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A step by step guide to setting up your ALTA 8 Pro
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Learn how to operate ALTA Pro
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Pilot Pro is documented separately from other Freefly products for improved searchability. Please follow this link to the Pilot Pro wiki.
ALTA X was designed from the ground up to be highly expandable and to support a large number of payloads. This section covers many of the integrations that have been tested.
For custom integrations, or to inquire about integrations in the works, please contact support!
Alta X can be used with a variety of radio controllers. Different radio controllers can map functions to different channels, so properly mapping controller channels to ALTA X functions is an important step before flying. Radio calibration and channel mapping are performed using the Alta X QGroundControl program or app. Pilot Pro's will also not require additional calibration after binding with ATLA X so you do not have to perform calibration or channel mapping.
If you are uncertain about your radio channel mapping, obtain assistance from an experienced pilot or from Freefly Customer Support.
Calibrating any compatible radio is done using the ALTA QGroundControl app. This only needs to be done when using a new radio with the ALTA; ALTA's that were bought with a radio have already gone through the Calibration and Mapping procedures.
Power the ALTA X by plugging in a USB-C cable to the expansion port.
The expansion port is located under the closeout between booms 1 and
Once connected, the ALTA electronics will be powered and you may turn on the radio.
Open the ALTA QGroundControl program, navigate to the Radio tab in the Vehicle Setup menu, and then initiate the radio calibration.
Make sure to reset all trims and sub-trims to zero before continuing with calibrating and mapping your radio.
Set the transmitter mode radio button that matches your radio configuration (this ensures that QGroundControl displays the correct stick positions for you to follow during calibration).
Move the sticks to the positions indicated in the text (and on the radio image). Press Next when the sticks are in position. Repeat for all positions.
When prompted, move all other switches and dials through their full range (you will be able to observe them moving on the Channel Monitor).
Press Next to save the settings.
Radio channel mapping is accomplished with the Alta X Qgroundcontrol App. Prior to mapping channels, ensure your radio controller and receivers are properly installed and calibrated. Refer to the Radio Installation section of this manual and your radio controller’s documentation.
Power the ALTA X by plugging in a USB-C cable to the expansion port. The expansion port is located under the closeout between booms 1 and 2
Once connected, the ALTA electronics will be powered and you may turn on the transmitter.
Open the ALTA QGroundControl program, navigate to the Flight Mode tab in the Vehicle Setup menu for access to the channel mapping.
Channel mapping can be customized by the user on this menu to fit their preferences. Below is a quick description of the items mapped to the transmitter and suggested channels for each mapped item.
The following functions can be mapped to radio controller channels. These are found in the Radio section of the Configurations menu in ALTA QGroundControl. Each function is also represented by a chart that responds to control input allowing for quick verification of mapping settings.
The Pitch, Roll, Yaw and Throttle controls are the basic flight controls and are mapped to the two radio controller sticks.
The required Mode Switch selects between the three different flight modes: Manual, Altitude, and Position. A three-position switch is recommended to select the three different modes. However, a two-position switch may be used, but will only allow for selecting between Manual Mode and (depending on radio controller mixes) either Altitude Mode or Height Mode
The optional Return to Home Switch selects between the different Return-to-Land (RTH) functions. At minimum a two-position switch is required for the Home Switch functions to select between RTL Off, and initiate RTL functions.
The following radio channel mapping configurations are recommendations only and can be set in ALTA QGroundControl. Depending on exact radio models, these may help as an initial configuration. However, it is up to the pilot setting up ALTA X for flight to determine if these settings are appropriate.
To integrate Pilot Pro on Alta X use the integration instruction found here.
For more details on Pilot Pro refer to its wiki!
Our Stock Futaba configuration and instructions on how to install are available on our knowledge base page.
The Futaba Receiver on the Alta X has the ability to transmit voltage telemetry back to the hand controller. To view the telemetry display window press the "Home/Exit" button on the left-hand side. Press once again to return to the default home screen.
We recommend landing the Alta X at 44v under load. Under electrical load the voltage will sag, when the voltage load is removed the voltage number will rise again. When the voltage reads 44v on QGoundControl or the transmitter while in flight you should be landing your aircraft and replace the batteries.
Landing voltage recommendations assume customer is using Freefly Alta X batteries that are kept in reliable condition. Battery performance can change over time and performance can change between manufacturers.
Begin with the aircraft unplugged.
Press the LNK button.
Navigate to the SYSTEM option and select it.
Select the LINK option on the left. The controller should start beeping.
Plug in Alta X. The aircraft will beep when it turns on and the controller should stop beeping.
Press the Home/Exit button 3 times. If there is a value under EXT-VOLT RECEIVER, the aircraft is bound.
Power on the transmitter.
Click LINKAGE MENU.
Click SYSTEM TYPE.
Click LINK on the right side of the menu.
Once the radio chimes and a pop-up opens, power on your aircraft or receiver.
Under "Rx1" you should have a new serial number populated, this is the PID of the matching receiver.
Alternatively, you can use an 850-00115 Futaba-to-USB cable to power the receiver if this is to be bound offline from the aircraft.
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To arm ALTA, put the throttle stick in the bottom right corner for 1.5 seconds. Upon arming, the propellers will start spinning and the boom LED indicator lights will turn bright green/red.
If the ALTA does not arm, please check QGroundControl for errors or warnings.
When armed, propellers will spin! Please follow all precautions and stay a safe distance away from ALTA X. Before arming, make sure to stay clear of the propellers.
To disarm ALTA, put the throttle stick on the bottom left corner for 1.5 seconds, you can also hold the stick straight down to initiate the land detector and disarm after once the UAV confirms it has landed. Upon disarming, the propellers will stop spinning and the boom LED indicators lights will dim. The aircraft will only disarm in flight in manual mode. Once landed, it can be disarmed in altitude and position modes.
Holding the throttle/yaw stick low and left in manual mode while flying can disarm the aircraft!
Under some conditions, ALTA will automatically disarm
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ALTA X has three primary flight control modes which are selected using the Mode Switch: Manual Mode, Altitude Mode, and Position Mode. ALTA X also has two emergency control modes, Return-to-Land and Autoland, which are available only during certain situations. For additional information, refer to the sub-section associated with each emergency control mode.
Altitude Mode and Position Mode are assistive only and are not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required.
Always center the control input sticks on the radio controller when switching between control modes to prevent unexpected movement of the ALTA X.
In Manual Mode, ALTA X will only stabilize its attitude. At neutral control input (middle pitch and roll stick position), ALTA X will attempt to remain level. Throttle control is direct. In this mode, it will blow with the wind, and will require constant throttle adjustment to hold altitude.
Altitude Mode changes the throttle stick behavior to command climb and descent rates. The higher the throttle stick position, the faster ALTA X will climb. Conversely, the lower the throttle stick position, the faster ALTA X will descend.
When the throttle stick is centered, ALTA X will enter Altitude Hold. In Altitude Hold, ALTA X will maintain a target altitude and try to correct for vertical drift. If a disturbance moves ALTA X away from this target altitude, ALTA X will climb or descend to return to the target altitude.
Altitude Mode is assistive only and is not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required.
Position Mode changes the pitch/roll stick behavior to command ground speeds. Pitch and roll stick deflection will command fore/aft and left/right ground speeds respectively. Controlling altitude in Position Mode is the same as in Altitude Mode.
With pitch and roll controls centered, ALTA X will enter Position Hold. In Position Hold, ALTA X will maintain its position over a given point on the ground and correct for disturbances.
Position Mode requires a strong GPS signal and communication with a minimum of 6 satellites. If a weak signal is present, ALTA X will not enter Position Mode
Position Mode is assistive only and is not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required.
Flight using Position Mode in areas of degraded GPS signal, such as near buildings or under dense tree cover, is not recommended. The automatic reversion to Manual Mode can cause unexpected, abrupt changes in flight behavior.
Waypoints mode allows ALTA X to execute a predefined autonomous waypoint missions that have been uploaded to the flight controller via ALTA QGroundControl (QGC). For more information on all of the different options and abilities built into the Waypoint functionality you can read more in the PX4 Literature.
ALTA X must have a GPS lock before takeoff to set a valid home position in order to start a waypoints mission. Waypoint mode will be unavailable if the aircraft took off before GPS lock was achieved. Operator must land and rearm with GPS lock to enable.
Return-to-Launch Mode will command ALTA X to fly back to the defined Home Point. When ALTA X first acquires a GPS position, it sets this as the Home Point of the flight. See the Radio Channel Mapping section in this manual for more information on setting up the Return-to-Launch Switch.
RTL can be initiated automatically with a LOS event if it is selected as the Signal Loss Action in ALTA QGroundControl. RTL can also be initiated manually while flying in any Mode and setting the Home Switch to RTL.
When initiated manually using the Home Switch, ALTA X will climb to the configured return altitude, fly back to the Home Point, and descend to 10m. ALTA X will hover above the home point and wait for a set amount of time and then land. The pilot can cancel the RTL procedure by returning the Home Switch to off.
During an LOS event, RTL followed by Autoland will be initiated automatically. ALTA X will first check its current altitude against configured RTL altitude. ALTA X will climb to Safe Height. Next, ALTA X will fly back to the home position at the default waypoint speed set in the ALTA X QGroundControl. Finally, upon reaching the home position, ALTA X will loiter for 45s and then begin to Autoland.
The Autoland function will land in place. The vertical speed at which the ALTA will descend during an Autoland varies as the ALTA approaches the ground. Higher above the elevation of the home point, ALTA X descends at a faster rate and gradually slows to the user-defined Autoland Descent Rate before landing. By default, the aircraft will descend at 0.7m/s until touchdown is detected.
Autoland is intended to be a failsafe in case of loss of RC control only. If control is available, the operator should land in manual mode. High wind, sloped ground, and narrow landing gear on the current payload can make the aircraft prone to tip over when auto landing. Reducing the autoland velocity may result in missed land detection for some weight combinations, which can have unpredictable results, so it is advised not to change this value.
The RTL switch on the radio will override all other modes, and prevent any mode switches. To return to a normal flight mode, make sure to toggle the RTL switch to OFF.
Ensure that the RTL switch is OFF before takeoff.
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It is suggested that the operator lands in Manual mode, as it offers the most control for a precise touchdown. However it is possible to land in Altitude and Position modes as well. The aircraft behaves a little differently in each mode:
In manual mode, the operator will maneuver the aircraft over the landing spot, and descend slowly using direct throttle control. As the aircraft nears the ground and enters ground effect, the pilot will often need to reduce throttle a little bit to keep the aircraft descending. Once touchdown is achieved, the operator should reduce throttle to zero promptly so that it settles on the ground instead of possibly bouncing or dragging the gear. Disarm as normal.
Landing in altitude mode is different than manual because the throttle stick now controls descent velocity rather than throttle directly. The aircraft will automatically adjust throttle through ground effect to maintain the same descent velocity. The operator will still need to manually control pitch and roll to maintain position over the desired landing site. Once the aircraft is on the ground, bring throttle stick to minimum, and then switch to manual mode and disarm. The aircraft will automatically disarm after 5 seconds if left running.
Landing in position mode uses the same altitude control as in Altitude mode, but additionally will control the position. This can be useful as it will fight the wind and drift automatically, but the aircraft may maintain a pitch and roll to do so, requiring care to avoid a prop strike on the ground or a tipover when using narrow landing gear. As the aircraft nears the ground, the maximum angle will be reduced to prevent large scale reactions to stick moments, but the operator should keep pitch and roll motions to a minimum when near the ground. Once the aircraft is on the ground, bring throttle stick to minimum, and then switch to manual mode and disarm. The aircraft will automatically disarm after 5 seconds if left running
It is possible to command the aircraft to autoland, as described above. It is not recommended in cases other than failsafe, or after careful testing. Autoland is not as precise as a human pilot, and certain payload combinations can result in tipovers or bouncing. Tall, narrow landing gear is particularly susceptible to tipover on autoland in high winds.
If the aircraft tips over with the props running, ALWAYS power cycle the aircraft before attempting takeoff again. If the motors or props hit the ground, they may not start on next arm and cause it to tip again.
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Introduced in FW 1.3.0, users can now configure a switch on their transmitter that, when enabled, will prevent manual disarm. Currently, users can disarm the aircraft in manual mode by holding the throttle all the way at zero, and the yaw stick all the way left for 1.5 seconds. In some cases, such as aggressive flying, this could happen inadvertently in flight, causing an inflight disarm and crash.
Please note this feature does exist when using Pilot Pro with Alta X.
This feature only prevents disarming via RC command. Disarm via Alta QGroundControl still works the same, and an inflight disarm can still be forced through that interface. That mechanism requires a second confirmation step, so it is not able to be accidentally triggered.
To configure, follow these steps while connected to the aircraft with Alta QGroundControl:
On the radio screen, toggle the switch that you want to act as the disarm lockout. Note on the channel list which channel number is changing when the switch is toggled.
Using the parameter screen, set RC_MAP_ARMLK_SW to the RC channel found in step 1.
Restart the aircraft
Test functionality, as described in the use section below. It is recommended to always test it before takeoff.
Before every takeoff, it is advisable to test the operation of the switch while idling on the ground to ensure it is functioning. Follow these steps:
Set to manual mode
Set disarm lockout switch to OFF
Arm the aircraft, keeping throttle at minimum, idling on the ground with props spinning.
Set the disarm lockout switch to ON
Attempt to disarm the aircraft. It should not disarm, and a warning in Alta QGroundControl will show indicating that disarm was blocked by the switch.
Takeoff and fly mission
Land
Set disarm lockout switch to OFF
Disarm aircraft as normal
Note that to prevent confusion, the lockout switch must be set to OFF for the aircraft to arm also.
Switch reversed - If the behavior of the switch is reversed it can be corrected by reversing the switch output on the transmitter, or by setting parameter RC<channel>_REV to -1, where <channel> is the RC channel number for the switch in question. For example, to reverse channel 8, set RC8_REV=-1
Threshold - The switch usually maps between 0 and 1. The default threshold is set to 0.75, so that on a 3 position switch, lockout is not enabled until all the way in the 3rd position. If this needs to be adjusted, it is set by the parameter RC_ARMLK_TH
If the aircraft crashes or otherwise needs to be disarmed quickly, do not forget to toggle the lockout switch to allow disarming.
When using Pilot Pro, the kill switch will instantly trigger an aircraft disarm.
The aircraft can also be emergency disarmed using Alta QGroundControl over the radio link. Select ARM at the top and then it will ask for a swipe to confirm in a box labeled "EMERGENCY STOP". WARNING: This will stop the motors immediately, even if flying.
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Alta Q Ground Control is the free mission planning software used with the Alta X. In addition to mission planning it can be used to update parameters and settings. The latest version of Alta QGC can be found on our support page.
You can connect your Alta X to QGroundControl using USB or the FRX modem.
Never power your drone with batteries with propellers on when not ready to fly. When powering the Alta X over USB C the motors are not able to arm.
Alta X flight control software contains functionality to calibrate and compensate rate gyro, accelerometer and barometric pressure sensors for the effect of changing sensor temperature on sensor bias. Each flight control has a unique calibration saved on the SD card of the flight computer. In the event the temp cal is removed and needs to be re-installed, follow these directions.
If the temp cal has been removed from the SD Card- freefly support can provide you with the temp cal associated with the serial number of your drone. Email support with your serial number if needed.
Alta X has a number of safety features to protect and recover your vehicle if something goes wrong:
Failsafes allow you to specify areas and conditions under which you can safely fly, and the action that will be performed if a failsafe is triggered (for example, landing, holding position, or returning to a specified point). The most important failsafe settings are configured in the QGroundControl Safety Setup page.
To adjust failsafe settings connect to QgroundControl and navigate to Vehicle Setup page and then the Safety Tab on the left sidebar.
For more information on Failsafe settings visit PX4 Page.
By Default battery failsafe action is set to warning- which means an audible warning on QGroundControl and flashing lights on the drone.
Adjusting battery, RC Loss, or Data Link Loss failsafe triggers should be done with care and a full understanding of the parameters and actions. If you're not sure don't change from default or contact support for clarification.
It is possible to recover from a failsafe action (if the cause is fixed) by switching flight modes. For example, in the case where RC Loss failsafe causes the vehicle to enter Return mode, if RC is recovered you can change to Position mode and continue flying.
If you need to reboot the aircraft but don't want to disconnect power, you can reboot through Alta QGC. This is good for when you don't want to power down your payload or accessories but the flight controller needs a reboot.
In Alta QGCS click the "Vehicle Setting" button on the top left. (3 Gear Icon)
From the option displayed on the left-hand side click the "Parameters" button (2 Gear Icon)
Click the "Tools" button in the top right.
Click "Reboot Vehicle " option.
Select "OK" option.
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Missions can be created, loaded, saved, and modified from the Plan View. An overview of Plan View can be found in public QGC documentation. Click on (+) sign at the toolbar left of the screen to enter waypoint addition mode. In this mode, users can add waypoints by tapping or left clicking on the 2D map. A new plan can be created by clicking File -> New -> Yes when in Plan View.
To modify a waypoint, first click on it. The selected waypoint will turn green. Click and hold on clicking for a second time to drag the waypoint around the map. Latitude and longitude values will change automatically.
When the initial waypoint is added, a Planned Home indicator is automatically added. Initial waypoint will automatically be named as “Takeoff”. Planned Home is where the aircraft will land if a return to home signal is sent, unless there are rally points. Takeoff location is the first waypoint the vehicle will move towards as soon as mission mode is entered.
Users can observe mission specific values such as total mission time or total mission distance from the panel at the top of the screen. Once users are finished modifying a mission the mission needs to be uploaded to the vehicle. If a vehicle connection is established with the QGroundControl, a button named “Upload Mission” will be highlighted as soon as user makes a modification to the mission itself. Click on “Upload Mission” to load the mission file. Afterwards, go to “Flight View”. Uploaded mission can be executed from the Flight View by sliding the mission start slider or taking the vehicle into mission mode.
Detailed waypoint list can be used to give commands at each waypoint. Command menu can be accessed by clicking on the three horizontal lines (top right of waypoint details panel). These commands will add an extra waypoint. The point of this waypoint is to indicate that there will be a command executed, it’s not really a physical waypoint. These commands include the following options: return to home, go to another waypoint, land and takeoff. Since the addition of the “command waypoint” might cause confusion, users are advised to get hands-on experience with simpler missions.
The Flight Speed variable inside the detailed waypoint list assigns a speed value that will be executed after vehicle passes the waypoint. For example, if default Flight Speed is set to 5 m/s and it is re-set to 20 m/s at third waypoint, vehicle will start to increase its speed from 5 m/s to 20 ms/ as soon as it passes waypoint three. So the target flight speed between waypoint 3 and waypoint 4 will be 20 m/s. Unless flight speed is reset back to 5 m/s at waypoint 4, 20 m/s value will be passed to rest of the waypoints.
To ensure the safe use of Terrain Follow Mode on the Alta X, please adhere to the following safety guidelines:
Minimum Flight Height: Always maintain a minimum height of 20 meters above terrain to safely account for unexpected terrain changes.
Terrain Type: Best used over smooth terrain; the system may not accurately navigate large or sudden elevation changes.
Know Your Terrain: Familiarize yourself with the flight area. Do not solely rely on navigation data for flight planning and execution.
Data Use: The elevation data, provided by Airbus from the Copernicus Digital Elevation Model, is to be used at your own risk. Recognize that environmental changes and data inaccuracies can affect flight safety.
Important: Safe operation of the Alta X in Terrain Follow Mode requires careful planning and judgment by the pilot. The guidelines above are designed to assist but not replace pilot responsibility.
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ALTA X is pretuned by Freefly, and can be flown without changes. However, each user may have a different preference or use case for their aircraft. This section gives some guidance for how to tune some of the behaviors of the aircraft to suit individual needs. It is NOT recommended to tune low-level control parameters, as they could cause instability or control issues which could result in a crash.
Loading the default parameters or known-good presets will allow you to quickly return to a functional and safe configuration if there is ever uncertainty about changes to the tuning properties.
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ALTA X features redundant, highly sensitive 3-axis magnetometers, gyroscopes, and accelerometers that measure specific force, angular rate, and earth’s magnetic field to infer heading and maintain stability. Occasionally, the sensors will require re-calibration.
ALTA X’s compass may require calibration if locations have changed. For best results, it is recommended to perform manual compass calibrations away from ferrous objects, buildings and vehicles. In addition, concrete can contain steel rebar which may influence compass calibrations.
Perform calibration without a payload attached and all motor booms extended and latched. Folded booms will cause an inaccurate calibration.
It is recommended to use two people to perform the compass calibration as it requires handling and rotating ALTA X.
Alta X has 4 magnetometers, one in the GPS mast, and 3 internally used as backups. In cases where a payload is mounted that affects the onboard magnetometers more than the external one, QGroundControl will notify the user that magnetometers are inconsistent. Users can calibrate the aircraft with the payload attached to solve.
If the payload is causing enough corruption that calibrating with it on does not work, contact Freefly support for alternative solutions.
Please note, you will have to disable wifi to complete a compass calibration.
Follow the instructions below to perform a compass calibration on ALTA X. Compass calibrations should be done when flying in a new location or when ALTA QGroundControl prompts a calibration.
Follow the instructions below to perform an accelerometer calibration on ALTA X. Accelerometer calibrations should only be done when prompted by ALTA QGroundControl.
Follow the instructions below to perform a level horizon calibration on ALTA X. Horizon calibrations should only be done if the horizon (as shown in the HUD) is not level after completing Accelerometer calibration and the aircraft is sitting on a level surface.
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The GPS module includes multi-color LED status lights that provide extra indication of aircraft status on the ground.
Between 2019 and Spring of 2021 the Alta X Shipped with the Here2 GPS. (pictured below) In May of 2021 the Alta X started Shipping with the Freefly F9P GPS as a standard offering. If The GPS on your Alta X does not look like the one pictured below you can see more info on your GPS on the RTK GPS Page.
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ALTA X provides two main connectivity methods for wireless telemetry: WIFI for short range, FRX Pro (optional) for long range. The wireless connectivity allows users to define parameters, monitor ALTA and configure missions.
There is an active service bulletin regarding WIFI for Alta X 1.3.6 and older firmware.
We currently recommend only enabling FRX connectivity (enabled by default) or WIFI connectivity. The steps below will configure either WIFI or FRX connectivity for you.
Please familiarize yourself with the Service Bulletin and contact Freefly Support if you have further questions.
WiFi is most useful during preflight planning. WIFI is disabled by default, please see the next section for enabling WiFi.
After enabling the WIFI, connect your ground control device to the SSID (“ALTAX-[SN]"). Once connected, open QGroundControl, and it will automatically detect the connection and connect to the ALTA.
If operating multiple ALTAs, please make sure you connect to the correct one. It is advised to set different passwords for each aircraft to minimize chance of erroneous connections.
ALTA X allows users to update the system’s WiFi password and SSID. All ALTA Xs initially come with WiFi disabled for safety reasons. To enable WiFi connectivity follow the steps below!
Please read this entire section if you intend to use the WiFi feature of ALTA X.
When flying multiple aircraft with WiFi enabled, take extreme caution to ensure that the aircraft connected to the laptop/mobile device is the desired craft. Failing to connect to the correct device may result in an inadvertently arming a aircraft or disarming one that is inflight .
You may enable WIFI using the steps below, or by loading the ALTAX-enablewifi.param file located on the Alta X support page.
ALTA X passwords must be longer than eight characters and should be unique for each ALTA X. Do not use the same password on multiple machines!
We suggest not selecting ‘Connect Automatically’ when using WiFi to connect to ALTA X and clearly labeling each FRX Pro pair.
To reset the wifi, follow these steps:
The optional FRX Pro long range radio provides telemetry and aircraft control out to much longer range than the WiFi connection.
You may disable WIFI using the steps below, or by loading the ALTAX-disablewifi.param file located on the Alta SD card or from the Alta X support page.
Overview video on how to install, bind, and configure FRX Pro for Alta X
FRX Pros configured for use in non-ALTA products (ie, Mōvi) need to be reconfigured before they can be used in ALTA. Please contact Freefly for instructions to reconfigure the radios. The symptom for mis-configured radios is that only one radio shows a Green LED and rebinding does not reestablish communications.
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ALTA X provides comprehensive logging capabilities, which are enabled by default. In the default configuration, logging starts when the aircraft is armed, and ends when the aircraft is disarmed. These logs are stored on the onboard SD card, and can be downloaded to provide information about the flight.
Logs are stored on the onboard SDcard. To download them, follow the following steps.
If the aircraft never acquired GPS, the aircraft may not have good time information and may label the folder as “sess002” or equivalent. In this case, the largest number is the most recent.
Logs can be downloaded using QGroundControl over the datalink, but this is discouraged as it is VERY slow and the logs are often corrupt. USB mode is recommended.
Log files are in “ulog” format. This format is binary, and contains extensive information about the flight and the vehicle. The easiest way to view the logs is to browse to http://logs.px4.io and upload the ulg file. It will present many plots showing data such as angles, position, speed, GPS quality, vibration, etc. It will also show the build information, current configuration, and any errors detected in the flight.
The onboard SD card holds between 8GB - 32GB of data, which is able to store logs for hundreds of flight hours. The ALTA X will start to delete old logs if it runs out of space, so it is useful to periodically clean out the logs if you don’t want them to be lost. Download all the logs as shown above, and then delete all (or some) of the folders in the “logs” subdirectory.
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ALTA X supports MAVLink connection via two connectors, with one on the communications expansion panel on the outside of the aircraft (labeled UART) and one inside the aircraft.
The external UART connection uses 57600 baud 8-N-1. This port is packet switch multiplexed with an OSD module, which means that there will be some periodic MAVlink parameter streams present by default for OSD use. Because it is packet switched, the user does not need to account for multiplexing their transmitted messages themselves, but instead just needs to plan for the fact that there will be some unrequested traffic received from the flight controller.
The internal port is prewired with a cable made available inside of the chassis. The connector is a JST GH 6 pin connector matching the standard dronecode/PX4 pinout. It is paired with a standard 4 pin GH CANbus connector for peripheral CANbus connections.
The internal port is shared with the WIFI module. To enable it for external communications use, you must ensure WIFI is disabled using the parameter “FF_WIFI_ENABLE”. WIFI is disabled by default, which means external communications are enabled. The internal port uses 921600 baud 8-N-1 by default but is modifiable using parameter “SER_TEL2_BAUD”.
This UART can be configured as a MAVLink “onboard” port, which enables a group of standard MAVLink streams for communication with an onboard companion computer.
See this for more details: https://docs.px4.io/main/en/peripherals/mavlink_peripherals.html
Everything you need to know for an excellent experience with Freefly Products
Not finding what you need? Head over to the Support Page for Knowledge-Base articles, firmware, and more.
ALTA X is a professional multi-rotor aircraft designed for demanding cinematic, professional, and industrial applications. Completely redesigned from the ground up, ALTA X is the next generation of the ALTA family. Built for the user, ALTA X emphasizes expandability and customization to make sure it can stand up to all challenges thrown its way, while still being the reliable workhorse drone that ALTA pilots know and love.
This Aircraft Flight Manual describes the complete operation of airframe and flight control systems, and the normal maintenance of those items. Do not operate ALTA X without reading and understanding this manual.
This manual is not a substitute for adequate flight training. Training requirements can vary when operating in different countries or under different flight conditions. Always consult local regulations before flying ALTA X. In areas where there are no flight training requirements, it is the sole determination of the pilot-in-command as to whether he or she has the appropriate level of training or experience for a given flight. Always set and adhere to personal minimums and fly within your own capabilities.
Throughout the manual warnings, cautions and notes are used to highlight various important procedures. These are defined as follows:
Warnings are used to highlight procedures which, if not strictly observed, may result in personal injury.
Cautions are used to highlight procedures which, if not strictly observed, may cause damage to equipment.
Notes are used to highlight specific operating conditions, usability tips and tricks or steps of a procedure.
Astro is documented separately from other Freefly products for improved searchability. Please follow this link to the .
Function
Channel Number
Direction
Pitch
2
Normal
Roll
1
Normal
Yaw
4
Normal
Throttle
3
Reverse
Mode Switch
5
Normal
Home Switch
6
Normal
Definitions
Armed
Aircraft will spin propellers, ready to fly
Disarmed
Safe mode, no spinning propellers
Conditions
ALTA X Behavior
Ground timeout before taking off
If ALTA has not taken off after 2 minutes idling armed on the ground, it will automatically disarm. This timeout can be changed in parameter COM_DISARM_PRFLT (units are in seconds, a value of “0” disables this timeout entirely).
Ground timeout after flight
If ALTA has been previously flown but not power cycled, after 5 seconds idling armed on the ground, it will automatically disarm. This timeout can be changed in parameter COM_DISARM_LAND (units are in seconds, a value of “0” disables this timeout entirely).
Autoland
If ALTA detects landing in Autoland mode, it will disarm after 5 seconds following the logic above. See section “Landing Modes” for more information on the Landing Detector feature.
Parameter
Function
MPC_THR_HOVER
Controls the throttle setpoint required for hovering. This depends on the weight of the aircraft, and is about 29% for no payload. Default is 40% for a 15lb payload.
Setting this parameter correctly will eliminate drops or climbs when switching between manual and either altitude or position mode with the throttle stick at 50%. It is also important to set this parameter correctly to prevent bunny hops when landing in automated or in position modes.
BOOM(1-4)_COLOR
Controls the color of each boom LED.
OSD_(*****)
All parameters starting with 'OSD_' configure how the OSD looks and acts.
OSD_BAT_ALARM
Sets what cell voltage the aircraft will flash the Boom lights and the OSD battery symbol to indicate low battery to the user.
MPC_MAN_TILT_MAX
Defines how far the aircraft is allowed to tilt while being controlled in manual mode. This can be reduced for a little less aggressive feeling for a pilot. Recommended to leave at 45 degrees for maximum performance. Reducing to 35 degrees will give a more gentle and slow flight handling. This parameter only affects manual mode. In position and automodes, the aircraft angle is set to 45 for performance.
MPC_VEL_MANUAL
Defines how fast the maximum speed the aircraft will fly in position mode. This can be reduced for more fine control at lower speeds.
MPC_XY_CRUISE
Defines the default waypoint speed, as well as the RTL speed. This can be increased up to 20m/s, however it is suggested to set waypoint velocity separately for missions. If setting this high and commanding slow waypoint velocities may result in the aircraft slowing down too far in advance of a waypoint.
*_EXPO
Controls stick expo in different modes, can be used to adjust the feel of the aircraft while flying. More expo will require more stick input to get the same angle or speed when near zero stick, and will increase rapidly to maximum once the stick is at higher deflections.
MPC_Z_VEL_MAX_(UP/DN)
Controls maximum climb and descent velocities in altitude, position and waypoint modes.
Waypoint specific Variables
Waypoint specific values -such as speed, altitude or commands- can be modified by selecting a waypoint and using the detailed waypoint list at the right hand side of the screen.
Planned Home
Planned Home (a.k.a Mission Start) item in the detailed waypoint list can be used as a settings item. The altitude and flight speed values will be passed to all other waypoints along the list.
Mission Ending
Mission ending characteristics can be customized by toggling “return to home” option.
Home Position
The home position can be changed and centered to the middle of the map from the settings item.
Issue
Tuning Resolution
My aircraft is too aggressive in manual mode
Reduce MPC_MAN_TILT_MAX to 30-35 degrees. Do not reduce it further as it may not be able to handle wind.
My aircraft is too fast in position mode
Decrease MPC_VEL_MANUAL - this value defines the maximum speed at full stick in position mode. If a more precise, slow velocity is required, reducing this will cap the speed and give more stick sensitivity at lower speed
Increase MC_XY_MAN_EXPO to decrease sensitivity for small stick motions.
My aircraft climbs or descends too quickly/slowly in altitude and position mode
Adjust MPC_Z_VEL_MAX_DN and MPC_Z_VEL_MAX_UP. They control the maximum speed
My aircraft accelerates too slowly or quickly in position mode
Adjust parameter MPC_ACC_HOR to increase or decrease the acceleration used to reach the desired velocity. Value is m/s^2
Adjust parameters MPC_ACC_UP/DOWN_MAX to control how fast the aircraft accelerates vertically.
1.
Click the Level Horizon sensor button.
2.
Place the vehicle in its level flight orientation on a level surface.
3.
Click OK to start the calibration.
1.
Connect to ALTA X using the FRX Pro or USB
2.
Go to the System Parameters under the Parameter tab in the Vehicle Setup menu and find the FF_WIFI_ENABLE parameter
3.
Change the FF_WIFI_ENABLE parameter to 1 and MAV_0_CONFIG to "TELEM2" and restart ALTA X
4.
Re-download the parameters by selecting Tools... Refresh in the parameter screen
5.
Check (or set) the following parameters to configure wifi: MAV_0_MODE=Normal, MAV_0_RATE = 20000, MAV_0_FORWARD=Disabled, and SER_TEL2_BAUD=921600 8N1
6.
Restart the Alta X and connect with a wifi device.
1.
Power off Alta X
2.
Hold MSC button and connect USB power, wait for it to load into USB file mode
3.
With the aircraft still powered on in USB file mode, press and hold the BOOT button for 10 seconds.
4.
The Wifi will default to SSID: ALTA with password "altaalta"
5.
Change the wifi settings as described above in "Configure WIFI Settings"
1.
Connect to ALTA X using the FRX Pro or USB
2.
Go to the System Parameters under the Parameter tab in the Vehicle Setup menu and find the FF_WIFI_ENABLE parameter
3.
Change the FF_WIFI_ENABLE parameter to 0 and MAV_0_CONFIG to "TELEM1" and restart ALTA X
4.
Check (or set) the following parameters to configure wifi: MAV_0_MODE=Normal, MAV_0_RATE = 1200, and MAV_1_FORWARD=Enabled
5.
Restart the Alta X and connect with a wifi device.
1.
Plug the ground FRX Pro into a laptop or portable device using a USB-C cable
The device should recognize the FRX as a serial comms device
The LED on the FRX will light up
2.
Power up ALTA X, if bound the FRX's will connect automatically and begin sending data back and forth.
1.
Power up the ALTA that has the FRX Pro using batteries (powering up with USB will not provide power to the FRX)
2.
Plug the ground FRX Pro into a laptop using the USB-C cable
3.
If the FRX Pro modules are already bound and connected to a ground station FRX Pro, the status lights on both FRX Pro modules will turn green after a few seconds.
If the status light on both radios does not turn green after 10 seconds, press the bind button of the FRX Pro connected to the controller, wait one second, then press the bind button of the other FRX Pro.
4.
Both FRX Pro's status lights will begin flashing green and the modules will initiate the binding procedure.
If the FRX Pro modules cannot establish a connection the status lights will turn red and then return to their standby state.
5.
Repeat the binding steps above if a binding attempt fails.
1.
Ensure the ALTA X's battery is unplugged.
2.
Hold down the button labeled “MSC” on the expansion board while plugging in a USB-C cable that is attached to a computer. Hold the MSC button for 5 seconds.
3.
The aircraft should enumerate as a USB drive on the host computer. This may take another 10-15 seconds depending on the host PC.
4.
Open the new USB drive in a file manager.
5.
The “logs” subdirectory contains all the logs.
6.
In the logs directory, there are subdirectories labeled with a date. In each folder is a time stamped file with a “.ulg” extension. These are the logs
7.
Download whichever logs are of interest. There may be some logs with very small file sizes, less than 1MB. These are typically generated by arming and then immediately disarming.
Operating Alta X with DJI Transmission
DJI's transmission technology works on various frequency bands, including non-DFS (Dynamic Frequency Selection) and DFS frequency bands. While this empowers filmmakers on movie sets, it also raises concerns about potential interference with aircraft (Alta X) operating within the same area.
The non-DFS frequency bands, comprising ranges such as 2.4000-2.4835 GHz, 5.150-5.250 GHz, and 5.725-5.850 GHz, are widely used by various wireless devices. DJI Transmission systems operating in these frequency ranges may unintentionally disrupt the operation of Wi-Fi networks, Bluetooth devices, and other aircraft connections. Such interference can lead to signal degradation, communication disruptions, or even complete loss of control for other devices sharing the same frequency spectrum.
Similarly, DJI's transmission technology in the DFS frequency bands, encompassing ranges like 5.250-5.350 GHz, 5.470-5.600 GHz, and 5.650-5.725 GHz, operates within frequencies that are subject to regulatory requirements to avoid interference with radar systems. Unintended interference from DJI Transmission can compromise the functionality of critical systems while working. This interference can pose significant risks to the safety and efficiency of any Alta X (and other Drone) operations in its vicinity.
Conclusion:
While DJI's transmission technology offers unparalleled connectivity and video transmission capabilities for cinematography, it is vital to emphasize the potential risk of interference it can cause to other aircraft (Unmanned & Manned) and systems operating within the same frequency spectrum. Responsible drone operation, adherence to regulatory guidelines, and airspace awareness are paramount to ensure the safety and efficiency of all aircraft.
MoVI Carbon makes a perfect companion to the ALTA X. When installing Carbon onto an ALTA, please note the following:
To use MōVI Carbon with ALTA X, we recommend using the 40 duro isolators that ship with ALTA X.
Install landing gear on MōVI Carbon and attach to ALTA X using the Toad in the Hole Quick Release.
We recommend using qty 2 12s 16Ah flight packs with MōVI Carbon as this will allow 20+ minute flight times.
The default Movi Carbon tuning should work well with ALTA X.
FRX Pro can be added to MoVI Carbon to increase control range and robustness.
1.
Important: Make sure your aircraft is on the most recent firmware and you are using the latest Alta QGroundControl on your controller (Pilot Pro and UXV) or your computer
2.
Open Alta QGC and wait for aircraft to connect.
3.
Navigate to the Vehicle Setup page on the top left of QGC (3 gear icon) and find the Parameters tab on the left side of the screen. (2 gears icon)
4.
In the search tab, search for "SYS_AUTOSTART"
5.
For Pilot Pro, set this to 4511
For UXV, set this to 4510
For Futaba, set this to 4510
6 a.
If using Pilot Pro or UXV, select the Tools button on the top right of parameters tab, and select load defaults.
6 b.
If using a computer, search for "SYS_AUTOCONFIG" and set this to 2 . (you may need to click on "manual entry", then "force save")
7.
Reboot Aircraft.
8.
Calibrate Sensors. Always remember to select "No Rotation" for your External Compass Orientation.
1.
Plug in a USB cable to your computer. Leave the other end unplugged from ALTA X for now.
2.
Remove the chassis closeout between Booms 1 and 2 to reveal the expansion board.
3.
Continually hold down the USB MSC Button on the expansion board while plugging in the USB C to the expansion board on your ALTA. The Nav lights on the Alta should remain blue. Your ALTA will now show up in your file browser as a USB disk named FF-ALTA.
4.
You should see a file name containing the aircraft SN followed by Tempcal.params. Download or copy this file to your computer.
5.
"Eject" the USB Disk from you computer and remove USB-C Cable.
6.
Plug in the USB C into the expansion board. (no button press) ALTA X should display Blue lights, then white, then display red and green directional lights on the motors.
7.
Open Alta QGC and wait for aircraft to connect.
8.
Navigate to the Vehicle Setup page on the top left of QGC (3 Gears Icon) and find the Parameters tab on the left side of the screen. (2 Gears Icon)
9.
Select the Tools button on the top right of parameters tab, and select load from file. Load the Tempcal.params file.
10.
Reboot Aircraft, connect to QGC and confirm parameters saved by navigating to Parameters page and selecting Thermal Compensation tab on the bottom left. The majority of the parameters should be non-zero values.
11.
Reboot aircraft
1.
Mount a pair of batteries onto ALTA X.
2.
Plug in the batteries to power up the aircraft.
3.
Open the ALTA QGroundControl and connect to ALTA X.
4.
Navigate to the Sensors tab under Vehicle Setup.
5.
Available sensors are displayed as a list of buttons beside the sidebar. Sensors marked with green are already calibrated. Sensors marked with red require calibration prior to flight.
6.
Click on the button for each sensor to start its calibration sequence and follow the instructions provided in the ALTA X QGroundControl.
7.
Start by selecting Set Orientations and set the autopilot orientation
Autopilot Orientation: ROTATION_YAW_180
External Compass Orientation for Here2 GPS: ROTATION_YAW_270
OR
External Compass Orientation for RTK/F9P: NO_ROTATION (set to YAW_180 if placed in the alternate [rear] location)
1.
Click the Compass sensor button.
2.
Click OK to start the calibration.
3.
Place the vehicle in any of the orientations shown in red (incomplete) and hold it still. Once prompted (the orientation-image turns yellow), rotate the vehicle around the specified axis in either/both directions. Once the calibration is complete in that orientation the associated image on the screen will turn green.
4.
Repeat the calibration process for all vehicle orientations.
1.
Click the Accelerometer sensor button.
2.
Click OK to start the calibration.
3.
Position the vehicle as guided by the images on the screen. This is very similar to compass calibration.
GPS Color
Meaning
Description
Solid Blue
Armed, No GPS Lock
Indicates vehicle has been armed and has no position lock from the GPS. Position, Mission and RTL flight modes are not available.
Warning! When armed, propellers will start spinning!
Pulsing Blue
Disarmed, No GPS Lock
Indicates vehicle is disarmed armed and has no position lock from the GPS. Position, Mission and RTL flight modes will not be available until GPS lock is acquired.
Solid Green
Armed, GPS Lock
Indicates vehicle has been armed and has position lock from the GPS. All flight modes are available.
Warning! When armed, propellers will start spinning!
Pulsing Green
Disarmed, GPS Lock
Indicates vehicle is disarmed and has position lock from the GPS. All flight modes will be available.
Solid Purple
Failsafe Mode
Indicates an error has been encountered during flight and the vehicle will enter RTL mode.
Solid Amber
Low Battery Warning
Indicates a battery voltage below threshold.
Flashing Red
Error / Setup Required
Indicates an error, typically an issue with sensor calibration or autopilot configuration.
Flashing Purple
System Resource Utilization Too High
This light is encountered when system RAM/memory usage is above 98%. See Service Bulletin SB006
1.
Connect to ALTA X’s WiFi using the initial password listed below
SSID: ALTAX-<serial number>; eg. ALTAX-781880
Password: altaalta
Note that this connection won't provide internet, and some devices may disconnect if not internet is detected. Users will have to disable this feature to use Alta X WIFI
2.
Open your preferred web browser and go to 192.168.4.1
3.
Select setup, then update the SSID and password as necessary. Make sure to make the password is eight characters long, secure, and noted down somewhere in case you forget!
Do not change any of the other menu items!
4.
Once the password and SSID have been updated, hit the save button at the bottom of the menu.
5.
Power cycle ALTA X and ensure you can connect to ALTA X using the new password.
Alta X (DIU Blue Package) comes with a UXV tablet-based controller with an RFD 900X telemetry radio. This knowledge base wiki page aims to provide an overview of the usage and operation of the Alta X with the UXV hand controller.
Before operating the Alta X with the UXV controller, make sure you:
First Time Setup
The UXV controller ships with a factory password. Upon receipt, update this to a password of your choice with the following minimum requirements:
Review the different Alta X offerings, particularly the DIU Blue Package, which includes a UXV tablet controller and a RFD 900X telemetry radio.
Read the Alta X wiki to familiarize yourself with the platform's setup and operation. Pay special attention to the Quick Start Guide and Aircraft Setup sections. Note that most articles use Futaba as the primary controller. This page will focus on the differences in operating with the UXV controller.
15 characters consisting of lower and upper case letters, numbers, and symbols.
Security
Always keep the Alta X UAS and Controller physically secured. Unauthorized access to these items can allow attack vectors such as modifications of aircraft settings, or unauthorized exfiltration of confidential data and flight logs.
Freefly records default passwords as well as radio pair encryption keys as part of the production process. If the user requires increased security it is suggested the user updates these items.
Enabling LTE, WiFi, or Bluetooth will increase the vulnerability of the tablet.
Safety Warnings
Even when Q-Ground-Control (QGC) is not open, the tablet is still sending RC controls. This is by design so that if the app crashes, you can maintain control of your aircraft. Always treat the tablet as being in control of the aircraft.
Proper antenna placement is crucial for optimal performance. Follow these guidelines:
On the drone, ensure the antennas face down as pictured.
On the UXV controller, position the antennas vertically. Hold the controller with the long antennas pointing up or down, and avoid touching them to the controller's back. For the best performance and range, make sure not to point the tips of the antennas at the aircraft.
Maintain line of sight with the aircraft for optimal range and connectivity. Plan missions accordingly.
Antenna installation on the controller can be tricky. Gently place the antenna on the RP-SMA connector and turn the silver part to attach the antennas until hand-tight.
Be gentle when repositioning the antennas once tightened.
Take a moment to familiarize yourself with the locations of controls and mode buttons pictured below:
Manual mode is intentionally not set up on the UXV controller by default, as the sticks are not designed for precision manual flying. We don't recommend flying in manual mode.
Startup flight modes - PENDING:
The drone starts up in PENDING flight mode, meaning it doesn't yet have a enough GPS position lock or home point.
The drone automatically switches from PENDING to POSITION mode when a position lock is available.
If the operator wishes to take off without a valid home point, they can click the mode button to altitude mode and take off anyway. Be aware that return failsafe will not function without a valid home point established before takeoff.
(QGC) QGroundControl allows users to enter any flight mode via the flight mode dropdown, however, it is not recommended unless the user has prior experience with these modes. Use the controller buttons for mode switches and the on-screen slider for mission start when possible to avoid accidental mode changes.
Follow the flight checklists here
UXV joysticks:
The UXV joysticks send SBUS commands directly to the aircraft and function even if QGroundControl is closed or the tablet stops working.
Taking off in pos+alt mode,
To Takeoff, hold the left control stick fully down and right for 1.5 seconds to arm motors.
Once motors are at idle speed and all motors are running smoothly, push up on the left stick to takeoff and climb to the desired altitude.
Landing in pos+alt mode,
Do not give positional commands during landing unless necessary, even minor joystick inputs when touching down can cause tip overs.
Once on the ground, keep throttle low and allow the aircraft to auto disarm in 5 seconds.
RTL
Always check Return To Land settings for the operating area. Select an altitude high enough to clear any obstacles between any flight location and the home point.
A loss of link event will initiate an RTL (Return to Landing). When this occurs, the aircraft will climb to your preset altitude and fly directly to the home point. This should be accounted for when selecting a takeoff location to avoid tall obstacles.
To manually activate an RTL, center press the left directional pad momentarily.
Emergency shutoff:
In case of emergency, click "armed" on QGC and swipe to shut down. This will work even when the aircraft is airborne
Be aware that emergency disarm in the air will lead to a crash, so this action should only be taken in extreme situations when absolutely necessary to prevent a potentially more dangerous outcome.
Low battery
Low battery failsafe activation may occur early if the drone has low battery and high power demands.
The failsafe doesn't consider the drone's distance from takeoff when returning, so plan accordingly to prevent battery depletion.
To abort low battery, reselect position mode to override. Use caution!
Low battery thresholds may be adjusted for specific use cases. For instance you can decrease the threshold when flying close or with light payloads.
Mission guidance:
The default mission and RTL speed have been increased to 10m/s in this firmware (5m/s was the default before). Users may need to override the speed in the mission if they previously relied on the 5m/s default.
Charging time:
Be aware that charging the UXV controller can take a long time. Always charge in advance.
Supplemental power can be provided to extend the run time by using an external USB power source, such as a battery bank.
Freefly RTK does not currently work on the Alta X DIU Blue Package with the UXV controller.
ALTA X is designed to be as low-maintenance as possible. It is recommended to check ALTA X’s fasteners regularly. This check should occur roughly after every 15 flights. To check ALTA X’s fasteners, apply a tightening torque to each fastener on the chassis using the supplied hex drivers. The fasteners should not slip.
Check the tightness of the following fasteners to verify no loose fasteners:
Motor mount bolts
Boom clamping bolts
Prop hub bolts
Prop bolts
Top and bottom chassis bolts
Closeout panel bolts
FPV camera mounting plate bolts
Boom stay attachment bolts
GPS/Compass mounting bolts
If a fastener does slip, tighten it using the methods described in the Fastener Installation section. Do not apply additional thread locking compound unless the fastener has repeatedly come loose.
Check the tightness of the fasteners as described above.
Inspect the following items. Replace if worn.
Propeller blades - Chips, cracks, or deep scratches
ActiveBlade bumpers - Broken or crushed
Frame Bumpers - Broken or crushed
Pan Isolator Rings - Tearing or gummed up to the post
Check boom latching tightness by closing the latch. There should be a firm closing force and click. Adjust the tension by using a 2.0mm hex wrench on the set screw located in the rear of the latch link.
For long-term storage, it is recommended you put your batteries on a storage charge every 3 months. The batteries can over discharge over time due to parasitic loss in the BMS. Making sure your batteries are at proper storage voltage every three months will prevent permanent damage due to over-discharging.
The longevity and health of the battery is fully dependent on how you treat and care for it. One important aspect of the care of a lipo is storage voltage. Storing the battery at a charged voltage for more than 2-3 days will start to degrade the battery. The optimal storage voltage for lipos is 3.8v to 3.9v per cell (45.6v to 46.8v total.) After a mission, a Lipo charger can be used to put batteries in “Storage Mode”. This will either discharge or charge your battery to get it to storage voltage. Batteries should be placed in a cool environment with a recommended storage temperature from 10°C to 25°C. For storage make sure your battery is kept in a dry fireproof cabinet.
We recognize that our users put Freefly gear into a wide variety of demanding situations and count on their equipment to perform reliably. Freefly recommends that users send their equipment back on the following intervals for a checkup to ensure optimal long-term performance and reliability.
Freefly will inspect your Alta with specific emphasis on:
Wear / fatigue items
Updated / improved / revised components
Confirm performance thresholds:
Motors
Sensors
The service will include:
Service bulletin and firmware updates.
Full airworthiness inspection
Full cleaning and fastener replacement (as needed)
System level test and re-qualification
Use Of Threadlocker
Bolts and screws used in the daily use of this aircraft do not require threadlocking compound. This includes the screws holding on the battery trays, vibration isolation system and the Skyview landing gear parts.
However, for the structural fasteners described in parts of this section blue Loctite 243 compound or equivalent is required. Apply sparingly to the threads before insertion.
Fastener Installation
The Freefly hex drivers included with ALTA X are designed to limit the torque that can be applied to each bolt or screw and help prevent stripping the fastener head.
Thread all fasteners into their respective holes until snug (when the fastener head bottoms out and lightly clamps the two mating parts together).
To prevent excessive tightening and damaging the fastener or parts, twist the driver from the smaller diameter knurled section of the tool between your thumb and index finger for small fasteners (under size M3) or with your thumb and two forefingers for larger fasteners (size M3 and larger).
Before performing any part replacement, ensure that ATLA X has been unplugged from any power source. Leaving ALTA X powered while performing any work on it can result in a potentially dangerous situation.
Props are supplied as a weight matched and balanced pair. Only fit props in the factory supplied pair.
If replacing more than one boom, replace one at a time to reduce the chances of mixing up connections.
For troubleshooting, you can view details of the bootloading process by connecting to the GPS2 UART on the expansion connector with a USB to UART adapter and a cable using the dronecode/PX4 UART standard pinout. The UART settings are 57600 baud, 8-N-1.
Test radio channels, arming, and disarming behavior after firmware updates to ensure radio mapping has been preserved. Incorrect radio mapping can lead to loss of control.
Context: Use these instructions to reset your UXV Samsung Tablet if you have forgotten your password and are locked out.
Please Note:
Freefly recommends that you follow these steps only in an emergency, and if you cannot ship the unit back to Freefly for a factory reset.
Performing this process will result in tablet data loss and the tablet also won’t be configured exactly the same way as it ships from Freefly Systems.
These instructions are for UXV Controller only. The instructions will be similar for Pilot Pro with modifications on what apps to install (the Pilot Pro instructions may be posted at a later date)
Reminder- you will lose any data you have saved on the tablet, including any apps you have installed. Freefly recommends fully charging the controller and tablet and keeping it connected to charger the entire process.
Turn off your tablet.
Then press Volume up button, Home button and Power button simultaneously to enter into Stock Recovery mode.
If you are facing difficulty in turning off your device, then press the power button and volume down button simultaneously on your Tab Active3 LTE. Release the volume down button as soon as your device turned off and immediately press Volume up button, Home button and Power button simultaneously.
Release Volume up button, Home button and Power button after you see Logo on screen. Your Samsung Galaxy Tab Active3 (SM-T577U) will enter into Stock Recovery mode after a few seconds. Select 'wipe data/factory reset" option. You can use volume button to select this option.
Use power button to confirm "wipe data/factory reset" option.
Select "YES" option using Tab Active3 volume button. Then, press power button to confirm "YES" option.
You have to select "Reboot system now" option using volume button.
Press power button to confirm "Reboot system now"
Wait for ~10 minutes and it should enter the device setup mode.
Follow these instructions to set up the general table settings starting with Step 3 below.
Step 4: Setup Wifi if you have access
Obtain the Freefly APK file from Freefly Systems. You must contact Support@freeflysystems.com to run through troubleshooting steps before obtaining this file
Insert a USB-C thumb drive into your laptop and then put the apk in the thumb drive.
Insert the thumb drive to the tablet (directly).
Go to the My Files app, and open the USB thumb drive.
Tap on the APK file to install.
It will likely ask for you to go to Settings to allow your tablet to install the app. Proceed to give it permissions to Install Unknown apps. Ignore warnings and click Install anyway.
Install other apps
Open the just installed Freefly App Manager.
Tap on the Apps tab at the bottom.
Make sure you are connected to Wifi.
It should show a few apps on the page.
Go ahead and install the apps like QGroundControl, Radio Configurator, NavSuite, etc. You need to tap on them and then hit the INSTALL button that shows up.
You will also have to allow permissions for Freefly App Manager to install apps.
Worlds Toughest Drone
Flight Time
Introducing the world's toughest drone: ALTA X.
We’re confident in ALTA X because we push it to the limit, and then well past - over and over again so that we know our customers will have plenty of margin in the unpredictable real world.
An effort to make ALTA X as light as possible allows ALTA X to fly MōVI Carbon (20lb payload) for 25 minutes, or a max payload for 8 minutes. Smaller payload flight times can exceed 40 minutes
Payload
ActiveBlade
ALTA X can carry up to a 35lb payload while maintaining a 2:1 thrust to weight ratio.
Four ActiveBlades reduce the motor vibrations to 1/5th the normal level. This innovative solution to reduce vibrations increases the lifetime of ALTA X and helps keep any payload stable.
Speed
Easy Deployment
Never worry about keeping up with the action again, ALTA X has a top speed of over 60mph (95km/h), just make sure that the action can keep up with ALTA X!
No assembly required! Using a clever rotating planar linkage ALTA X folds and unfolds with ease! This revolutionary feature allows ALTA X to go from case to flight within minutes, reducing setup time and minimizing the risk of misassembly on the job.
Packability
Flight Modes
ALTA X folds to 30% of its full size to fit in the same case as ALTA 8 while still being able to carry 175% ALTA 8’s payload. This case is TSA approved and has been tested to ensure ALTA X arrives to location ready to go!
High quality sensors and GPS modules allow ALTA X to maintain its position and height even in the most unfavorable weather conditions providing assurances during autonomous waypoint missions and piloted flights.
External Power
Expandability
Five user accessible power expansions allow ALTA X to power any accessories or payloads you need to do the job.
Designed with the future in mind, ALTA X is modular and easily expandable to adapt to ever changing technology. This expandability ensures that ALTA X will continue to be state-of-the-art even after years of service.
Easy Integration
External Computer
ALTA X is designed to be a platform that can be customized for any aerial need; from cinema, to forestry, and bridge inspection, ALTA X is a versatile tool ready for any challenge.
Some drone applications require real time onboard computing; ALTA X has the necessary mounts, power, and I/O so it can be upgraded with an external computer.
User repairable
Customer Service
In order to keep ALTA X in the field as much as possible all ALTA X parts can be bought as spares and replaced onsite. Of course we will still offer factory checkups and repair services should they be needed!
Like all Freefly products, ALTA X is backed by a team of experts ready to answer any questions and make sure you get the job done.
The Freefly Systems Alta X has been approved by the Defense Innovation Unit and was added to the Blue sUAS List. Freefly offers the original Alta X, Alta X (Blue Cube), and a Alta X (DIU Blue Package).
Aircraft | Blue Compliant | Hand Controller | Flight Computer |
---|---|---|---|
Uses a Black Cube flight computer. This aircraft was developed and released in 2019 prior to the DIU Blue sUAS program.
Uses an NDAA compliant Blue Cube flight computer assembled in the U.S.A. This flight computer uses identical hardware as the Black Cube (original Alta X). The Alta X (Blue Cube) aircraft also utilizes specialized firmware that has been vetted and approved by DIU.
Note: The Blue Cube is equipped with firmware that permanently disables WiFi and Bluetooth to comply with DIU Blue requirements and can only have Blue qualified firmware installed from the factory.
Note: Alta X (Blue Cube) PN: 950-00112 does not include a hand controller. You can purchase a controller separately or provide your own.
Note: Alta X (Blue Cube) and Alta X (DIU Blue Package) are NOT and will NOT be FAA Remote ID compliant from the factory.
Includes the Alta X (Blue Cube) described above, as well as a UXV tablet based controller with an RFD 900X telemetry radio. This encrypted radio sends and receives MAVlink telemetry and control inputs to/from the aircraft.
As part of the Blue sUAS program, the Alta X is under strict revision control and updates in firmware or hardware will only be released after review from DIU.
More information on DIU Blue sUAS Program can be found on the DIU Website here.
More information on how to operate the Alta X with the UXV controller can be found in this wiki article
Limitations:
Freefly RTK does not currently work on the Alta X DIU Blue Package.
FRX Pro does not currently work on the Alta X DIU Blue Package.
We are not able to upgrade your existing Alta X to a “blue system”.
We are not able to modify the Alta X DIU Blue Package in any way from how it's described here.
The Alta X DIU Blue Package is not FAA Remote ID compliant.
Important Security Guidelines for the User: To reduce the cyber vulnerability and increase the security of the system we recommend the following:
Logs: Aircraft flight logs are crucial for analysis in the events where logs are needed for technical support. However having logs enabled also pose vulnerability. If drone is intercepted mid-mission, and attacker gains physical access to drone, user can access unencrypted logs without authentication via physical access to drone, and can get current mission plan and logs. To address this vulnerability, you can set SDLOG_MODE parameter to -1 to fully disable logging.
Radio: The UXV tablet comes with password authentication to access the tablet. However the drone may still be armed using the joysticks without needing to access he tablet. To address this vulnerability, you can enable power to the radio using the installed RFD app upon every tablet login, then disable power after each use before shutting down the system.
To set up ALTA X for flight, remove it from the case, and remove the prop straps.
Unfold the booms by placing one hand on a boom and one hand on the airframe and then unfolding the boom. The boom linkage system will unfold all booms at once. Once unfolded, be sure to latch each side of the locking ring. These latches are redundant and ensure that the booms stay in the open flight position during flight.
Check that the receivers and the electrical connectors that attach to the receivers are secure.
For information on installing isolator cartridges and setting up payload mounting locations, refer to the Isolator Cartridges and Configuring GroundView or SkyView sections of this manual.
Check that the payload is secure by checking that the Toad In The Hole quick release lever is fully clamped and closed and that the payload does not slip. Check that all isolator cartridges are locked in place, especially if they have been recently replaced.
The blades should be checked for damage, including nicks and scrapes. If a propeller blade has been nicked enough that it catches a fingernail, it should be replaced. Blade bolts should be tight and blades should show little slop. There should be no slop between the propeller hub and the motor.
ActiveBlade dampers should be present and in good condition
Motors should spin freely, and there should be no grinding or scraping sound from the motor. The inside of the motor should be free of debris.
Always turn on the radio controller before powering ALTA X. Follow the battery installation guidance in the Battery Installation section of this manual for battery installation instructions.
While the Autopilot initializes, keep ALTA X as stable as possible.
If ALTA X moves during initialization, it may not boot properly and will fail to start or not maintain heading.
At the end of this process the LEDs will go from white to the user selected colors (stock colors are green facing forward and red facing toward the rear of the aircraft) indicating ALTA X is ready for arming.
Verify that there are no flight warnings by connecting to ALTA X via ALTA X QGroundControl and checking for warnings or errors. For more information, see the ALTA QGroundControl section of this manual.
Prior to start, check the surrounding area to ensure people and objects are clear of ALTA X and its props. Also ensure that there are no people or objects between the ALTA X’s takeoff location and its intended flight path.
Ensure that ALTA X QGroundControl shows all sensors are calibrated and ready for flight.
ALTA X’s props spin at a high RPM and the ends of the blades move at high speeds. ALTA X’s props can cause severe injury or death or cause damage to objects while rotating. Always ensure the area surrounding the props and ALTA X is clear of people or objects prior to starting the motors.
Do not approach ALTA X while it is armed or motors are spinning.
To start the motors, hold full low throttle and full right yaw. Ensure that all the motors are spinning. Raise RPMs slightly and move the pitch, roll, and yaw controls slightly. ALTA X should pitch, roll, and yaw as commanded due to isolator cartridge flex. Ensure that the ALTA X behaves as expected. If it does not, shut down ALTA X and ensure the propellers are installed in the correct orientation and radio settings are correct.
Do not make large yaw commands while on the ground with the Skyview landing gear installed. Large yaw commands can cause instability.
After checking flight control directions, advance the throttle directly from idle to hover throttle. Prior to takeoff, do not advance throttle stick above idle until prepared for flight as this can spool up motors undesirably. While throttling up for takeoff, do not loiter in ground effect. Once in flight, use the Mode Switch to select between Manual, Altitude, or Position Mode only after first confirming proper flight performance in Manual Mode.
Only take off in Manual Mode or let the ALTA X take off autonomously when doing a waypoints mission. Attempting to take off in Altitude or Position Modes may cause ALTA X to tip over.
Altitude Mode and Position Mode are assistive only and are not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required.
Recommended landing voltage is 44V.
Upon landing, disarm the motors by holding minimum throttle and full left yaw. This is typically done on the left radio control stick by moving it to the bottom left corner with mode 2 controllers. Disarming can only be done while in Manual Mode. Once the motors are stopped and disarmed, the Orientations Lights will dim indicating it is safe to approach ALTA X.
Only approach ALTA X after confirming that it is disarmed by verifying the Orientation Lights have dimmed.
The downwash from the propellers can disturb debris. This debris can be ingested by the propellers or motors and cause damage. After the flight, ensure there is no damage to the propeller blades and that the motors still spin freely and quietly. Take extra care when operating in areas with large amounts of debris, such as sand, dirt, or gravel.
After flight is also a good time to check the condition of battery packs. Always refer to the battery manufacturer’s recommendations for inspection and replacement intervals or requirements.
Keeping ALTA X on the payload or landing gear easily facilitates the folding process as ALTA X may be turned on the Toad In The Hole adapter while folding the propellers and booms. Release each boom latch and then fold the booms inwards. Fold the propeller blades such that the booms with grey ActiveBlade bumpers are pointed towards each other. Install prop straps to help keep props secure while placing ALTA X in the case.
Ensure the ALTA is placed in the case properly by matching the grey ActiveBlase bumpers to the colored marks in the pelican case.
Pay special attention to the external GPS, 900/868MHz Telemetry radio and optional accessories if installed (FPV camera and Tx) when putting the ALTA X back into its case
The emergency procedures listed in this section are the recommended practices for handling the aircraft in the event of an aircraft emergency. This guidance should be considered and applied as necessary.
The risk of an emergency can be reduced substantially through proper aircraft maintenance, by performing thorough inspections before and after all flights, and with careful pre-flight planning.
Emergency situations are dynamic events, and not all conditions or procedures can be anticipated or applied during the event. These procedures are not a substitute for a thorough understanding of aircraft systems and sound pilot judgment.
In general, if an emergency occurs, three basic actions can be applied to most situations:
Maintain aircraft control—Small emergencies can quickly escalate if the pilot is distracted attempting to troubleshoot the problem. Always maintain visual contact with the aircraft during an emergency to reduce the likelihood of losing orientation.
Analyze the situation—Once the aircraft is stabilized, begin to assess the cause of the emergency if practical.
Take appropriate action—In many cases, the appropriate action will be to land the aircraft as soon as possible. Always consider the safety of yourself and others before attempting to save the aircraft in an emergency.
Alarms are displayed if the flight controller determines there is a condition present that can adversely affect the safety of the flight. Alarms are indicated by the Boom LEDs quickly flashing.
Land as soon as possible when the Boom LEDs indicate a warning, and investigate the problem while ALTA X is safely on the ground. It is best practice to set the mode switch to Manual when an Alarm is observed to maintain full control authority of ALTA X.
Alarms are displayed if the flight controller determines there is a condition present that can adversely affect the safety of the flight. Alarms are indicated by the Boom LEDs flashing.
Land as soon as possible when the Boom LEDs indicate a warning, and investigate the problem while ALTA X is safely on the ground. It is best practice to set the mode switch to Manual when an Alarm is observed to maintain full control authority of ALTA X.
Position Mode may not function as expected if Position Lock has not been achieved. It is best practice to wait for Position Lock prior to takeoff, even if Position Mode is not planned to be used during the flight.
If ALTA X behaves unexpectedly, neutralize controls by centering the throttle/yaw and pitch/roll sticks and observe ALTA X. If it is still flying in an uncommanded manner in either Altitude or Position Mode, switch to Manual Mode. In most cases, unexpected behavior is due to erroneous sensor readings, degraded GPS signal reception, or compass issues.
If the unexpected behavior occurred while in Manual mode, land as soon as possible and check ALTA X QGroundControl for any warnings.
If battery cell voltage is below Alarm Voltage (all flight modes)
If battery cell voltage is below Land Voltage while flying in Manual Mode
If battery cell voltage is below Land Voltage while flying in Altitude or Position Mode
If the battery cell voltage drops below the Alarm Voltage, the boom LEDs will flash. Terminate the flight and land as soon as possible.
If the battery cell voltage drops below the Land Voltage, the boom LEDs will flash. The pilot will remain in full control of the ALTA X in all three flight modes and full throttle authority is available to the pilot in a battery exhaustion event
ALTA X will only Autoland if the battery exhaustion failsafe is set to RTL.
Recommended landing voltage is 44V.
Loss of Signal (LOS) can occur if the radio controller stops transmitting a signal, or if ALTA X is too far away to receive it. In the event ALTA X detects a LOS, it will automatically execute a Return-to-Land or Autoland as configured in ALTA X QGroundControl if using an S.Bus/S.Bus2 or DSM2/DSMX radio type. While ALTA X includes these emergency control modes, it is always recommended to attempt to regain signal link with ALTA X to keep the pilot in control of the aircraft.
Move the antenna orientation for best signal strength. Ensure the radio antenna matches the direction of the receiver antennas. Move the radio away from objects to get a clear line-of-sight to ALTA X.
Set the Mode switch to Position and the Home switch to Return-to-Land so ALTA X will continue to approach the home point if the signal is momentarily regained, resulting in higher likelihood of regaining full signal reception.
If efforts to regain control signal are unsuccessful, ALTA X will begin either the Return-to-Land and Autoland sequence as configured in ALTA X QGroundControl. Refer to the Flight Controller Modes section of this manual for additional information regarding functionality available with specific radio types.
If visual contact or FPV signal is not maintained:
An FPV Loss of Signal (LOS) can occur if the aircraft flies out of range or if it flies behind an object that interrupts the signal. Maintaining visual contact is the preferred method to re-establish control of the aircraft, either with the pilot seeing the aircraft, or by the use of a visual observer.
Yawing the aircraft can help signal reception if the body of the aircraft is blocking the line of sight between the transmitter and receiver antennas.
If FPV signal or visual contact cannot be maintained, setting the Mode switch to Position Mode and enabling Return-to-Land can be used to bring the aircraft back to signal reception range.
It is the responsibility of the pilot to see and avoid other aircraft, people, or obstacles. Always maintain direct line of sight with ALTA X during flight, use visual observers as operations require, and follow local regulations regarding see-and-avoid requirements.
Make sure not to pinch the antenna cable when installing the installing the new IO Panel
Output frequency: 2.4Ghz (2.402 - 2.481 GHz for Bluetooth 5)
Transmit power: +18dBm (63mW) max
Power consumption: Insignificant (~379mW peak consumption, which will decrease Alta's flight time by less than 0.15 seconds over a 25 minute flight for example)
This guide will lead a user through the installation and setup process for their Pilot Pro Airside kit on Alta X.
Follow this guide to install Herelink on Alta X and get it setup for flight with a Pilot Pro.
*Not shown in the picture
For any information concerning Pilot Pro, please refer to Pilot Pro Wiki.
You can use the Blank Closeout Door removed in this step to replace one which used to mount the FRX Pro's antenna.
Please note some of the images in the following instructions are shown with the Top Chassis hidden to clearly demonstrate the instructions, however you do not need to remove the top chassis to install any of the components.
Ensure that the cables on both sides of the Herelink Adapter Assembly are not pinched and run out cable relief areas of the cover.
You may want to remove the (2x) M3 x 8 Button Head Cap Screws holding the Herelink Assembly in place to get easier access to its Bind Button.
Follow these instructions to setup your Pilot Pro for use with Alta X. This step only needs to be completed once. Before continuing please make sure your Alta X has been updated to the latest FW.
Follow these instructions to set QGround Control up for the first time after receiving your AltaX + Herelink Upgrade kit. If you have accidentally uninstalled QGround Control you will have to repeat these steps.
Perform this rework on your Alta X Case to ensure the new antenna mounts fit inside the case.
Make sure to orient Alta X's antennas with the antenna slots when inserting it into the case.
Kill Switch Behavior
Any time the kill switch is activated (pulled down), all PWM signals to the motors will halt and the motors will immediately stop. If the unit is in flight it will not land gracefully.
This switch will work regardless of flight mode or other settings.
Once killed the unit must be power cycled to regain functionality. Even though QGround Control can send an 'Arm' command after the unit has been killed the unit will not spin its props.
Safely Powering Alta X + Herelink
The Alta X cannot power the Herelink when only receiving USB Power.
In order to power the Herelink as well as the drone safely hold down the 'ACTION' button on the GPS until light pattern changes (~2s). On the Freefly RTK GPS the STATUS LED will flash white once and then the POWER LED will slowly flash Red.
Pilot Pro Dials, Triggers, and Switches
As of right now only critical flight features are activated when using AltaX and Pilot Pro. These include the Mode Buttons, RTL, Kill Switch, and gimbals. We are working on updates to the FW which will allow users to have access to the Triggers and Switches found on Pilot Pro.
This includes A1, D1-4, L1/2, R1/2, S1/2, and both Rockers.
Second External Telem Port (UART)
While the new IO Panel features an additional Telem Port, Alta X's upgraded in the field will not have this feature available without extra work. More information can be found here.
HDMI Video
HDMI Video will not currently function through the QGround Control App - this is will be fixed in coming updates to the QGround Control App.
Ethernet Drone Connectivity
While you will be able to connect a computer to the ETH port on the Pilot Pro's radio module and access AltaX, you will not be able to have a true ethernet connection with the drone.
Can I fly a Alta X Herelink with a Herelink Controller?
We do not recommend flying Alta X Herelink with anything but Pilot Pro. Both the air and ground sides of the Alta X Herelink and Pilot Pro have been configured to work together and will not work with a normal Herelink. To use a Herelink Controller you would need to buy a off-the-shelf Herelink Air Unit and integrate the systems yourself.
* Optional accessories
ALTA X supports a variety of radio controllers as outlined in the Controller Integration section of the manual. A minimum of five (5) channels are required, with four (4) used for flight control, and the remaining one (1) used for mode selection. A radio controller with between six to ten channels is highly recommended to make use of Return-to-Land (RTH) and ALTA X’s other functions. It is recommended to use a radio controller with a three-way switch for Mode selection and a two-way switch for the Return-to-Launch function.
ALTA X can accommodate a variety of Lithium Polymer (LiPo) flight battery packs. Battery packs must be 12S, having a nominal voltage of 44.4 V. Only run ALTA X using two packs at a time. For additional information on expected flight duration, refer to the Performance Section of this manual.
Freefly Systems developed an FAA compliant Remote ID solution for Alta X.
For existing Alta X operators, Remote ID field upgradeable kits are for sale in the Freefly Systems Store.
Alta X - DIU Blue packages will not include our Remote ID solution per our DIU ATO.
New Alta X shipping after February 2024 will come with Remote ID pre-installed (with the exception of the Alta X - DIU Blue package).
The following options will be available in the Freefly Systems Store prior to the updated deadline of March 16, 2024.
Compliance Type | ||
---|---|---|
Any Alta X variant that wasn't manufactured with the Standard Remote ID built in (most units that were shipped before February 2024) can be upgraded to be Broadcast Remote ID compliant. Upgrade can be done by the pilots in the field.
The new IO Panel comes with an integrated Remote ID broadcast module and it simply replaces the existing one that is installed on the Alta X.
Purchase Remote ID Upgrade Kit (Alta X) (910-00790 or 910-00797) from the Freefly store.
Follow these instructions to mount and connect the new IO Panel.
Download firmware from https://freeflysystems.com/support/alta-x-support
Follow update instructions from #updating-firmware
After updating the Alta X's firmware to v1.4.0+, non-Pilot Pro users will notice an "Unknown 1:655360" flight mode in Alta QGC preventing them from arming. This is a bug that can be worked around by swapping off of whatever fight mode you are on and swapping back. We are working to have a more permanent fix for this issue released as quickly as possible.
Find the Aircraft's FAA Remote ID Serial Number. You can simply tap the Remote ID icon on your Pilot Pro QGC, or you use an app like Drone Scanner to find your drone. Serial number will formatted as the following:
Standard: 1817 9 2 ________
Broadcast: 1817 9 3 ________
Log in or Create an account at FAA DroneZone
Select the 'Drone Owners and Pilots Dashboard'
Select 'Manage Device Inventory' then 'Add Device' or 'Edit Device'
You do not need to enable WiFi on the Alta X for the RID module to broadcast. If you cannot find your Remote ID Serial Number please contact support for assistance.
Yes. We are currently building and shipping systems that were in the manufacturing process prior to Sept 16, 2023 that are not obligated to have the Remote ID capabilities at this time. See plan below for details on how to upgrade.
A broadcast module is a device that broadcasts identification and location information about the drone and its take-off location in accordance with the Remote ID rule's requirements. The broadcast module can be added to a drone to retrofit it with Remote ID capabilities. Pilots operating a drone with a Remote ID broadcast module must be able to see their drone at all times during flight.
In comparison, a "Standard" compliance means the ground control station with accurate real time positional data is required to operate the drone.
"Standard" allows BVLOS (Beyond Visual Line Of Sight) operations. "Broadcast" doesn't.
Freefly Alta X can be upgraded by the operators to become “Broadcast” RID compliant. However Alta X can only become “Standard” if manufactured or upgraded at Freefly facilities.
950-00150 Alta X part numbers are Standard Remote ID
Blue: The Remote ID transmission requirements present conflicts with DIU Blue's Authority to Operate security requirements. Consequently, the Alta X DIU Blue Package does not currently come with Remote ID enabled.
NDAA Compliance: All Alta X DIU Blue Package drones are compliant with NDAA requirements, which do not impose the same security constraints as DIU Blue's Authority to Operate. To align with these standards, all Alta X DIU Blue Package drones will be equipped with Remote ID hardware in the future, though it will be defaulted to OFF. This ensures readiness for potential future activations while adhering to current security guidelines.
Existing Futaba variants can purchase the upgrade kit and be Broadcast compliant.
There will be "Standard" versions available to buy without Pilot Pro in the future. However you will be responsible to provide your own Remote ID compliant GCS with your Futaba or other RC controller to be able to operate. If GCS doesn’t send position info, you will not be able to arm.
We will build and stock 950-00151 versions of Alta X for customers outside of the US that are not required to have Standard Remote ID to arm.
If you have strict requirements to have both the Futaba and Standard RID on your Alta X, please reach out to support@freeflysystems.com to discuss options. We can offer shipping standard RID licensed aircraft with Futaba, however you will be responsible to provide your own Remote ID compatible GCS to be able to operate. This GCS, most likely through the use of FRX Pro, needs to send its standard remote ID packets that include its real time position data to Alta X. If GCS doesn’t send position info, you aircraft won't be allowed to arm (Designed per FAA requirements).
Technical Specifications of the UXV Navtab with RFD900x
These are the radio's technical specifications, and features may or may not be implemented
Gimbal Ready Alta X systems equipped with the Payload Vibration Damper (Alta X) have interchangeable isolator cartridges. The Payload Vibration Damper ships with 30A isolators, but they are available in different durometers.
These options give the user the ability to fine tune vibration damping performance for different payload weights or ambient temperatures. Durometer options include 30A, 40A, and 50A. The durometer of a cartridge is shown in recessed lettering on each of the O-rings. Use the chart below as a general guide choosing the correct isolator cartridges for your payload.
* Depends on Payload Sensitivity - run as many isolators as possible.
** Mix and Match different durometers to attain desired vibration isolation qualities. When shooting video it is desirable to run the softest isolators possible without bottoming out the isolators.
*** 60A isolators should be used when the most rigid connection between payload and aircraft is desirable.
Flight testing may be required to determine the optimal isolator for a given setup.
ALTA X allows for the installation of a radio control system. S.Bus, S.Bus2, DSM2, and DSMX receiver types are supported. Some ALTA X emergency control modes (Return-to-Land and Autoland) may vary depending on the type of radio. Refer to the Flight Controller Modes section of this manual for additional details.
To integrate Pilot Pro on Alta X use the integration instruction found here.
For more details on Pilot Pro refer to its wiki!
ALTA X can be used with a variety of radio controllers. Different radio controllers can map functions to different channels, so properly mapping controller channels to ALTA X functions is an important step before flying. Radio calibration and channel mapping are performed using the ALTA QGroundControl program or app.
If you are uncertain about your radio channel mapping, obtain assistance from an experienced pilot or from Freefly Customer Support.
Calibrating any compatible radio is done using the ALTA QGroundControl app. This only needs to be done when using a new radio with the ALTA X; ALTA X that were bought with a radio have already gone through the Calibration and Mapping procedures.
Power the ALTA X by plugging in a USB-C cable to the expansion port.
The expansion port is located under the closeout between booms 1 and 2 .
Once connected, the ALTA X electronics will be powered and you may turn on the radio.
Open the ALTA QGroundControl program, navigate to the Radio tab in the Vehicle Setup menu, and then initiate the radio calibration.
Set the transmitter mode radio button that matches your radio configuration (this ensures that QGroundControl displays the correct stick positions for you to follow during calibration).
Move the sticks to the positions indicated in the text (and on the radio image). Press Next when the sticks are in position. Repeat for all positions.
When prompted, move all other switches and dials through their full range (you will be able to observe them moving on the Channel Monitor).
Press Next to save the settings
Make sure to reset all trims and subtrims to zero before continuing with calibrating and mapping your radio.
Radio channel mapping is accomplished with the ALTA Qgroundcontrol App. Prior to mapping channels, ensure your radio controller and receivers are properly installed and calibrated. Refer to the Radio Installation section of this manual and your radio controller’s documentation.
Power the ALTA X by plugging in a USB-C cable to the expansion port.
The expansion port is located under the closeout between booms 1 and 2
Once connected, the ALTA X electronics will be powered and you may turn on the transmitter.
Open the ALTA QGroundControl program, navigate to the Flight Mode tab in the Vehicle Setup menu for access to the channel mapping.
Channel mapping can be customized by the user on this menu to fit their preferences. Below is a quick description of the items mapped to the transmitter and suggested channels for each mapped item.
Customers are advised to use tablets, laptops, or desktops to perform the Radio Calibration and Channel Mapping; some mobile devices may crop these menus.
The following functions can be mapped to radio controller channels. These are found in the Radio section of the Configurations menu in ALTA QGroundControl. Each function is also represented by a chart that responds to control input allowing for quick verification of mapping settings.
Controller
Use this to select the appropriate receiver. The following guide is compiled for convenience. For complete specifications and which mode will work with your receiver, refer to your radio controller or receiver manuals.
DSM2/DSMX are typically used by Spektrum controllers
SBUS is typically used by Futaba controllers
Pitch/Roll/Yaw/Throttle
The Pitch, Roll, Yaw and Throttle controls are the basic flight controls and are mapped to the two radio controller sticks.
Mode
The required Mode Switch selects between the three different flight modes: Manual, Altitude, and Position. A three-position switch is recommended to select the three different modes. However, a two-position switch may be used, but will only allow for selecting between Manual Mode and (depending on radio controller mixes) either Altitude Mode or Positon Mode . Other modes are available, but should be only used by experienced operators.
Return to Home Switch
The optional Return to Home Switch selects between the different Return-to-Land (RTH) functions. At minimum a two-position switch is required for the Home Switch functions to select between RTL Off, and initiate RTL functions.
The following radio channel mapping configurations are recommendations only and can be set in ALTA QGroundControl. Depending on exact radio models, these may help as an initial configuration. However, it is up to the pilot setting up ALTA X for flight to determine if these settings are appropriate.
Futaba 14SG/8FG
Spektrum DX18
An overview of the pre launch testing Freefly completed to ensure Alta X performs to spec
The team at Freefly comes from a cinema background and spent the first decade of their career onset filming in some of the most demanding circumstances available. It was from this period and all the failures we endured (at the worst times) that we developed the testing philosophy that drives Freefly today.
We like to test early, test frequently, and test harder than any of our customers will. We push our drones and gimbals to the limits (and often destroy them) in order to make sure you can rely on them when time is short and the light is beautiful.
We sweat the details so you don't have to!
Freefly typically follows an product development workflow with the following stages. We have developed this process over the last decade to help ensure adequate effort goes into each product we build at each of the critical stages of development.
This is a very rough prototype that the team will build over the course of 1 -2 weeks to quickly derisk any of the items that we are very worried about with our design intent. For Alta X this was a flat plate carbon chassis mule that we built over the course of a week designed to ensure flight performance and tuning.
This is the first prototype that is based upon our intended design. Often times we will rapid prototype parts and machine parts for this round in house. At this stage we are not sure if many of our designs will work and we want to get them built and testing as quickly as possible to figure where we missed. All the materials should be fully functional and testable.
For this stage we mainly want to know if we can build a machine that meets all functional requirements
We usually build 10 to 20 units during the EV test period
This stage will feature one configuration that worked well from our EV testing period and be built with hard tools with production processes that are being refined for mass production.
We want to know if we can build machines that meet all functional, and cosmetic requirements
This might be 20 to 50 units
Now we are scaling! Can we build machines that achieve our functional, cosmetic, and manufacturing metrics consistently? Are we able to build machines that repeatedly delight our customers in a systematic fashion?
100+ units
Context: Use this process when an Alta X flight controller profile gets deleted and the aircraft needs to be reprogrammed with the Alta X OEM profile, firmware, and parameters. A symptom of this usually is Blue boom LED's and loud motor beeping.
Before proceeding with the steps below, ensure you have downloaded the required files:
Download the latest Alta X QGC Version:
Go to the designated source and download the latest version of onto your laptop or desktop.
Prepare the Drone for Parameter Loading:
Without batteries plugged in, connect your Alta X to the computer using a USB-C cable via the expansion port and
Once connected, the drone should appear on your computer's desktop as a hard drive.
Download any existing Tempcal and Parameter Alta X Files from the aircraft:
From your drone's hard drive in the computer, locate the Tempcal file (e.g., 491625-tempcal.params) and the AltaX.Params file
Download both these files to your desktop for easy access during the configuration process.
Update Firmware with Alta X Firmware:
NOTE: Alta X and Alta X Blue get different parameters. Ensure you download the correct firmware for your hardware version
Follow the to update your drone's firmware.
Standard Alta X firmware as applicable
Blue Alta X firmware as applicable
Once the firmware update is complete, reboot the drone before proceeding.
Reset Alta X Parameters using the guide in
Load Tempcal File (e.g., 491625-tempcal.params):
Access the parameter settings on your drone control software once more.
Use the tool button to load the Tempcal file (e.g., 491625-tempcal.params) to your drone.
After loading, reboot the aircraft to apply the Tempcal file settings.
Recalibrate All Sensors:
Now that all files have been uploaded, it's essential to recalibrate all sensors for accuracy.
Follow the provided in your drone's manual or the QGroundControl software.
Always remember to select "No Rotation" for your External Compass Orientation.
Final Reboot:
After recalibrating the sensors, perform a final reboot of the aircraft to ensure all changes take effect.
Your Alta X should now be configured back to normal with the updated parameters and firmware. Always double-check the settings and ensure the calibration process is done correctly for safe and optimal flight performance.
The Freefly DC-DC converters draw power from the 50V battery bus and provide up to 120W of 5V or 12V DC. The converters utilize off the shelf converters mounted on a custom heatsink with and a custom capacitor board to provide better transient response.
Note 1: Above ambient temperatures of 50C, some current/power derating will be necessary.
The DC-DC converter output is isolated, so the "return" power connection is not tied to the AltaX ground. If you are connecting to a data link in AltaX (such as UART), you must run the ground line in the data connection (ie. pin 6 in UART connection or pin 4 of CAN).
Failure to properly ground modules connected to the isolated DC-DC converters may result in spotty or non-functional connection.
The converter mounts onto any unused closeout. Installation steps:
The internal XT30s of the power expansion board share the same 10A fuse as J1.
The power converter will power on automatically as soon as the battery is connected on the aircraft.
The power converter will power on automatically as soon as the battery is connected on the aircraft.
The converters have overcurrent & short circuit protection, and will restart automatically upon clearing of overcurrent/short circuit condition.
Caution! The DC-DC converter heatsink may get very hot when drawing power.
Here are the test Freefly ran prior to launching Alta X
All the tests that were completed (except for a few confidential ones) during the development of Alta X are listed in a
This overview sheet will tell you key information about the test, who completed the test, and the test result. If you want to understand the test in more detail you can review each test plan individually by following the link for each test.
Before the launch of Alta X the Freefly team completed over 500 hours of flight and simulated flight testing. The summary and details for these flights can be .
For these test the team at Freefly pushed the Alta X harder than we think a customer would ever imagine. This meant stressing the machine to the limit in order to ensure robust performance in the field.
Freefly also leveraged a small group of external beta testers during this phase to ensure they were pleased with the Alta X performance. We did have a difficult time getting the test machines back from several of these testers (Ahem Pat Weir) 😂
Symptom | Possible Causes | Action |
---|
What is it? — There is a hardware defect combined with a PX4 bug that applies to all blue and black cube flight controllers where a very specific set of power conditions can occur within the memory chip of the flight controller, causing it to become corrupted. When this happens, the parameters become reset.
How to prevent? — Make sure that the unit never gets a quick power on/off, but whenever you connect the unit to USB power, etc, to always allow sufficient time for it to boot. Then if you power it off, wait 10-30 seconds before re-starting to avoid the issue.
Issue: The PX4 version that is used with the Alta X does not have smooth motion planning for autonomous missions. This can lead to sudden jerky movements that make capturing data with Lidars very challenging.
Solution: Actual solution to this requires a major upgrade for the PX4 firmware for Alta X. This has been in our roadmap and we are still working on it.
Workaround:
Survey missions in QGC creates waypoints that have sharp turns. Combined with the lack of smoothing at motion execution of the flight controller, it creates abrupt motions.
Potential workaround for this issue is to manually create waypoint missions with some segments to create curves. See the image below. You can test the following with your setup:
Create a waypoint mission that has straight segments, 90 degree turns, and then another straight segment, like a normal survey, pic attached. Make sure the short segments are at least 20m apart.
Set the MIS_YAW_ERR parameter to 90, and setting NAV_ACC_RAD to 3. You can increase NAV_ACC_RAD to see how it affects the flight behavior.
! As always take extreme caution when adjusting parameter settings. !
We recommend that your once a year or every 1000 flight hours.
Spare or replacement parts are available for sale separately at . Please refer to the store for a current listing of all available spare parts.
Autopilot and system component firmware is updated via the USB expansion port on ALTA X located in the chassis closeout between booms 1 and 2. To update firmware download the latest and follow the instructions below.
Item | Qty | |
---|---|---|
How to fix? Follow to reset back to default firmware and parameter profiles.
Alta X
N
Futaba / User Supplied
Black Cube
Alta X (Blue Cube)
Y
User Supplied
Blue Cube (F4)
Alta X (DIU Blue Package)
Y
UXV Navtab w/ RFD900
Blue Cube (F4)
1.
Aircraft
REMOVE from case
2.
Prop straps
REMOVE
3.
Booms
UNFOLD
4.
Ring latches
LOCK
5.
Receivers and wiring
CHECK
6.
Isolator cartridges
SELECT and INSTALL as
necessary
7.
Payload mounting location
CONFIGURE as necessary
1.
Payload
SECURED
2.
Isolator Cartridges
VERIFY SECURE
3.
Propellers
CHECK CONDITION, VERIFY TIGHT
4.
Propeller Hubs
VERIFY SECURE
5.
Motors
CHECK CONDITION
6.
Radio Controller
ON, VERIFY TX BATTERY
7.
(FUTABA/SPEKTRUM) Radio Controller Model
SELECT MODEL
8.
Aircraft Placement
AWAY from people and obstacles
9.
Battery Pack Voltage
VERIFY ABOVE 48V
10.
Battery Packs
SECURE
11.
Battery Leads
CHECK CONDITION and CONNECT
12.
Aircraft
KEEP STATIONARY
13.
Flight Controller
Allow to INITIALIZE
14.
Blade Dampers
VERIFY 8 PRESENT AND IN GOOD CONDITION
15.
Orientation Lights
VERIFY SOLID COLORED, DIM
16.
Receiver
VERIFY BOUND
17.
ALTA X QGroundControl
CONNECT
VERIFY NO WARNINGS
19.
Compass Calibration
CALIBRATE if required
20
Radio Control Range Check
AS REQUIRED
1.
Prop Area
CLEAR
2.
Mode Selection
MANUAL
3.
(FUTABA/SPEKTRUM) Home Switch
UP/OFF
(PILOT PRO) Kill Switch
UP/OFF
4.
(FUTABA/SPEKTRUM) Radio Controller
VERIFY CORRECT MODEL
5.
Telemetry (if equipped)
CHECK OPERATION
6.
GPS Signal
LOCKED (GREEN LIGHT)
7.
ALTA X
CHECK ORIENTATION and ARM
8.
Orientation Lights
VERIFY USER-DEFINED COLOR
9.
Motors
START, and VERIFY OPERATION
10.
Flight Controls
VERIFY CORRECT
11.
Throttle
AT MINIMUM
1.
Mode Switch
MANUAL
2.
(FUTABA/SPEKTRUM) Home Switch
OFF
3.
ALTA X
LAND
4.
Motors
DISARM and STOP
5.
Orientation Lights
VERIFY LIGHTS DIM
6.
ALTA X QGroundControl
CHECK for warnings
7.
Batteries
DISCONNECT AND REMOVE
8.
Radio Controller Power
TURN OFF
9.
Aircraft Condition
INSPECT
10.
Motor and Prop Condition
INSPECT
11.
Battery Condition
INSPECT
1.
Propellers
FOLD and PLACE inline with boom
2.
Boom Latches
UNLOCK
3.
Booms
FOLD
4.
Prop Straps
INSTALL
5.
Payload
REMOVE
6.
ALTA X
INSERT into case
1.
Mode Switch
MANUAL
2.
ALTA X
LAND as soon as possible
3.
ALTA X QGroundControl
CHECK IN APP WARNINGS
1.
Control Inputs
NEUTRALIZE
2.
Mode Switch
POSITION
3.
Yaw
NOSE AWAY
4.
Roll
VERIFY DIRECTION
1.
Control Inputs
NEUTRALIZE
2.
Mode Switch
POSITION
3.
ALTA X
LAND as soon as possible
1.
Boom LEDs
SLOW FLASH
2.
ALTA X
LAND as soon as possible
1.
Boom LEDs
SLOW FLASH
2.
ALTA X
LAND as soon as possible
1.
Boom LEDs
SLOW FLASH
2.
ALTA X
WARNING popup in ALTA QGroundControl
3.
Pitch and Roll
MANEUVER away from people or objects
1.
Controller Battery
CHECK
2.
Controller Antenna
REPOSITION
3.
Mode Switch
POSITION
4.
Home Switch
Return-to-Land
1.
Control Inputs
AS REQUIRED
2.
Visual Contact
MAINTAIN
3.
ALTA X
POSITION for optimal signal reception
1.
Mode Switch
POSITION
2.
Home Switch
RETURN TO HOME
3.
Throttle
AS REQUIRED
1
1
Herelink Assembly
2
2
Antenna Assembly
3
1
Herelink Adapter Assembly
4
1
Herelink Adapter Cover
5
1
Servo Connector Cover
6
2
Heat Shrink
7
8
Bolt M3 x 8 SHCS Dacromet
8
3
Bolt M3 x 8 TF FHCS
9
2
Zip Tie 200mm
10
1
Case Modification Fixture
11
1
T8 Torx Driver
12
3
Adhesive Cable Tie Mount*
Vibration Isolation System
2.0mm Hex Driver
Skyview Landing Gear*
Alta X Spare Parts
2.5mm Hex Driver
Futaba Radio Controller*
Alta X QuickStart Card
3.0mm Hex Driver
FRX - Alta X Ready*
Alta X Product Card
Pilot Pro*
Alta X Travel Case*
1.
Adjust the battery tray to fit your preferred batteries by loosening and adjusting the (8x) M3x6 SHCS fasteners securing the two movable tray components.
Ensure the fasteners are tightened after the trays have been adjusted.
2.
Place your batteries on the tray and secure them with the four battery straps.
See the Appendix for minimum battery requirements.
1.
Ensure you have completed the necessary preflight checks for ALTA X
2.
Turn on your transmitter
Review the transmitter integration section of this manual for a step by step guide to installing your transmitter if this has not been done
3.
Plug the batteries into ALTA X using the built-in battery leads.
Only power ALTA X with batteries when intending to fly; make sure you are in a safe takeoff location and adhering to your regions UAV regulations.
4.
Once the batteries are plugged into ALTA X and you are in a safe takeoff location arm ALTA X by holding full low throttle and full right yaw. Once armed the all motors will spin up.
5.
After ALTA X is armed you may takeoff and use
We recommend quickly checking ALTA X’s orientation before takeoff by giving small roll/pitch inputs.
Ensure you are monitoring ALTA X’s voltage during flight to prevent low battery situations.
6.
Once the flight is complete, return to a safe location to land ALTA X. After landing disarm ALTA X by holding minimum throttle and full left yaw.
7.
Unplug the batteries after disarming ALTA X and then turn off the remote controller.
8.
Detailed procedural steps can be found in the ‘Procedures’ section of this manual; ensure that you have reviewed and understand each step before flying.
Alta X - Remote ID Upgrade Kit (910-00790 and 910-00797)
Broadcast
This is for anyone who has an Alta X variant that wasn't manufactured with standard Remote ID built in. (Most units that were shipped before February 2024). Upgrade can be done by the pilots:
Buy and install the new IO board
Update Alta X PX4 firmware to latest
Alta X (950-00150) variants shipping after February 2024
Standard
New Alta X (950-00150) shipping after February 2024 will come with Remote ID pre-installed (with the exception of the Alta X - DIU Blue package).
Manufacturer:
RFDesign
Model/Part Number:
RFD900x-US
NDAA Compliant
Yes
Blue Cleared
Yes
FCC Acceptance Number:
2ADLE-900UX2
Frequency Band:
915 MHz
902 MHz - 928 MHz
Global ISM Band
Radio Configuration:
2x2
Diversity Switched
OTA Encryption
AES-128-CTR
Max RF Power at SMA port
1W
+30dBm
RF Power Control
1dB steps
+/- 1dB @=20dBm typical
Receive Sensitivity
-111 dBm at 12kbps
-105 dBm at 64kbps
-98 dBm at 200kbps
Temp. Range:
-40 to +85 deg C
Function
Channel Number
Direction
Pitch
2
Normal
Roll
1
Normal
Yaw
4
Normal
Throttle
3
Reverse
Mode Switch
5
Normal
Home Switch
6
Normal
Function
Channel Number
Direction
Pitch
3
Reverse
Roll
2
Reverse
Yaw
4
Reverse
Throttle
1
Normal
Mode Switch
6
Reverse
Home Switch
7
Normal
1. | Set aircraft on a stable level work surface.During disassembly, take care to note the location of fasteners and orientation of parts, as this will greatly help with reassembly. |
2. | Remove the following fasteners (reference drawing below):
|
3. | The top chassis can now be removed from the machine, and the inner cover lifted off to access the enclosure area. |
4. | To reassemble, refit the enclosure making sure it is well seated and there are no trapped wires. |
5. | Attach the power connector with (x2) M3x10 bolts before reseating the top chassis, making sure the orientation is correct. | ` |
6. | Reassemble the remaining chassis fasteners. Take care to align the fasteners correctly. It is recommended to get all fasteners started before torquing. Loctite 243 or equivalent should be used in all these locations. |
1. | Remove the top chassis as detailed in the previous section. |
2. | Trace the wires from the boom to be replaced. There will be three cables from each boom, a power cable, an LED cable and a motor control cable. Carefully unplug each, taking care to note the locations for when the replacement boom is fitted. |
3. | Remove any strain relieving zip ties. Take care to note the correct wire routing. |
4. | Loosen the three M4 bolts that clamp the boom, and carefully slide the boom out of the hinge. |
5. | Remove the corrugated tube from the old boom, noting its location on the harness. If being reused, remove the ActiveBlade assembly from the old boom. |
6. | Prepare the new boom assembly by attaching the corrugated tube. |
7. | Feed the wiring harness through the hinge, slide the boom into place and temporarily secure by lightly tightening the hinge bolts. |
8. | Connect new boom’s three cables, route the wires and secure with strain relief zip ties where needed. Make sure the corrugated tube is positioned correctly and strain relieved to the chassis securely. |
9. | Replace the enclosure cover and reinstall the top chassis per the previous section. |
10. | The booms on ALTA X are clocked to improve yaw authority. Replacement booms are supplied with alignment cards to allow accurate clocking of the motors. Their use is covered in this video. Before aligning the motors, completely remove the M4 boom clamp fasteners, and apply Loctitie 243 or equivalent. Once aligned, torque fasteners. |
11. | Reattach the ActiveBlade assembly as described in previous section. |
Spec | 12V | 5V |
Operating input voltage range | 18-75VDC | 18-75VDC |
Output voltage | 12VDC | 5VDC |
Max output current (Note 1) | 10A | 24A |
Max output power (Note 1) | 120W | 120W |
Recommended max output power | 100W | 100W |
Operating Temperature | -40C to 85C | -40C to 85C |
Input power connector | XT30 (Male Pins) | XT30 (Male Pins) |
Output power connector | XT60 (Female Sockets) | XT60 (Female Sockets) |
Weight with Wires/ Plugs | 105 grams | 105 grams |
This section covers technical details of ALTA X.
Please read this disclaimer and warning carefully and review the ALTA X Aircraft Flight Manual (AFM) prior to flight. If you have any questions, please contact support@freeflysystems.com prior to using the ALTA X. You can review the most current version of this manual on the ALTA X Support Page. By using ALTA X, you acknowledge that you have read, understand and agree to this disclaimer. You agree that you are solely responsible for your conduct while using ALTA X, and for any direct or indirect consequences that may result from its use. You agree to only use ALTA X for proper purposes that are in accordance with local and airspace rules and regulations.
ALTA X is not a toy and should be operated with extreme care, as improper operation can cause damage to property, serious personal injury or death.
As with any multi-rotor aircraft, ALTA X is a complex and technical machine. Novice pilots should invest sufficient time on a flight simulator and seek training from an experienced pilot prior to operation. The ALTA X Aircraft Flight Manual and a flight simulator are no substitute for training with an experienced pilot, particularly when it comes to learning how to safely operate ALTA X. Novice pilots should never fly without the supervision of an experienced pilot.
Always check ALTA X and its components prior to operation.
Always maintain a safe distance from ALTA X when in use.
Never attempt to touch ALTA X when the propellers are moving.
Never fly ALTA X over or around people, power lines or other aircraft.
Never fly with any propellers that have visible imperfections or damage.
Always keep children and animals a safe distance away from ALTA X when in use and when changing configurations.
Only use propellers supplied by Freefly Systems that are designed for use on ALTA X.
Always remove the propellers or power ALTA X using a low power source when making a change to the configuration of ALTA X to prevent propeller strikes in the event of unintentional motor starts.
Always remove the configuration jumper when making changes to the configuration of ALTA X.
Always test ALTA X with the propellers removed to make sure that the motors are spinning in the correct direction and that the motor assignment is correct with respect to the Autopilot flight controller. If you have either of these wrong, the ALTA X will be uncontrollable and dangerous.
It is your responsibility to perform a full system check of ALTA X prior to every flight.
It is your responsibility to learn how to safely operate ALTA X and to adhere to all applicable rules and regulations.
Fly at your own risk.
ALTA X is a tuned system with custom components selected for each application. Modification, removal, or substitution of ALTA X components will void the warranty and can lead to unsafe operating conditions.
IN NO EVENT SHALL FREEFLY BE LIABLE TO BUYER FOR ANY INDIRECT, CONSEQUENTIAL, PUNITIVE, INCIDENTAL, OR SPECIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF ALTA OR FROM LOSS OF USE, DATA OR PROFITS (HOWEVER CAUSED AND UNDER ANY THEORY OF LIABILITY), EVEN IF FREEFLY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN NO EVENT SHALL FREEFLY’S LIABILITY FOR A PRODUCT (WHETHER ASSERTED AS A TORT CLAIM, A CONTRACT CLAIM OR OTHERWISE) EXCEED THE AMOUNTS PAID TO FREEFLY FOR SUCH PRODUCT. NOTWITHSTANDING ANYTHING HEREIN, IN NO EVENT SHALL FREEFLY’S LIABILITY FOR ALL CLAIMS ARISING OUT OF OR RELATING TO THIS AGREEMENT EXCEED THE AMOUNTS PAID BY BUYER TO FREEFLY FOR PRODUCT IN THE LAST TWELVE (12) MONTHS. IN NO EVENT WILL FREEFLY BE LIABLE FOR COSTS OF PROCUREMENT OR SUBSTITUTE GOODS BY BUYER. THE LIMITATIONS SET FORTH HEREIN SHALL APPLY TO ALL LIABILITIES THAT MAY ARISE OUT OF THIRD-PARTY CLAIMS AGAINST BUYER. THESE LIMITATIONS SHALL APPLY NOTWITHSTANDING ANY FAILURE OF ESSENTIAL PURPOSE OF ANY LIMITED REMEDY. Freefly shall not be liable for damages or injuries incurred directly or indirectly from the use of ALTA X including, but not limited to, the following situations:
Failure of the operator to follow proper instructions and safety warnings found at www.freeflysystems.com.
Failure of the operator to understand and operate the aircraft within the operating limitations described in this manual.
Failure of the operator to follow onboard safety warnings while using ALTA X.
Failure of the operator to follow and comply with local rules and regulations.
Failure of the operator to follow and comply with the local communications law.
Failure of the operator to inspect ALTA X and its components prior to operation.
Failure of the operator to properly maintain and/or service ALTA X through an authorized Freefly Service Center with genuine ALTA X parts.
Use of third-party products on ALTA X.
Use of ALTA X in a physically or mentally impaired capacity.
Use of ALTA X without sufficient training.
Use of ALTA X in unsafe conditions, including but not limited to, bad or severe weather, such as rain, wind, snow, lightning, dust storms, etc., or in areas of magnetic or radio interference, such as power stations, broadcasting and cell phone towers, government prohibited airspace, etc.
Improper operation, misjudgment or risky behavior while using ALTA X.
Infringement of third party data, audio, or video rights recorded when using ALTA X
In order to maintain control of personal or mission critical information, there are some precautions and best practices that can be used. This information is being included in our documentation as part of our DIU Blue Certification.
WiFi can allow an attacker to remotely access the Alta X. This includes, but is not limited to:
Downloading Flight Logs
Collecting live telemetry
Uploading and Downloading Missions
Controlling the aircraft.
Consider a user with WiFi access to have physical access to the aircraft.
By default, WiFi is not enabled on Alta X. WiFi is permanently disabled on Alta X Blue.
Alta X ships with a default password for all aircraft. If you must use WiFi, it is imperative to change the password immediately
Even with a secure password, a sophisticated attacker could still bypass the WiFi encryption, so do not leave WiFi enabled for longer than necessary.
While the radio link is encrypted, anybody with the ground radio can be considered to have physical access to the aircraft, and all of the above precautions apply.
By default, Alta X records flight logs(from arm to disarm) to internal storage. These logs include information such as:
Flight path
Time of flight
Takeoff location
Automated mission information (waypoints)
These logs can be pulled from the aircraft if you have physical access, without any user authentication.
One option to limit exposure is to frequently back up and remove logs from the aircraft.
Logging can also be completely disabled by setting the following 2 parameters:
SDLOG_MISSION: 0
SDLOG_MODE: -1
Note: Freefly Systems uses dataflash logs to diagnose Alta X issues. Disabling logging may increase turnaround time for technical support and in some instances, prevent RMAs from being issued.
Freefly Systems recommends keeping Alta X physically secure at all times. If you suspect that the aircraft has been compromised, please consult these links to flash the latest firmware and reset the aircraft to factory defaults.
Freefly Systems utilizes signed and encrypted firmware packages. The firmware of the flight controller cannot be modified without erasing all of the firmware, and Freefly firmware cannot be loaded if the flight controller has been tampered with.
If you suspect the aircraft has been compromised, you can also send your aircraft to Freefly Systems for service, although standard service fees apply.
Downloadable STEP file available - Alta 8
Intro to ALTA 8 Pro
Locate Bay 3 (IO Bay) - this will already have an IO Assembly installed.
Remove the pull door and undo the (2x) M3x 6 Button Head Screws. Set these aside for later
Unplug the ZPD connector going to the IO Panel, then gently push on the pack of the panel to uninstall it from AltaX. You may need to squeeze the plastic housing a bit from the top/bottom.
Install the new IO Panel in the open bay so the USB connector is on the side closest to Bay 4. You should feel it 'click' into place.
Reinstall (2x) M3x 6 Button Head Screws and then connect the ZPD Connector to the new IO Panel and reinstall the pull door.
Locate Bay 8 - this will be the bay closest to the RTK GPS and the FRX Pro.
Undo the (2x) M3 x 8 Button Head Screws and remove the Blank Closeout Door. Set these aside for later.
Undo the fasteners mounting the FRX Pro, unplug all cables connected to the FRX Pro, then remove it from Alta X. (Mounting fasteners are located just underneath the FRX Pro - not shown in the image)
Remove the FRX Pro antenna and antenna cable from its bay door.
Find the Antenna tube (they will be on the back of the AltaX). Undo the M3 x 8 Flat Head Screw holding the antenna tubes and clip in place; then remove the tubes and clip from the Alta X. Be gentle so you do not damage the Futaba's antenna.
Locate Bay 6 (Radio Bay) - this will be the bay closest to the radio tube you just removed.
Remove Radio Bay's pull door and gently free the Futaba Radio from the adhesive tape.
Unplug all cables connected to the Futaba Radio and remove the Futaba from Alta X.
You will no longer need the following and may store or dispose of them as you wish: FRX Pro, Futaba, Antenna Clip, Antenna Tubes, FRX Pro Antenna, FRX Pro Antenna Cable, and Blank Closeout Door.
Locate Bay 8 - you will have already uninstalled the door for this bay in a prior step.
Take the Herelink Adapter Assembly and install it in the FRX Pro Mounting holes using (2x) M3 x 8 Flat Head Threadforming screws. Use the included driver to install these.
Connect both of the cables previously installed to the FRX Pro to the Herelink Adapter Assembly.
Take the Herelink Assembly and thread all cables through Bay 8 and then install the Assembly using the (2x) M3 x 8 Button Head Screws previously removed.
Run the 10-Pin GH cable from the Herelink Assembly to the Herelink Adapter Assembly and install it in the open connector on the PCBA.
Place the Herelink Adapter Cover onto the Herelink Adapter Assembly as shown and press down, you will feel the cover snap onto the rest of the assembly and hold itself in place.
Use the remaining M3 x 8 Flat Head Threadforming screw to secure the Cover onto the Herelink Adapter Assembly.
At this point there will be three connectors that are not yet connected; one servo connector and two coax antenna cables.
Take the servo connector and route it to Bay 6 (Radio Bay).
Undo the (2x) M3 x 8 Button Head Screws holding in the radio bay. Set these aside for later.
Push on the back of the Radio Bay to pop it out of the side panel, this will make it easier to perform the following steps.
Push the Servo connector through the grommet on the back of the Radio Bay. Then connect it to the male servo connector already present in the Radio Bay.
Install the Servo Connector Cover to prevent the servo connectors from coming apart. Then tuck all cables back into the Radio Bay
Push the Radio Bay back into the side panel, you should feel a click once the side panel's retention features engage. Then reinstall the (2x) M3 x 8 Button Head Screws to fully secure the radio bay.
Reinstall the Radio Bay's pull door.
Take the two remaining coax cables and find the longer of the two.
Run the longer of the antenna coax cables from the Herelink to Booms 1's wire pass thru. Run the shorter coax to Boom 3's wire pass thru. Make sure both coax's extend out of the wire pass thru's as shown in the images.
Take one of the Antenna Assemblies and slide one of the heat shrink tubes over the antenna cable.
Connect the antenna cable to the coax cable accessible the wire pass thru on Boom 1.
Take a hot air gun and affix the heat shrink over the coax connectors. This will secure the connection and provide weather sealing to the connectors.
Mount the Antenna Assembly to the 32x32mm accessory mount near the cable pass through using (4x) M3 x 8 Socket Head fasteners.
Tuck the antenna cable back through the wire pass thru, then use one of the included zipties to secure the cables as shown. Clip the end of the zip tie once secured.
Repeat for the Antenna Assembly connection and mounting steps with the remaining parts for Boom 3.
Turn on the Alta X and Pilot Pro.
Locate the Bind button on both the Alta X and Pilot Pro.
Press and hold the Bind button on the Alta X's Herelink until the light on the Herelink slowly starts to flash.
Press and hold the Bind button on the Pilot Pro's Herelink.
Upon successful binding the lights on both radios will become solid green.
To confirm successful binding, open up QGround Control and check to see that Pilot Pro is getting aircraft data.
Turn on Pilot Pro, then navigate to the app screen. This can be done by swiping up on the
Uninstall Auterion Mission control and FF Updater by long pressing the app Icon and then selecting uninstall. They should now no longer appear on the home screen. (Shown in RED)
Make sure the Pilot Pro is connected to WiFi
Using the Pilot Pro's Tablet camera take a photo of the QR Code and approve the download.
Once downloaded, find the .apk file in the devices 'Files'. DO NOT install the .apk via the browser. Then tap the .apk file and install it, if there are pop ups asking for permission select 'Allow'.
Select the Freefly Updater Icon on the home screen, once the app is opened go to the settings menu.
Tap on Repositories and then make sure both the Pilot Pro and AltaX toggles are 'on'. Make sure to turn off the 'Astro' toggle.
Return to the Freefly Updater's main page and download QGround Control. If there are pop ups asking for permission select 'Allow'.
Make sure to pin them to the home screen. Do this by going to the home screen, swiping up from the bottom of the screen to get to the App library. Then tap and hold the apps you would like to move to the home screen, an option should appear saying 'Add to Home', select this for each of the apps.
Open QGround Control and navigate to the Application Settings by tapping the 'Q' in the top left of the screen. Select the Comm Links menu and select the 'Add' button at the bottom of the screen.
In the Configuration Screen enter the following:
Name: ALTA X
Type: UDP
Check 'Automatically Connect on Start'
Listening Port: 14553
Target Hosts: 192.168.144.12:14553
Once all information is entered tap okay and restart QGround Control. QGC should start receiving data from the AltaX once it is open. Return to the Comm Links menu to make sure the link setup was correctly saved.
Find the Case Modification Fixture in the upgrade kit. This will consist of two printed parts that are packaged together.
Open the AltaX Case.
Use the features on the Case Modification Fixture's to align them correctly in the case. There are recessed areas that correspond to pockets in the existing AltaX Case to help with alignment.
The Case Modification Fixture with ' TITH SPACER POCKET' will be used on the back left of the case as shown.
The Case Modification Fixture with 'FUTABA POCKET' will be used on the front right of the case as shown.
Once aligned push down on fixtures so the features on the back of the parts constrain themselves on the case foam.
Use a sharp knife (a stiff boning knife works well) to cut the foam, using the fixture to guide the cuts. Cut to a depth of 50mm (2").
Pull out the foam from the two cut areas and discard of it. You may also discard the Futaba Radio Foam.
Test fit the AltaX in the case and adjust the antenna clearances if needed.
1.
Remove ALTA X from its box or travel case.
If you ordered Freefly Skyview Landing Gear, Short Quick Release Mount or Payload Vibration Damper:
Skyview Landing Gear: Install the "rocket" with the male Toad to the four threaded holes on the underside of ALTA X with (4x) M4x14 Combo bolts.
Short Quick Release Mount: Install onto the four threaded holes on the underside of ALTA X with (4x) M4x14 Combo bolts.
Payload Vibration Damper: install the four vibration isolation stand-offs to the four threaded holes on the underside of ALTA X then mount the vibration isolator with (4x) M4x14 Combo bolts.
2.
Use the built-in Toad in the Hole (TITH) on ALTA X’s payload mount (short or vibration damper) to mount ALTA X to your payload. If you are not using Freefly Landing Gear (Skyview, Cargo or Mōvi Pro Landing Gear) your payload will act as ALTA X’s landing gear.
Make sure to latch the TITH once you feel the TITH fully seat; you will hear a ‘click’ when seated.
3.
Fully unfold ALTA X’s booms; note that all of the booms are linked and will open simultaneously.
4.
Secure the booms by latching both the red safety latches on ALTA X.
Always make sure both safety latches are fully latched before flying ALTA X!
5.
Note flight direction relative to motor positions and GPS. Arrow on GPS indicates forward flight direction.
Payload [lb]
Payload [Kg]
Isolator Durometer
Cartridge Qty
0 - 3 *
0 - 1.4
30A
3
4 - 10 *
1.8 - 4.5
30A
6
11 - 19 **
5.0 - 8.6
30A
9
20 - 23 **
9.1 - 10.4
30A/40A
9
24 - 29 **
10.9 - 13.2
40A
9
30 - 32 **
13.6 - 14.5
40A/50A
9
33 - 35 **
15.0 - 15.9
50A
9
>35 ***
>15.9
60A (no longer available)
9
1.
To install, place the cartridges between the two isolator plates. Ensure they are engaged in the track features and are parallel with the plates.
2.
Push inwards fully until they click, indicating the cartridges are locked in place. Pull outwards on the cartridge to ensure it is locked.
3.
To remove, pinch the cartridge latch to unlock it from isolation plates and slide it outwards to disengage.
1.
Locate the bay used for receiver installation (between booms 2 & 3 )
2.
Remove quick release door with radio wires:
3.
Plug signal wire into receiver.
4.
If using telemetry, plug the telemetry wire located in the bay between booms 2 & 3 into the opposite side of the receiver.
5.
Feed receiver antenna through bottom of chassis via the plastic ferrule.
6.
Secure receiver using the provided double-sided tape to inside of receiver housing.
Replace the quick release door.
7.
Route antenna wires into the two antenna tubes below ALTA X chassis.
1.
Locate the bay used for receiver installation (between booms 2 & 3 )
2.
Remove quick release door with radio wires:
3.
Feed signal cable through panel grommet.
4.
Plug in receiver/satellite into signal cable.
5.
Attach receiver/satellite to exterior using double-sided tape.
1. | Push down on one side of the ActiveBlade assembly to open the gap and provide better access. Pull the bumper out from that side. |
2. | Repeat this for the second bumper. |
3. | To replace, insert the tail of the new bumper into the hole and pull into place, until the shoulder is fully seated. A circular motion may help with seating. |
4. | To replace the second bumper, push down on the ActiveBlade assembly and again pull the tail of the bumper to seat. |
5. | Rock the the ActiveBlade assembly back and forth to make sure the bumpers are aligned. |
1. | First, remove the ActiveBlade bumpers as detailed in the previous section. |
2. | Remove (2x) M5x30 bolts and (4x) M3x10 bolts and remove the top plate. Caution. Take note of plate orientation for reassembly. |
3. | Replace props and nylon washers if required. |
4. | Refit top plate and attach with (2x) M5x30 bolts and (4x) M3x10 bolts. Loctite 243 or equivalent must be used to secure these fasteners. |
5. | Reinsert the ActiveBlade bumpers as detailed in the previous section. |
1. | Remove (x4) M3x10 bolts by accessing through the top of the assembly as shown. |
2. | Fit new assembly and secure with (x4) M3x10 bolts. Loctite 243 or equivalent must be used to secure these fasteners. |
1. | Remove the Vibration Isolator assembly from the aircraft by removing the (4x) M4 x 14 Combo bolt. |
2. | Using a 12mm wrench and an M2.5 driver to remove the Pan Isolation post. |
3. | Replace the Pan Isolator Rings by pushing the old rings out of the mounts and inserting the new ring. Make sure it is fully captured by the mount. |
4. | Insert the post back through the Pan Isolator Ring and secure it using Loctite 222. |
5. | Repeat this process with all Pan Isolator Rings that need to be replaced. |
6. | Once you are done replacing Pan Isolator Rings, mount the Vibration Isolation assembly back to the aircraft using Loctite 243. |
1. | Remove the vibration isolator assembly from the aircraft by removing the (4x) M4 x 14 Combo bolt. |
2. | Remove the bumpers by pulling on their heads until they release from the Vibration Isolation assembly. |
3. | To replace, insert the tail of the new bumper into the hole and pull it into place until the shoulder is fully seated. A circular motion may help with seating. |
4. | Repeat this process with all Frame Bumpers that need to be replaced. |
5. | Once you are done replacing Frame Bumpers, mount the Vibration Isolation assembly back to the aircraft using Loctite 243. |
1. |
2. | Plug in a USB cable to your computer. Leave the other end unplugged from ALTA X for now. |
3. | Remove the chassis closeout between Booms 1 and 2 to reveal the expansion board. |
4. | Hold down the USB MSC Button on the expansion board while plugging in the USB C to the expansion board on your ALTA. Your ALTA will show up in your file browser as a USB disk named FF-ALTA. |
5. | You should see a folder named 'freefly'. |
6. | Replace the ‘freefly’ folder in the root of the drive with the new one downloaded from the freeflysystems.com website. |
7. | Unplug ALTA X from the USB. Hold the Boot button on the expansion board and plug in battery power, continuing to hold the Boot button down until the motor boom lights start blinking blue. |
8. | ALTA X should display blue solid or flashing lights on its motors to show it is updating its FW. Once complete the system will boot normally and display red and green directional lights on the motors. |
9 | Note: if your Alta X is configured with a nonstandard switch layout, this step could disrupt your workflow. Please check with your supplier or integrator if you are unsure |
1. | Remove two screws holding closeout door, remove closeout door |
2. | Install DC-DC converter using supplied button-head screws |
3. | Route & connect XT30 connector to inside of the power expansion board |
4. | Route XT60 connector to desired location |
Blue boom LED and loud motor beeping | Parameter structure is corrupted |
QGC has a lot of red tabs. Aircraft profile seems to be deleted. | Parameter structure is corrupted |
Preflight Fail: High Accelerometer Bias | If you fly around with no issues, and then land and then get this error, then its most likely a bug in PX4 Software. | Reboot/power cycle the aircraft |
If you get this error with a fresh boot before taking off and doing accelerometer calibration does not make the issue go away, then its most likely that the temp cal of the aircraft is not present |
Abrupt motions in autonomous missions, causing problem in capturing Lidar data | Lack of smooth mission execution in flight controller |
1.
To mount an external computer, first open the chassis. Directions for opening the chassis can be found in the maintenance section.
2.
Once the chassis is open use the 32x32 mm hole pattern in the lower chassis plate to mount the computer. The hole pattern is sized for M3 bolts.
3.
After mounting the external computer and routing its power and I/O cables, close the chassis.
4.
TELEM1 and TELEM 2 are internal UART for ext computer integration. Both are exposed as 6pin GH. By Default TELEM1 is typically plugged into the FRX Pro. TELEM2 is shared with wifi, so wifi can't be used if you connect anything to TELEM2. SET_TEL1_BAUD or SET_TEL2_BAUD is how you would adjust baud rates.
Certifications for Alta X
Alta X is certified in Canada for Advanced Operations under the Transport Canada RPAS Safety Assurance requirements
Alta X DIU Blue Package (SKU: 950-00113-Blue)
The original Alta X that shipped between September 2019 and May 2022 came equipped with DJI M12 Motors. In June of 2022, the Freefly Alta X received a motor update and is now shipping with X9 motors.
Like all Freefly Systems products, we conducted a lot of testing on these motors to ensure reliability, performance, and safety. You can find the testing log book and test plans conducted for the X9 motors here.
The X9 motors are configured in software to match the same thrust performance of the M12 motors.
X9 motors are not susceptible to SB003 Motor Stall on fast descent.
The M12 and X9 motors use the same 33” propeller but have a slightly different ActiveBlade assembly to accommodate a different motor shaft and bolt pattern. Below are photos of the two motors to help you identify which motors you have and which active blade assembly you will need to purchase for spare parts. If you’re purchasing a new Alta from Freefly Systems at the time of reading this you will have X9 motors.
The M12 motors use
The X9 Motors use
To determine maximum gross weight, determine flight location pressure altitude, and temperature, and refer to the weight in the chart below. Gross Weight includes payload, battery, and structure weight.
The maximum gross weight might exceed the weight allowed by regulatory agencies. When determining gross weight, please consider any such local restrictions on aircraft weight when planning aircraft weight.
The maximum gross weight at a defined density altitude was established by calculating weight so that sufficient thrust margin for maneuvering is maintained.
Cells highlighted in yellow indicate where the weight is limited by the maximum design weight
How each Alta X is built!
You can see how an Alta X is assembled and tested in this visual diagram
Battery hot swaps are not recommended. Please power off the aircraft by disconnecting both batteries when swapping packs to ensure ideal performance and battery lifespan.
More information about the battery, button functions, and status LED indicator codes can be found in the user manual
Battery Tray Dimensions
The external communications expansion port is located between booms 1 and 2 on the ALTA.
By default, TELEM 1 is used as the telemetry connection for the FRX Pro radio. It is fully configurable for what is sent, baud rate, etc. This port is turned on by default and the RAM usage fully accounted for in the Alta X’s design.
This is the telemetry connector that is inside the drone. It is also fully configurable. It is shared with the WiFi module so WiFi must be disabled for TELEM 2 to be used. The use of TELEM 2 requires additional RAM usage. As the RAM availability of the Alta X is limited, use of TELEM 2 may lead to issues caused by insufficient memory. (see SB006)
The RID capable IO module comes with a “breakout” for TELEM2 to grant easier access to the TELEM 2 port. Pilots flying with Alta Xs that have been manufactured since the March 18th, 2024 release of the RID module or, “standard module users,” will have access to this telemetry port by default. Pilots that have installed the RID IO module themselves or, “broadcast module users,” will need to install the cable connecting the breakout TELEM 2 port to the Alta X’s inner TELEM 2 port.
“Broadcast module” users can reach out to Freefly Support for more information on purchasing the cable needed for use of the breakout TELEM 2 port.
Installing the cable that connects the breakout TELEM 2 port to the inner TELEM 2 port does not change your “broadcast” module into a “standard” module.
Installing the cable that connects the breakout TELEM 2 port to the inner TELEM 2 port requires opening up the chassis of the Alta X. Performing this installation is done at the user’s discretion.
The AUX UART port is a hardcoded MAVLink stream that controls Alta X’s onboard system functions such as the lights, video OSD, and RID. AUX UART is connected internally as TELEM4, however, attempting to configure TELEM 4 is not advised as any changes to how AUX UART communicates will break the internal operation of the drone. AUX UART is fixed at a 57600 baud rate and has a fixed set of MAVLink messages.
The external expansion connector port 5V power is provided by a dedicated 5V 3A current limited power supply separate of the redundant 5V power supplies for the flight controller. Each output on the external expansion connectors is protected by a 1.1A hold 2.2A trip PTC (Part number 0ZCG0110FF2C). The sum of the power supplying the following components must be less than 3A:
Motor boom LEDs (approx 1A during flight with 2x red and 2x green LEDs)
Long range radio if not powered via other means (FRX Pro is powered by 12V)
All internal CANbus peripherals on CAN expansion connectors
All external UART, I2C, and CANbus connectors
MAVLink serial communications at 57600b 8-N-1
Nuttx console output at 57600b 8-N-1.
Peripheral CANbus for future expansion.
WARNING: Internal Long Range RF CAN is 12V VCC, do not use!
I2C bus for future expansion
The power expansion port is located between booms 1 and 2 on the ALTA; it contains three externally-facing and two internally-facing direct battery connected power expansion connectors with female socket pin XT-30 type connectors. Each external output is protected by a 10A automotive mini blade type fuse. The replacement fuse part number is 0297010.WXNV.
The system and fuses are sized to supply 10A or less continuously on each external port simultaneously; the internal connectors share the same fuse with the external connector J1. Please note that the output voltage will vary with system battery voltage as the battery discharges.
Use of any other size fuse could cause the aircraft to crash if shorted.
Every Alta X comes with a cable pre-installed to attach the FPV video transmission system. Freefly provides this FPV system and the appropriate cable to attach the transmitter to the aircraft cable, but if the customer wants to install their own FPV transmitter, please use the pinout below for wiring guidance. Also see note below pinout for camera-specific guidance.
Note: The Freefly-provided FPV system powers the camera via the 5V-passthrough at the VTX. If the customer wants to install their own VTX that does not provide a 5v-passthrough, it is necessary to power the camera directly from the 5V pin (Pin 3). This can be done by moving the pin on the camera cable from pin 4 to pin 3.
Overview of ALTA 8 Pro
ALTA Pro is a professional multi-rotor aircraft designed for demanding cinematic, professional, and industrial, applications. In under five minutes, ALTA Pro can unfold from its carrying case to flying some of the most capable cinema cameras and industrial payloads on either the top or bottom of the aircraft. ALTA Pro runs the PX4 stack and has been customized for both cinema and commercial use, yielding precise yet smooth control.
This Aircraft Flight Manual describes the complete operation of airframe and flight control systems, and the normal maintenance of those items. Do not operate ALTA Pro without reading and understanding this manual.
This manual is not a substitute for adequate flight training. Training requirements can vary when operating in different countries or under different flight conditions. Always consult local regulations before flying ALTA Pro. In areas where there are no flight training requirements, it is the sole determination of the pilot-in-command as to whether he or she has the appropriate level of training or experience for a given flight. Always set and adhere to personal minimums and fly within your own capabilities.
Throughout the manual, warnings, cautions and notes are used to highlight various important procedures. These are defined as follows:
Warnings are used to highlight procedures which, if not strictly observed, may result in personal injury.
Cautions are used to highlight procedures which, if not strictly observed, may cause damage to equipment.
Notes are used to highlight specific operating conditions, usability tips and tricks or steps of a procedure.
Qgroundcontrol for ALTA 8 Pro
Getting QGroundControl up and running is quick and easy! Use the ALTA Pro QGroundControl program to change ALTA Pro’s parameters, monitor statuses, and set up waypoint missions.
Download and install the application.
Start QGroundControl and ALTA Pro.
Connect your vehicle to the ground station device.
WiFi
To connect to ALTA Pro via WiFi, find the ALTA Pro’s WiFi connection by searching for it in your device’s WiFi menu and then connect to it like you would any other device.
You may have to enable the WiFi feature on ALTA Pro if it is your first time connecting.
900/868MHz
Simply plug in the 900/868MHz radio into your computer using the attached USB cable. If ALTA Pro is turned on the two radio’s will automatically connect!
QGroundControl
The implementation of QGroundControl into the ALTA Pro system results in new features.
By harnessing the full power of the PX4 autopilot controller architecture, ALTA Pro has all the features of a modern drone: waypoints, autonomy, telemetry/C2, autoland, etc.
Advanced, high-bandwidth position hold offers unprecedented precision, repeatability, and stability.
PX4 integration will allow users to create and fly complicated waypoints missions with ease.
The use of Mavlink and Dronecode protocol makes drone software integration possible and creates straightforward path to custom sUAS solutions for both cinema and business.
ALTA Pro has a built in 900/868MHz radio which will allow for a range of up to 2 miles between the aircraft and ground station.
The ALTA Pro QGroundControl App will be actively maintained, and additional functionality may be added over time. For information on individual app updates, refer to the App release notes.
900/868 MHz Radio
ALTA Pro makes use of a 900/868MHz radio to increase the communication range between the ALTA Pro and laptop ground station. This allows users to monitor, update, and reroute ALTA’s while up in the air or on the move.
QGroundControl has a custom tab that allows quick access to the most important ALTA Pro parameters. These parameters are accessible through the ‘Tuning’ tab in the Vehicle Setup Menu.
Access to boom LEDs and OSD parameters are also located in the Vehicle Setup Menu, under the Parameters tab and in the ALTA grouping.
ALTA 8 Pro Specifications
Case
ALTA Pro
Long Range Radio Modem
a. Aerial portion mounted to ALTA
Isolator Cartridges
a. (6) Teal (Installed)
b. (6) Black
c. (6) Red
Inverted Landing Gear
Quick Release Battery Tray
ALTA Product Spares
USB-Futaba Power Cable
FPV Cables
a. Skyzone/BOSCAM
b. BOSCAM, small connector
c. ImmersionRC/Fat Shark
d. Ready Made RC
5.5mm Wrench
Hex Drivers (1.5mm, 2.0mm, 2.5mm)
Electronic Luggage Scale
Documentation
ALTA Pro supports a variety of radio controllers as outlined in the Flight Controller Specifications. A minimum of five (5) channels are required, with four (4) used for flight control, and the remaining one (1) used for mode selection.
ALTA Pro can accommodate a variety of Lithium Polymer (LiPo) flight battery packs. Battery packs must be 6S, having a nominal voltage of 22.2 V. Only run ALTA Pro using two packs at a time. Each pack must have a continuous discharge rating of 250 amps or greater, and a peak discharge rating of 500 amps or greater. For additional information on expected flight durations, refer to the Performance Section of this manual.
Download the latest ALTA X FW from the
Update ALTA X to use the .
See
See
See
See
Flight Time (min)
Payload (lbs)
Payload (kg)
Total Weight (lbs)
Thrust to Weight Ratio
50
0
0
43.28
3.5
41.7
5
2.3
48.28
3.1
33.3
10
4.5
53.28
2.8
26.6
15
6.8
58.28
2.6
22
20
9.1
63.28
2.4
18
25
11.3
68.28
2.2
12.5
30
13.6
73.28
2.0
10.75
35
15.9
78.28
1.9
Max Configurable Parameters
Max Angular Velocity
Configurable, default to 100 deg/s in manual mode
Max Pitch Angle
Configurable, default to
Max Ascent Speed (by mode)
Configurable, default to 6m/s in Position & Altitude Mode
Max Descent Speed (vertical (by mode)
Configurable, default to 4m/s down in Position & Alt Mode
Max Speed (by mode)
Configurable, default to 20m/s in Position Mode
Max Service Ceiling above Sea Level
Depends on payload, see "Maximum Gross Weight" chart
Dimension
Length [mm]
Unfolded Diameter (not including props)
1415
Unfolded Diameter (Including Props)
2273
Folded Diameter
877
Height
387
Height (Skyview)
434
Number of Motors
4
Motor Max Continuous Power
17,760W
Motor Max Instantaneous Peak Power
23,088W (<3s)
Equivalent Kv
115 rpm/V
Material
Carbon Fiber Reinforced Nylon
Propeller Orientation
(2x) CW and (2x) CCW Props
Propeller Type
Folding - 840 x 230 mm (33 x 9in)
Cells
12S
Nominal Battery Voltage
44.4V
Peak Battery Voltage
50.4V
Battery Connectors
XT-90 Anti Spark
Required Minimum Battery Discharge Rating (Per Pack)
260a per battery
(assumes two batteries) 20C for a 16A-hr pack.
Maximum Gross Takeoff Weight
34.9kg
Maximum Payload
15.9kg
Empty Weight
10.4 kg
Operating Temperature
-20C to +50C
Operating Ceiling
(Weight-dependent. See performance specs)
Ingress Protection
Tested to IP43 equivalent
Autopilot Name
Custom PX4 flight control stack
Flight Modes
Manual, Altitude, Position, Mission, Loiter, Orbit, Return
Supported Inputs
MAVlink SDK
Supported Radios
Futaba, Spektrum, PX4 compatible SBUS and PPM receivers
Supported Radio Controller Telemetry Systems
Voltage feed provided for Futaba RX telemetry
Minimum Radio Controller Channels Required
5 (roll, pitch, yaw, throttle, mode)
Supported GNSS
GPS/Glonass/Beidou/Galileo
Orientation Lights
Boom tip mounted LEDs
Orientation Light Color Options
User controlled in software - red, orange, yellow, green, cyan, blue, purple, white, and off.
FPV Ability
Yes, see the FPV integration section for instructions on how to mount the FPV.
Vibration Isolation System
Built-in (see chart below for weight suggestions)
Payload [lb]
Payload [Kg]
Isolator Durometer
Cartridge Qty
0 - 3 *
0 - 1.4
30A
3
4 - 10 *
1.8 - 4.5
30A
6
11 - 19 **
5.0 - 8.6
30A
9
20 - 23 **
9.1 - 10.4
30A/40A
9
24 - 29 **
10.9 - 13.2
40A
9
30 - 32 **
13.6 - 14.5
40A/50A
9
33 - 35 **
15.0 - 15.9
50A
9
Operating Frequency
Futaba
2.4 Ghz
FRX Pro
900Mhz
FPV TX
5.8 Ghz
RFD 900X
900Mhz
Herelink
2.4 GHz
Max Transmitting Distance
Futaba
Varies on conditions
FRX Pro
1-2 Miles LOS
FPV TX
TBD
RFD 900X
1-2 Miles LOS
Herelink
1-2 Miles LOS
Power Supply
Futaba
DC - 6V HT5F18008 NiMH
FRX Pro
Input 5-30v
FPV TX
Up to 600mA
RFD 900X
5V
Herelink
Via Pilot Pro backpack
Output Power (max)
Futaba
± 0.52dBm
FRX Pro
10mW - 1W (User adjustable)
FPV TX
25mW (up to 800mW with HAM license*)
RFD 900X
1W (+30dBm)
Herelink
200 mW
USB Power Supply
Futaba
NA
FRX Pro
5V
FPV TX
NA
RFD 900X
5V
Herelink
NA
Operating Temperature
Futaba
NA
FRX Pro
-20 to 50C
FPV TX
Normal Airflow
RFD 900X
-40 to +85 deg C
Herelink
-10 to 50 C
Pin
Signal
Voltage (V)
1
VCC
+5V
2
TX (Out)
+3V
3
RX (In)
+3V
4
CTS (In)
+3V
5
RTS (Out)
+3V
6
GND
GND
Pin
Signal
Voltage (V)
1
VCC
+5V
2
TX (Out)
+3V
3
RX (In)
+3V
4
I2C1 SCL
+3V
5
I2C1 SDA
+3V
6
GND
GND
Pin
Signal
Voltage (V)
1
VCC
+5V
2
CAN_H
+5V
3
CAN_L
+5V
4
GND
GND
Pin
Signal
Voltage (V)
1
VCC
+5V
2
I2C1 SCL
+3V
3
I2C1 SDA
+3V
4
GND
GND
Connector Pinout
(DF11-6DEP-2C)
Designation
Color
1
12V
RED
2
GND
BLACK
3
5V
PURPLE
4
5V-Pass-Thru
GREY
5
VID-IN
YELLOW
6
VID-OUT
ORANGE
Item
Spec
Maximum Payload
9.1 kg (20.0 lbs)- ALTA Pro 8
Maximum Takeoff Weight
See following tables
Item
Dimension
Unfolded Diameter
(does not include Props)
1325 mm - ALTA Pro
Folded Diameter
(does not include Props)
660 mm - ALTA Pro
Height to base of Toad In The Hole (TITH)
263 mm - ALTA Pro
Item
Specification
Number of Motors
8 - ALTA Pro 8
Motor Type
Direct Drive 3-Phase PMAC Outrunner
Motor Make and Model
Freefly F45
Motor Max Continuous Power Output
350 W
Motor Max Instantaneous Peak Power Output
950 W
Maximum RPM (flat rated)
6300 RPM
Equivalent Kv
384
Electronic Speed Controller
Freefly Silent-Drive Sine Wave ESC
Item
Spec
Make and Model
Freefly ALTA Propeller
Material
Carbon fiber with balsa core
Propeller Orientation
(4) CW and (4) CCW Props - ALTA Pro 8
Propeller Type
18 × 6 Folding
Item
Spec
Nominal Battery Voltage
6S / 22.2V
Maximum Battery Size (GroundView)
240 × 175 × 80 mm
Maximum Battery Size (SkyView)
220 x 156 x 64 mm
Maximum Battery Quantity
2 Battery Packs (Parallel)
Minimum Battery Quantity
2 Battery Packs (Parallel)
Battery Connectors
2× EC5 (Parallel)
Required Minimum Battery Discharge Rating (Per Pack)
250A / 500A Peak
Item
Spec
Maximum Gross for Takeoff
18.1 kg (40.0 lbs) - ALTA Pro 8
Maximum Useful Load
12.0 kg (26.4 lbs) - ALTA Pro 8
Maximum Payload
9.1 kg (20.0 lbs) - ALTA Pro 8
Typical Standard Empty Weight
6.2 kg (13.6 lbs) - ALTA Pro 8
Item
Spec
Typical Specific Power
145 W/kg
Thrust Ratio at MTOW1
1.85 : 1
Item
Spec
Autopilot Name
PX4
Flight Modes
Manual, Height Mode, Position Mode , Return-to-Land (RTH), Autoland, Waypoint Mission mode
Supported Inputs:
DSMX, DSM2, S.Bus, S.Bus2
Supported Radios
Futaba S.Bus & S.Bus2, DSMX, DSM2 (Spektrum/JR)
Supported Radio Controller Telemetry Systems
Futaba w/ built-in voltage sense port
Minimum Radio Controller Channels Required
5
Supported GNSS
GPS, GLONASS, Galileo
Supported Satellite-based Augmentation System
QZSS, WAAS, EGNOS, MSAS
First-Person View System Video Formats
NTSC, PAL
Supported First-Person View Transmitters
Skyzone, BOSCAM, ImmersionRC, Fat Shark
Supported First-Person View Cameras
Ready Made RC
RMRC-700XVN (Recommended), Runcam Eagle 2 Pro, or similar
First-Person View OSD Telemetry
User Configurable
Installed Transceivers
RFD900/868X Long Range Telemetry System
Wi-Fi 2.4 GHz b/g/n
Default Data Logging Rate
25Hz
Item
Spec
Status Light
1 Watt Red, 1 Watt White LED
Orientation Lights
3-Watt RGB LED
Orientation Light Color Options
Off, Red, Orange, Yellow, Green, Blue, Cyan, Purple, White
FPV Ability
FPV SD with OSD overlay
GPS Light Color Scheme
Solid Blue - Armed Without GPS Lock
Solid Green - Armed With GPS Lock
Breathing (Any Color) - Waiting/Standby
Blue (Solid or Breathing) - No GPS Lock
Green (Solid or Breathing) - GPS Lock
Fast Blinking Red - Arming Error
Item
Spec
Vibration Isolation System
O-Rings
Option 1: Soft / Light Payloads
Red O-Rings
Option 2: Medium / Medium Payloads
Teal O-Rings
Option 3: Stiff / Heavy Payloads
Black O-Rings
Item
Spec
Mounting Locations
FPV Transmitter Mount
GPS Mount
Telemetry Radio Mount
Mounting System
FPV Camera Mount
Between Booms 1 & 8 - ALTA Pro 8
FPV Transmitter Mount
Boom 2 - ALTA Pro 8
GPS Mount
Boom 7 - ALTA Pro 8
Telemetry Radio Mount
Boom 3 - ALTA Pro 8
Pin
Signal
Voltage (V)
1
VCC
+5V
2
TX (Out)
+3.3V
3
RX (In)
+3.3V
4
CTS (In)
+3.3V
5
RTS (Out)
+3.3V
6
GND
GND
Pin
Signal
Voltage (V)
1
VCC
+5V
2
TX (Out)
+3.3V
3
RX (In)
+3.3V
4
I2C1 SCL
+3.3V
5
I2C1 SDA
+3.3V
6
GND
GND
Pin
Signal
Voltage (V)
1
VCC
+5V
2
CAN_H
+5V
3
CAN_L
+5V
4
GND
GND
Pin
Signal
Voltage (V)
1
VCC
+5V
2
I2C1 SCL
+3.3V (1.5K pull-up)
3
I2C1 SDA
+3.3V (1.5K pull-up)
4
GND
GND
Term
Definition
ISA
International Standard Atmosphere in which:
The air is a dry, perfect gas;
The temperature at sea level is 15° Celsius (59° Fahrenheit);
The pressure at sea level is 1013.2 mbar (29.92 inches Hg);
The temperature gradient from sea level to the altitude at which the temperature is -56.5°C (-69.7°F) is -0.00198°C (-0.003564°F) per foot and zero above that altitude
MSL
Mean Sea Level is the average height above the surface of the sea for all stages of tide
AGL
Above Ground Level is the height of the aircraft above the ground
OAT
Outside Air Temperature is the free air static temperature surrounding the aircraft
Pressure Altitude
Altitude measured from standard sea level pressure (1013.2 mbar, 29.92 in. Hg) by a pressure or barometric altimeter
It is the indicated pressure altitude corrected for position and instrument error. In this Manual, altimeter instrument errors are assumed to be zero
Term
Definition
Maximum Continuous Power Output
The maximum typical power output of a motor averaged over the entire flight
Maximum Instantaneous Peak Power Output
The maximum power output of a motor during any phase of flight, such as when maneuvering
Term
Definition
Throttle Stick
The radio controller stick responsible for throttle control. For Mode 2 controllers, this is the vertical movement of the left control stick. For Mode 1 controllers, this is the vertical movement of the right control stick
Yaw Stick
The radio controller stick responsible for yaw (also called pan) control
For Mode 2 and Mode 1 controllers, this is the lateral movement of the left control stick
Pitch Stick
The radio controller stick responsible for pitch control. For Mode 2 controllers, this is the vertical movement of the right stick
For Mode 1 controllers, this is the vertical movement of the left stick
Roll Stick
The radio controller stick responsible for roll control. For Mode 2 and Mode 1 controllers, this is the lateral movement of the right control stick
Pitch/Roll Stick or Cyclic Stick
The radio control stick responsible for both pitch and roll control
For Mode 2 controllers, this is the right stick
Term
Definition
Maximum Takeoff Weight (MTOW)
Maximum allowable weight at liftoff
Standard Empty Weight
Weight of a standard aircraft
Basic Empty Weight
Standard empty weight plus optional equipment
Useful Load
Difference between take off weight and basic empty weight
Payload
Useful load less battery weight
Term
Definition
LOS
Loss of Signal
RTH
Return-to-Land
sUAS
Small Unmanned Aircraft System includes all components of the system required for the flight of an unmanned aircraft, including the radio controller, data link and other related support equipment
ALTA Pro will notify the pilot of critical alarms through QGroundControl. These alarms indicate a serious issue has been observed in the behavior of the ALTA Pro that, if not acted upon immediately, can cause loss of control. Never continue a flight when ALTA Pro indicates an alarm!
GH-6 Pin
GH-4 Pin
For a more indepth review of QGroundControl’s capabilities and workflows, please visit the QGroundControl User Guide.
If you are currently operating with an ALTA (Autopilot) version, there is no need to upgrade if you’re happy with the current feature set. The Autopilot-controlled ALTA has an excellent track record for reliability and smooth flight characteristics. Currently, the Alta Autopilot version offers Orbit mode functionality and the Velocity clamp feature. While the ALTA Pro will continue to see features added, it is does not currently support Orbit mode and Velocity clamp functionality.
When flying multiple aircraft at the same time, take extreme caution to ensure that the aircraft connected to the laptop/mobile device is the desired craft. Failing to connect to the correct device may result in an inadvertently arming a aircraft or disarming one that is inflight.
We suggest not selecting ‘Connect Automatically’ when using WiFi to connect to ALTA Pro and clearly labeling each 900/868MHz RX/TX pair.
All 900/868MHz radio’s are set to default signal strength when they leave our facility. Users are responsible for making sure they are operating within the bounds of the radio communication regulations in their area. The radio strength settings can be updated with the RFDTools program. Users will have to use the USB supplied with the radio modules to connect to their computer and update signal strength parameters. This should be done for both radios. Contact support for questions concerning how to update the radio settings.
Symbol
Name
Function
Configure the QGroundControl application.
Configure and tune your vehicle.
Create autonomous missions.
Monitor you vehicle(s) while flying, including streaming video.
Download logs, geotag images from a survey mission, access the MAVLink console
Vehicle Messages
Click to show a dropdown of messages from the vehicle. This will change to a Yield sign if there are critical messages. Yield sign shown in image above.
GPS Status
Shows you satellite count and current hdop.
RC RSSI
RC signal strength information.
Telemetry RSSI
Telemetry signals strength information.
Battery
Remaining battery percent.
Flight Mode
Current flight mode. Click to change flight mode.
RTK GPS Survey-In Status
Shows you progress of RTK GPS Survey-In process.*
*ALTA Pro does not ship with an RTK GPS
These limitations are advisory in nature and do not extend or restrict limitations provided by governing aviation authorities.
Item
Spec
Maximum RPM
6300 RPM
Maximum Battery Voltage
25.2 Volts
Minimum Average Battery Voltage
19.2 Volts
Item
Spec
Maximum Pitch/Roll Angle
45°
Maximum Yaw Rate
150° / second
A radio controller with between six to ten channels is highly recommended to make use of Return-to-Land (RTH) and ALTA Pro’s other functions. It is recommended to use a radio controller with a three-way switch for Mode selection and a two-way switch for the Return-to-Land function.
The use of flight packs which do not meet the voltage and discharge rating above (22.2V nominal, 250a continuous discharge, and 500a peak discharge) can cause damage to the ALTA and the batteries.
ALTA Pro QGroundControl allows users to save, load, and reset all of ALTA Pro’s parameters. This is useful when trying to save certain parameters that will need to used again in the future or when troubleshooting and needing to get back to a known good state.
Saving parameters can be done in the Parameters tab of the Vehicle Setup menu. Navigate to the ‘Tools’ menu in the top right hand corner of the window and select ‘Save to file…’ from the dropdown. Then select a file name and folder to save to.
Loading parameters is also done from the Parameters tab of the Vehicle Setup menu. Navigate to the ‘Tools’ menu in the top right hand corner of the window and select ‘Load from file…’ from the dropdown. Then select the desired .params file to load.
To reset all ALTA Pro’s parameters to the ALTA Pro defaults follow the Loading Parameters instructions and load the ALTA Pro Default Parameters file. This can be found on the ALTA Pro support page.
Connect to ALTA Pro using the Radio Modem or USB
Go to the System Parameters under the Parameter tab in the Vehicle Setup menu and find the SYS_COMPANION parameter.
Change the SYS_COMPANION parameter to ‘ESP8266 (921600 baud, 8N1)’ and restart ALTA Pro to enable the WiFi connection.
To enable WiFi connectivity follow the steps below!
ALTA Pro allows users to update the system’s WiFi password and SSID. All ALTA Pro’s initially come with WiFi disabled for safety reasons.
Once you have enabled ALTA Pro’s WiFi, change the password and SSID from their defaults!
Connect to ALTA Pro’s WiFi using the initial password listed below
SSID: [off] AltaPro-<serial number>; eg. [off] AltaPro-781880
Password: altaalta
Open your prefered web browser and go to 192.168.4.1
Select setup, then update the SSID and password. Make sure to make the password is eight characters long, secure, and noted down somewhere in case you forget!
Do not change any of the other menu items!
4. Once the password and SSID have been updated, hit the save button at the bottom of the menu. 5. Power cycle ALTA Pro and ensure you can connect to ALTA pro using the new password. 6. Connect to Futaba radio system and confirm both receivers work and system arms.
The rear-facing Status Light shows the status of ALTA Pro as it boots, arms, and flies. The following table shows the different meanings of the light in the various flight phases.
To set up ALTA Pro for flight, remove it from the case, and remove the prop protectors. Stow the boom retention clips by folding them down. The clips fold in one direction and are spring-loaded to stay in open and closed detented positions.
Unfolding the booms is most easily accomplished by unfolding all opposite pairs partially, then unfold the opposite boom pairs completely. ALTA Pro can become unbalanced while unfolding booms individually, so unfolding opposite pairs reduces the possibility of tipping.
Once unfolded, push on the boom latches until they audibly click, indicating the booms are secure. There should be little to no slop in the hinge. Check that the receivers and the electrical connectors that attach to the receivers are secure.
For information on installing isolator cartridges and setting up payload mounting locations, refer to the Isolator Cartridges and Configuring GroundView or SkyView sections of this manual.
Alarm Indication (Flashing or Solid Red Light)
Alarms are displayed if the flight controller determines there is a condition present that can adversely affect the safety of the flight. Alarms are indicated by the Status Light staying or flashing Red (depending on the flight mode).
Land as soon as possible when the Status Light indicate a warning, and investigate the problem while ALTA Pro is safely on the ground. It is best practice to set the mode switch to Manual when an Alarm is observed to maintain full control authority of ALTA Pro.
Flight Phase
Light Color
Meaning
Booting
Flashing Red + White
Flight controller is booting
Standby
Flashing White
Flight controller is running and disarmed
Flashing Red
Flight controller is running and not ready to arm
Solid Red
Flight controller boot unsuccessful
Armed
Off
Ready for Flight
Flight - all modes
Solid Red
Flight critical alarm—land immediately!
Flight - Manual Mode
Off
Nominal flight status
No errors
Solid White
Outside user-defined range, height, or speed limits
Solid Red
Flight critical alarm or battery alarm voltage—land immediately!
Flashing Red
Battery land voltage—land immediately!
Flight - Height Hold
Off
Nominal flight status
Height hold inactive
Slow Flashing White
Height hold active
Solid or Flashing Red
Flight critical alarm—land immediately!
Flight - Position Hold
Off
Nominal flight status
Height hold inactive
Position hold inactive
Fast Flashing White
Height Hold and Position Hold Active
Solid or Flashing Red
Flight critical alarm —land immediately!
Item | Action |
1. | Aircraft | REMOVE from case |
2. | Prop protectors | REMOVE |
3. | Boom retention clips | STOW |
4. | Booms | UNFOLD |
5. | Boom latches | LOCK |
6. | Receivers and wiring | CHECK |
7. | Isolator cartridges | SELECT and INSTALL as necessary |
8. | Payload mounting location | CONFIGURE as necessary |
Item | Action |
1. | Mode Switch | MANUAL |
2. | ALTA Pro | LAND as soon as possible |
3. | ALTA Pro QGroundControl | CHECK IN APP WARNINGS |
Selecting the ‘Reset all to defaults’ option in the Tools menu will reset all parameters to the QGroundControl defaults. These are not the same as the ALTA Pro default parameters. To reset to ALTA Pro defaults load the ALTA PRO Default Parameters to the aircraft.
ALTA Pro passwords must be longer than eight characters and should be unique for each ALTA Pro. Do not use the same password on multiple machines!
We suggest not selecting ‘Connect Automatically’ when using WiFi to connect to ALTA Pro and clearly labeling each 900/868MHz RX/TX pair.
Please read this entire section if you intend to use the WiFi feature of ALTA Pro.
When flying multiple aircraft with WiFi enabled, take extreme caution to ensure that the aircraft connected to the laptop/mobile device is the desired craft. Failing to connect to the correct device may result in an inadvertently arming a aircraft or disarming one that is inflight.
An FPV Loss of Signal (LOS) can occur if the aircraft flies out of range or if it flies behind an object that interrupts the signal. Maintaining visual contact is the preferred method to re-establish control of the aircraft, either with the pilot seeing the aircraft, or by the use of a visual observer.
Yawing the aircraft can help signal reception if the body of the aircraft is blocking the line of sight between the transmitter and receiver antennas.
If FPV signal or visual contact cannot be maintained, setting the Mode switch to Position Mode and enabling Return-to-Land can be used to bring the aircraft back to signal reception range.
When not using the Autoland feature, make sure to switch to Manual Mode prior to landing.
Upon landing, disarm the motors by holding minimum throttle and full left yaw. This is typically done on the left radio control stick by moving it to the bottom left corner with mode 2 controllers. Disarming can only be done while in Manual Mode. Once the motors are stopped and disarmed, the Orientations Lights will flash green, and the Status Light will slowly flash white, indicating it is safe to approach ALTA Pro.
The downwash from the propellers can disturb debris. This debris can be ingested by the propellers or motors and cause damage. After the flight, ensure there is no damage to the propeller blades and that the motors still spin freely and quietly. Take extra care when operating in areas with large amounts of debris, such as in sand, dirt, or gravel.
After flight is also a good time to check the condition of battery packs. Always refer to the battery manufacturer’s recommendations for inspection and replacement intervals or requirements.
As altitude and temperature increase, the density of the air decreases. Consequently, ALTA Pro’s thrust will decrease. The following table describes maximum gross weight limits with respect to altitude and temperature.
Item
Specification
Max Allowable Wind Speed
<22 knots
Temperature Window
45ºC (113ºF) ~ -20ºC(-4ºF)
Item
Action
1.
Control Inputs
AS REQUIRED
2.
Visual Contact
MAINTAIN
3.
ALTA Pro
POSITION for optimal signal reception
Item
Action
1.
Mode Switch
POSITION
2.
Home Switch
RETURN TO HOME
3.
Throttle
AS REQUIRED
It is the responsibility of the pilot to see and avoid other aircraft, people, or obstacles. Always maintain direct line of sight with ALTA Pro during flight, use visual observers as operations require, and follow local regulations regarding see-and-avoid requirements.
Item
Action
1.
Mode Switch
MANUAL
2.
Home Switch
OFF
3.
ALTA Pro
LAND
4.
Motors
DISARM and STOP
5.
Orientation Lights
VERIFY FLASHING GREEN
6.
Status LED
VERIFY SLOW FLASHING WHITE
7.
ALTA Pro QGroundControl
CHECK for warnings
8.
Batteries
DISCONNECT AND REMOVE
9.
Radio Controller Power
AS REQUIRED
10.
Aircraft Condition
INSPECT
11.
Motor and Prop Condition
INSPECT
12.
Battery Condition
INSPECT
Users may land in Manual Mode, Altitude Mode, or letting the ALTA Pro land autonomously when doing a waypoints mission. Quickly reverting to manual mode when landing in Altitude mode will prevent ALTA Pro unwanted movements .
Only approach ALTA Pro after confirming that it is disarmed by verifying the Status Light and Orientation Light colors.
Conditions:
If ALTA Pro behaves unexpectedly, neutralize controls by centering the throttle/yaw and pitch/roll sticks and observe ALTA Pro. If it is still flying in an uncommanded manner in either Altitude or Position Mode, switch to Manual Mode. In most cases, unexpected behavior is due to erroneous sensor readings, degraded GPS signal reception, or compass issues.
If the unexpected behavior occurred while in Manual mode, land as soon as possible and check ALTA Pro QGroundControl for any warnings.
Autopilot firmware is updated via the USB expansion port on ALTA Pro located in the chassis closeout between booms 1 and 2. To update firmware download the latest FW files from the ALTA Pro Firmware page and follow the instructions below:
Download the latest ALTA Pro FW from the ALTA Pro Firmware page on the support website.
Plug in a USB cable to your computer. Leave the other end unplugged from ALTA Pro for now.
Remove the chassis closeout between Booms 1 and 2 to reveal the expansion board.
Hold down the USB MSC Button on the expansion board while plugging in the USB C to the expansion board on ALTA Pro.
Enter the new folder now available in your file explorer. You should see a folder named FF-ALTA PRO.
Replace the ‘Freefly’ folder in the folder called FF-ALTA PRO with the new one downloaded from the Freeflysystems.com website.
Unplug ALTA Pro from the USB and then apply battery power while holding down the Boot button on the expansion board.
ALTA Pro should display a pink light to show it is updating its FW. Once complete the system will boot normally and display flashing green orientation lights and a flashing white status light.
Item
Action
1.
Control Inputs
NEUTRALIZE
2.
Mode Switch
MANUAL
3.
ALTA Pro
LAND as soon as possible
Symptom | Potential Cause | Potential Solution |
Boot Fail | Voltage limits exceeded | Check voltage of flight packs and replace as necessary |
Compass readings out of limits | Check surroundings and boot in an area away from ferrous objects. Recalibration of the compass. |
Compass Warning | Invalid compass calibration | Calibrate the compass |
GPS Warning | GPS/Compass Unit has become disconnected | Check the GPS/Compass unit wiring for damage |
Accelerometer Warning | Hard landing | Reboot ALTA Pro |
Motor Warning | ESC or Motor failure or error | Contact Freefly Customer Support immediately. Do not continue flying ALTA Pro. |
Symptom | Potential Cause | Potential Solution |
ALTA Pro will not arm | Radio not bound | Follow radio controller manufacturer’s binding procedure |
Radio not mapped properly | Check radio mapping charts for correct behavior. Adjust mapping as necessary in ALTA Pro QGroundControl |
Flight Controller boot not successful | Power cycle ALTA Pro. Ensure it does not move during boot If ALTA Pro must move during boot (such as on a moving platform), use Motion Booting |
Low Battery | A low battery error latches and does not allow further take off without a battery replacement. |
Symptom | Potential Cause | Potential Solution |
Unexpected flight behavior | Tuning too high or too low | Revert tuning to the last known working configuration Set tuning back to default values |
Alta Pro seems to "hop" or "dip" at the end of a climb | Hover throttle not set correctly | Change hover throttle to match weight of aircraft. 49% for ~10lb payload, closer to 40% for light aircraft. |
ALTA Pro does not maintain level pitch or roll | Pitch or Roll Trim position not set | Use the ALTA app to set the appropriate pitch and roll trim |
ALTA Pro oscillates or vibrates during flight | Tuning too high or too low | Check flight settings and tuning parameters in the App. Revert tuning to the last known working configuration. Re-tune. |
Propellor Damage | Check for damage to propeller blades. Replace with spares as required. |
Propeller blades unbalanced | Replace with spares as required. Propeller blades are balanced and matched at the factory. |
Hinge or motor misalignment | Thoroughly inspect ALTA Pro following any accident. Contact Freefly for further inspection and assessment. |
Ice on Propellers | Ice build-up is causing vibrations due to unbalanced propellers. Remove ice from propellers before further flights. |
ALTA Pro is sluggish in response to commands | Tuning too low | Check tuning in ALTA Pro and adjust as required |
Flight weight is over limit | Weigh the ALTA Pro and compare to the Allowable Gross Weight table in this manual. Remove weight. |
ALTA Pro ascends or descends when switching between flight modes | Hover Throttle set incorrectly | Follow the instructions listed in the ALTA Pro Flight Parameters section of this manual to adjust Hover Throttle |
ALTA Pro does not maintain heading | Yaw during boot | Re-initialize ALTA Pro while keeping ALTA Pro stationary in all directions |
Unexpected behavior in Position Mode | Position lock not achieved | Monitor ALTA Pro QGroundControl and takeoff only after Position Lock has been achieved with strong GPS signal |
Incorrect heading due to yaw during boot | Re-initialize ALTA Pro while keeping ALTA Pro stationary in all directions |
Compass corruption or calibration | Check surroundings for ferrous objects or magnetic interference. Calibrate the compass. |
ALTA Pro circles a point in Position Mode | Compass calibration is invalid | Calibrate the compass |
Position tuning values too high | Reduce Position tuning values very slightly following the PX4 tuning guide. |
ALTA Pro does not track straight in Position Mode | Compass calibration invalid | Perform a manual compass calibration. |
ALTA Pro does not Return-to-Land when commanded | Position Lock not achieved | Monitor the ALTA Pro QGroundControl to ensure position lock has been achieved with strong GPS signal |
ALTA Pro wobbles when descending | Vertical descent into turbulent air from propellers | Descend at a slight angle relative to vertical so the ALTA Pro does not fly into turbulent air from propeller downwash |
Item
Condition
Altitude
Sea Level, ISA
Winds
Zero
Test radio channels, arming, and disarming behavior after firmware updates to ensure radio mapping has been preserved. Incorrect radio mapping can lead to loss of control. |
Always check to make sure you're running the newest firmware on your Alta X. Firmware can include bug fixes both big and small as well as new features. Click Here to sign up for notifications about Service Bulletins.
Firmware can be downloaded from the support website
Update instructions are here
This release is for Blue aircraft only. Additionally, aircraft on v1.3.111 don't need to update to this.
Summary: Pilot Pro support for Alta X Blue
Release Date: October 2024
Versions in this package:
FMU: v1.3.114
QGroundControl: v1.3.16
Notes
New: Pilot Pro RFD900 support
Known Bug: High System Memory Utilization
If multiple MAVLink streams are enabled (such as FRX and WIFI connectivity) simultaneously, there may not be enough free system memory for flight logs to record successfully. See Service Bulletin SB006 for more details.
Known Bug: Unknown Flight Mode Unknown 1:655360
After updating the Alta X's firmware to v1.4.0+, non-Pilot Pro users will notice an "Unknown 1:655360" flight mode in Alta QGC preventing them from arming. This is a bug that can be worked around by swapping off of whatever fight mode you are on and swapping back. We are working to have a more permanent fix for this issue released as quickly as possible.
Summary: Remote ID integration
Release Date: March 2024
Versions in this package:
FMU: v1.4.12
QGroundControl:
v1.3.12 for Pilot Pro Android
v1.3.13 for Windows, macOS
v1.3.14 for UXV Android
Notes
New: Remote ID integration
Bugfix: QGC Terrain altitude in missions is fixed. Service provider was EOL. Now it uses another service provider.
Known Bug: High System Memory Utilization
If multiple MAVLink streams are enabled (such as FRX and WIFI connectivity) simultaneously, there may not be enough free system memory for flight logs to record successfully. See Service Bulletin SB006 for more details.
Summary: Pilot Pro integration
Release Date: February 2024
Versions in this package:
FMU: v1.3.31
QGroundControl: v1.3.10 for Pilot Pro Android
Notes
New: Added momentary button multi-channel flight mode changing feature for Pilot Pro support
New: Added "Pending" flight mode, which is present until position mode is available on boot
New: Added a command to load default parameters from firmware, rather than using a parameter file.
Important note: First you need to first select your controller model. Go to Parameters, then search for SYS_AUTOSTART. Set this to 4510 for Futaba, or 4511 for Pilot Pro. Then clicking on "Tools > Load parameter defaults" will apply the correct defaults.
Defaulting parameters have F9P rotation by default. HERE2 needs modification by user.
Defaulting parameters require a compass calibration after.
Summary: UXV support for Alta X Blue
Release Date: March 2023
Versions in this package:
FMU: v1.3.111
QGroundControl: v1.3.9 for UXV Android
Notes
New: Added momentary button multi-channel flight mode changing feature for UXV support
New: Added "Pending" flight mode, which is present until position mode is available on boot
New: Added a command to load default parameters from firmware, rather than using a parameter file. In the UXV QGC, go to parameters screen, then click on Tools > Load parameter defaults
Known Bug: High System Memory Utilization
If multiple MAVLink streams are enabled (such as FRX and WIFI connectivity) simultaneously, there may not be enough free system memory for flight logs to record successfully. See Service Bulletin SB006 for more details.
Summary: X9 motor support and logging bugfix
Release Date: June 2022
Versions in this package:
FMU: v1.3.22
QGroundControl: v1.3.8 (unchanged since previous release)
Notes
Hotfix: Fixed an issue that prevented logging from behaving as expected. This issue caused logging to cease functioning, particularly during longer flights.
After applying this update, logging the issue that prevented logging at times will no longer exist.
Features: Adds support for drones shipping with X9 motors.
Installation
Instructions can be found on our Support page under "Updating Firmware" section.
This is the minimum supported version for Alta X with X9 motors.
Summary: Hotfix for Improper Mission Throttle Command
Release Date: January 2022
Versions in this package:
FMU: v1.3.19
QGroundControl: v1.3.8 (unchanged since previous release)
Notes
Hotfix: Fixed invalid throttle setpoint error when transitioning from a piloted flight mode to mission mode. See more details in this service bulletin.
After applying this update, missions can be safely launched while in flight.
Some microSD cards that read/write below minimum specifications may occasionally fail to begin a mission, with the error [mc_pos_control] Auto activation failed with error: Activation Failed. If this occurs, restart the mission. If the issue persists, contact Freefly Support for assistance.
Installation
Instructions can be found on our Support page under "Updating Firmware" section.
Summary: Added support for motor telemetry board to catch motor no start
Release Date: March 2021
Versions in this package:
FMU: v1.3.17
QGroundControl: v1.3.8 (unchanged since previous release)
Notes
Hotfix: Added support for motor telemetry board to catch motor no start. This will prevent arming with specific motor faults that were causing tip over. See more details in this service bulletin.
If an ESC fault is triggered, arming is denied, QGC will pop up a message, LEDs fast flash red lights.
If a telemetry timeout is detected, arming is denied, QGC will pop up a message.
New Feature: Added current consumption to battery data.
In QGC, use the Analyze window (Mac/Windows top toolbar > Widgets > Analyze) to look at BATTERY_STATUS.current_battery (unit: centi-amps), and BATTERY_STATUS.current_consumed
Improvement: Alta X is smoother as it transitions through waypoints. New default configurations file reduces NAV_ACC_RAD from 10m to 2m.
Bugfix: Logging rates were not set properly. Updated telem rates, 20hz for most to match ESC telemetry rate.
Summary: F9P RTK GPS Support and Safety Improvements
Release Date: March 2020
Versions in this package:
FMU: v1.3.x
QGroundControl: v1.3.x
Notes:
New Feature: F9P RTK GPS Support
New Feature: Optional RC disarm toggle to prevent manual disarm in flight
New Feature: Onboard checking of critical parameters
Bugfix: LEDs on ALTA X place a significant load on the 5V EXT bus
Improvement: Check for RTL switch enable before takeoff, warn if no homepoint
Improvement: Don't require reboot when wifi parameters are modified
Improvement: Lockout feature to guide people to only use the ALTA with the Freefly version of the QGroundControl
Summary: Initial ALTA X release
Release Date: September 2019
Versions in this package:
FMU: v1.2.x
QGroundControl: v1.1.x
Freefly's Skyview allows for payloads mounted on the top-side of the aircraft.
1.
Remove the (x4) M4x14 combo head bolts that secure the isolator assembly to the bottom of the aircraft.
2.
Unbolt and remove the center battery support. Using a 10mm wrench, remove the 4 posts from the bottom of the chassis.
3.
Secure the Skyview landing gear spacer to the chassis using (x4) M4x14 combo head bolts. Attach the Skyview landing gear onto the spacer using the TITH quick release.
4.
Unbolt (x4) M4x10 socket heads and remove the spacer from the isolation assembly.
5.
Attach the TITH plug using (x4) M4x8 socket head cap screws.
6.
Attach the vibration isolation assembly to the stiffener ribs on top of the chassis using (x4) M4x14 Combo head screws.
7.
ALTA X is now ready to fly in Skyview mode!
1.
Connect the FPV camera cable to the FPV extension located inside the chassis at the base of boom.
2.
Screw the FPV mount to the top of the chassis with the (x4) M3x14 screws and washers.
3.
Screw the FPV camera bracket to the FPV mount with (x2) M2.5x5 screws and washers.
4.
Screw the FPV camera to the bracket using the included (x4) M2x4 screws and washers.
5.
Plug the FPV cable into the back of the camera.
1.
Connect the VTX cable to the VTX extension located inside the chassis at the base of boom #3
2.
Screw the VTX and its mount to the interior of the closeout panel adjacent to the base of boom #3 using 2x M3x10 screws. Then plug in the VTX cable. This can be done without removing the closeout panel.
3.
Route the SMA mount and cable through the access port at the base of boom #3. Ensure you do not unplug the u.FL connector during this step.
4.
Screw the SMA mount to the accessory mounting pattern using 2x M3x5 screws
5.
Attach the included TBS Triumph Antenna to the SMA jack and tighten.
MōVI can be attached to either the top or bottom of ALTA Pro via the Freefly Toad In The Hole (TITH) quick release.
ALTA Pro comes pre-configured for GroundView mounting of MōVI.
Prepare your MōVI for GroundView flight (see MōVI manual)
Attach landing gear
Install TITH receiver on MōVI
Connect MōVI to bottom Toad
Prepare your MōVI for SkyView flight.
Remove landing gear (see MōVI manual)
Install TITH receiver on MōVI (see MōVI manual)
Connect and secure the supplied inverted landing gear to the bottom Toad.
Remove Battery Mount Quick Release.
Connect MōVI to top Toad.
Top mounting is not supported by the MōVI M10 without the keyed pan tube upgrade kit. If you are unsure whether your M10 has the upgrade kit, contact Freefly Customer Support for additional info.
ALTA Pro features a highly sensitive 3-axis magnetometer, gyroscope, and accelerometer that measure specific force, angular rate, and earth’s magnetic field to infer heading and maintain stability. Occasionally, the sensors will require recalibration.
Mount a pair of batteries onto ALTA Pro.
Plug in the batteries to power up the aircraft.
Open the ALTA Pro QGroundControl and connect to ALTA Pro.
Navigate to the Sensors tab under Vehicle Setup.
Available sensors are displayed as a list of buttons beside the sidebar. Sensors marked with green are already calibrated. Sensors marked with red require calibration prior to flight.
Click on the button for each sensor to start its calibration sequence and follow the instructions provided in the ALTA Pro QGroundControl.
Start by selecting Set Orientations and set the autopilot orientation
Autopilot Orientation: ROTATION_YAW_270
Follow the instructions below to perform a compass calibration on ALTA Pro. Compass calibrations should be done when flying in a new location or when ALTA Pro QGroundControl prompts a calibration.
Click the Compass sensor button.
Click OK to start the calibration.
Place the vehicle in any of the orientations shown in red (incomplete) and hold it still. Once prompted (the orientation-image turns yellow), rotate the vehicle around the specified axis in either/both directions. Once the calibration is complete in that orientation the associated image on the screen will turn green.
Repeat the calibration process for all vehicle orientations.
Follow the instructions below to perform an accelerometer calibration on ALTA Pro. Accelerometer calibrations should only be done when prompted by ALTA Pro QGroundControl.
Click the Accelerometer sensor button.
Click OK to start the calibration.
Position the vehicle as guided by the images on the screen. This is very similar to compass calibration.
Follow the instructions below to perform a level horizon calibration on ALTA Pro. Horizon calibrations should only be done if the horizon (as shown in the HUD) is not level after completing Accelerometer calibration.
Click the Level Horizon sensor button.
Place the vehicle in its level flight orientation on a level surface.
Click OK to start the calibration.
Batteries may be installed on either the top or bottom of an ALTA Pro and are always mounted opposite of the payload location. In both locations, battery packs are secured with silicone straps tensioned across the packs. The straps are secured using studs located on either side of the packs.
1.Place battery retention strap studs at the appropriate height to hold the battery packs firmly in position.
2. Adjust battery stops to fit battery packs.
3. Attach the single-hole end of the battery retention straps to the studs.
4. Place battery packs on the battery tray.
5. Tension and secure battery retention straps.
Pinch the battery tray handles and slide to remove it from landing gear.
2. Attach the single-hole ends of the battery retention straps to the studs on the battery tray.
3. Place battery packs onto battery tray.
4. Tension and secure battery retention straps.
5. Slide tray with battery packs back into landing gear until the tray latches in place.
6. Ensure tray and battery packs are secure.
Do not install batteries directly on the lower battery tray if a Toad adapter is also installed. Either remove the Toad adapter or use the Quick Release Battery Tray. |
Always completely secure the inverted landing gear by closing the TITH quick release lever. Inverted landing gear that are not completely attached can rotate and unplug battery leads. |
ALTA Pro’s compass should be regularly calibrated, especially when traveling between different geographic locations. For best results, it is recommended to perform manual compass calibrations away from ferrous objects, buildings and vehicles. In addition, concrete can contain steel rebar which may influence compass calibrations
Perform calibration without a payload attached and all motor booms extended and latched. Folded booms will cause an inaccurate calibration.
It is recommended to use two people to perform the compass calibration as it requires handling and rotating ALTA Pro.
Always secure battery packs with both battery retention straps. |
Ensure both battery packs are at a similar state of charge (a full pack voltage difference less than 0.5V) prior to connecting them to ALTA Pro. Plugging in two dissimilarly charged packs could cause one pack to rapidly discharge into the other and damage the batteries or cause a battery fire. |
Only use packs that are identical in their capacity and at a similar condition. Using a pack with another that is larger, or has many more charge/discharge cycles, can damage the battery packs. |
Always refer to and follow the battery manufacturer’s instructions, recommendations and guidelines for battery handling. |
When plugging in battery packs, ensure the polarity is correct. Positive is indicated by a red power lead, and negative/ground is indicated by a black power lead. Reversing polarity will damage ALTA Pro’s electronics. |
ALTA Pro can be used with a variety of radio controllers. Different radio controllers can map functions to different channels, so properly mapping controller channels to ALTA Pro functions is an important step before flying. Radio calibration and channel mapping are performed using the ALTA Pro QGroundControl program or app.
If you are uncertain about your radio channel mapping, obtain assistance from an experienced pilot or from Freefly Customer Support.
Calibrating any compatible radio is done using the ALTA Pro QGroundControl app. This only needs to be done when using a new radio with the ALTA Pro; ALTA Pros that were bought with a radio have already gone through the Calibration and Mapping procedures.
Power the ALTA Pro by plugging in a USB-C cable to the expansion port.
The expansion port is located under the closeout between booms 1 and
Once connected, the ALTA electronics will be powered and you may turn on the radio.
Open the ALTA QGroundControl program, navigate to the Radio tab in the Vehicle Setup menu, and then initiate the radio calibration.
Set the transmitter mode radio button that matches your radio configuration (this ensures that QGroundControl displays the correct stick positions for you to follow during calibration).
Move the sticks to the positions indicated in the text (and on the radio image). Press Next when the sticks are in position. Repeat for all positions.
When prompted, move all other switches and dials through their full range (you will be able to observe them moving on the Channel Monitor).
Press Next to save the settings.
Radio channel mapping is accomplished with the Alta Pro Qgroundcontrol App. Prior to mapping channels, ensure your radio controller and receivers are properly installed and calibrated. Refer to the Radio Installation section of this manual and your radio controller’s documentation.
Power the ALTA Pro by plugging in a USB-C cable to the expansion port. The expansion port is located under the closeout between booms 1 and 2
Once connected, the ALTA electronics will be powered and you may turn on the transmitter.
Open the ALTA QGroundControl program, navigate to the Flight Mode tab in the Vehicle Setup menu for access to the channel mapping.
Channel mapping can be customized by the user on this menu to fit their preferences. Below is a quick description of the items mapped to the transmitter and suggested channels for each mapped item.
The following functions can be mapped to radio controller channels. These are found in the Radio section of the Configurations menu in ALTA QGroundControl. Each function is also represented by a chart that responds to control input allowing for quick verification of mapping settings.
Use this to select the appropriate receiver. The following guide is compiled for convenience. For complete specifications and which mode will work with your receiver, refer to your radio controller or receiver manuals. DSM2/DSMX are typically used by Spektrum controllers SBUS is typically used by Futaba controllers
The Pitch, Roll, Yaw and Throttle controls are the basic flight controls and are mapped to the two radio controller sticks.
The required Mode Switch selects between the three different flight modes: Manual, Altitude, and Position. A three-position switch is recommended to select the three different modes. However, a two-position switch may be used, but will only allow for selecting between Manual Mode and (depending on radio controller mixes) either Altitude Mode or Height Mode
The optional Return to Home Switch selects between the different Return-to-Land (RTH) functions. At minimum a two-position switch is required for the Home Switch functions to select between RTL Off, and initiate RTL functions.
The following radio channel mapping configurations are recommendations only and can be set in ALTA QGroundControl. Depending on exact radio models, these may help as an initial configuration. However, it is up to the pilot setting up ALTA Pro for flight to determine if these settings are appropriate.
If ALTA Pro is purchased as a bundle with a transmitter or FPV kit, these will be factory installed and ALTA Pro will be ready to fly out of the box! For customers installing their own receivers or FPV systems, please follow the instructions below. The guide details the first time setup process for ALTA Pro 8.
Radio Controller Receiver
ALTA Pro requires the installation of a radio control system. S.Bus, S.Bus2, DSM2, and DSMX receiver types are supported. Some ALTA Pro emergency control modes (Return-to-Land and Autoland) may vary depending on the type of radio. Refer to the Flight Controller Modes section of this manual for additional details.
Additionally, ALTA Pro supports radio receiver diversity using S.Bus, S.Bus2, DSM2 and DSMX receivers. This means two receivers may be installed, and the Autopilot flight controller will automatically use the receiver with the best signal quality. Using two receivers requires the radio controller to be bound to both receivers. Refer to the instructions provided with your radio controller to complete the binding process. For Spektrum radios a receiver is required to bind the satellites to a radio controller.
Locate the noted closeout panels used for receiver installation (between booms 2 & 3 and 6 & 7).
2. Remove side closeout panel with radio wires using a 2.0mm hex driver.
3. Plug signal wire into receiver.
4. If using telemetry, plug the telemetry wire located in the closeout between booms 2 & 3 into the primary receiver (refer to the Voltage Telemetry section).
5. Feed receiver antenna into lower antenna tube.
6. Secure receiver using the provided double-sided tape to inside of receiver housing.
7. Reattach closeout panel.
8. Route antenna wires into the two antenna tubes below ALTA Pro chassis.
9. Repeat installation process for dual receivers (if applicable).
Locate the noted closeout panels used for Spektrum receiver installation (between booms 3 & 4 and 7 & 8).
2. Remove side closeout panel using a 2.0mm hex driver.
3. Feed signal cable through panel grommet.
4. Reattach closeout panel.
5. Plug in receiver/satellite into signal cable.
6. Attach receiver/satellite to exterior using double-sided tape.
7. Repeat steps 1-6 for dual receivers (if applicable).
ALTA Pro supports battery voltage telemetry on Futaba radios when using a receiver that supports an external voltage sensor, such as the R7008SB. Installing the telemetry wire is easiest when initially installing the receiver. To set up ALTA Pro with voltage telemetry for Futaba radios:
Installing Voltage Telemetry for ALTA Pro 8
Remove the closeout panel between booms 2 and 3 with a 2.0mm hex driver and locate the radio receiver wire bundle.
2. Identify the voltage sense wire and connector in the bundle. It is the small, 2-pin connector attached to a black and red wire pair.
3. Connect the cable to the voltage sense port on the primary Futaba receiver.
4. Reattach the closeout panel.
ALTA Pro can power a variety of first person view (FPV) cameras and transmitters, as well as add informational on-screen display (OSD) elements to aid in FPV flying. Using an FPV ground station display can be a useful method of monitoring status, performance, and flight parameters of the ALTA Pro during flight.
Three FPV transmitter cables are included with each ALTA Pro. Each supplied cable has one side with a connector that mates with a cable located in the closeout panel between booms 1 & 2. The other end of each supplied cable has specialty connector(s) to run Immersion RC, Fatshark, BOSCAM, or BOSCAM compact FPV transmitters. For cable identification, refer to the FPV Transmitter installation instructions.
A single camera cable is provided and is configured to run a Ready Made RC camera (model RMRC-700XVN recommended). This cable mates with a pre-installed cable located behind the closeout panel between booms 1 & 8.
Camera and transmitter cables follow this wiring scheme:
FPV Camera ALTA Pro 8 Remove the front closeout panel with a 2.0mm hex driver.
2. Locate the FPV camera cable included in the ALTA Pro package.
3. Pass the FPV cable through the closeout panel grommet and connect to the mating FPV camera lead inside ALTA Pro. Connect the other end directly to the camera.
4. Replace front closeout panel.
5. Mount FPV camera on the FPV mount on the front ALTA Pro using the provided hardware.
Mount FPV transmitter on the provided carbon fiber accessory mount plate
Attach accessory mount to boom 2 with M3x6 flathead bolts.
3. Locate the appropriate FPV transmitter cable. The following cables are included:
a. ImmersionRC/Fat Shark (cable with two connectors)
b. BOSCAM/SkyZone (cable with one large connector)
c. Compact BOSCAM (cable with one small connector)
4. Use a pair of dykes to cut the zip tie holding the braided transmitter cable to the corrugated tube on boom 2
5. Pass transmitter cable through the underside of the hinge, connect to the correct FPV transmitter cable, and plug into the FPV transmitter.
6. Zip tie the FPV transmitter lead to the boom 1 cable bundle and the FPV Transmitter mount for strain relief. The boom should be fully folded when the transmitter lead is zip-tied to cable bundle.
A number of properties and components can be adjusted or added to the FPV On Screen Display (OSD) using QGroundControl. To access these settings go to the the ALTA settings group in the Parameters tab of the Vehicle Setup menu.
The following components are displayed as text items, and can be configured to display as big or small letters, or no letters, effectively turning off the display.
The artificial horizon displays pitch and roll information in the center of the FPV display in the form of a horizon line and accompanying elements.
The following components can be turned on or off. These components do not have adjustable settings.
Different Isolator Cartridges can be used to fine tune vibration damping performance for different payload weights or ambient temperatures. Three isolation cartridge styles are provided with ALTA Pro. The cartridges have colored o-rings: red for light payloads or cold ambient temperature, teal for medium payloads or typical ambient temperature, and black for heavy payloads or hot ambient temperature. Flight testing may be required to determine the optimal isolator for a given setup.
To install, place the cartridges between the top chassis plate and the battery plate. Ensure they are engaged in the track features and are parallel with the chassis and battery plate. Push inwards fully until they click, indicating the cartridges are locked in place. Pull outwards on the cartridge to ensure it is locked.
To remove, pinch the cartridge latch to unlock it from the battery and chassis plate, and slide it outwards to disengage. Simultaneously pull the battery and chassis plate apart while pulling the cartridge outward.
Function
Channel Number
Direction
Pitch
2
Normal
Roll
1
Normal
Yaw
4
Normal
Throttle
3
Reverse
Mode Switch
5
Normal
Home Switch
6
Normal
Function
Channel Number
Direction
Pitch
3
Reverse
Roll
2
Reverse
Yaw
4
Reverse
Throttle
1
Normal
Mode Switch
6
Reverse
Home Switch
7
Normal
Cable Color
Function
Red
+12 VDC
Black
Ground
Yellow
Video signal
Name
Options
Description
OSD_ENABLE
Enabled/Disabled
Turns OSD on or off
OSD_PAL_NTSC
PAL / NTSC
Indicates the FPV video camera format to PX4
OSD_UNITS
Metric / Imperial
Changes the displayed units
OSD_HOR_OS
Min: 1
Centers the OSD components horizontally
OSD_VER_OS
Min: 1
Centers the OSD components vertically
OSD_LEFT_OS
Min: 1
Controls the margin to the left of the OSD
OSD_LOWER_OS
Min: 1
Controls the margin underneath the OSD
OSD_RIGHT_OS
Min: 1
Controls the margin to the right of the OSD
OSD_UPPER_OS
Min: 1
Controls the margin above the OSD
OSD_BAT_ALARM
3.000 - 4.200
Sets battery cell levels that trigger an on screen warning
OSD_MAX_ALTITUDE
Min: 1.000
Default: 121.900
Creates an on screen warning when exceeding the set max altitude (meters)
OSD_MAX_CLIMB
Min: 0.000
Default: 3.500
Creates an on screen warning when exceeding the set max climbing rate (meters per second)
OSD_MAX_RANGE
Min: 1.000
Default: 1000.000
Creates an on screen warning when exceeding the set max range (meters)
OSD_MAX_VELOCITY
Min: 1.000
Default: 20.000
Creates an on screen warning when exceeding the set max velocity (meters per second)
OSD_GND_BRIGHT
0 - 16
Increases of decreases the brightness of the ground
OSD_SKY_BRIGHT
0 - 16
Increased and decreases the brightness of the sky
Name
Description
OSD_SHOW_HEIGHT
Displays the height of ALTA Pro from its starting point in meters or feet
OSD_SHOW_VARIO
Displays the vertical speed of ALTA Pro in meters per second or feet per minute
OSD_SHOW_HEADING
Displays the magnetic heading of ALTA Pro and is measured in degrees
OSD_DISTANCE
Displays the horizontal distance along the ground ALTA Pro is from the initialization position in meters or feet
OSD_GROUNDSPEED
Displays the ground speed of ALTA Pro in meters per second or knots
OSD_SHOW_BATTERY
Displays the voltage of the flight battery packs
OSD_SHOW_TIME
Displays the time of the flight in minutes and seconds
OSD_SHOW_GPS
Displays the number of GPS satellites in view
OSD_SHOW_GPSHACC
Displays the horizontal accuracy of the GPS signal in meters or feet
OSD_SHOW_LATLON
Displays the GPS derived latitude and longitude coordinates of ALTA Pro
OSD_ROLL_MARKER
Adds indicators to the artificial horizon that indicate changes in roll
OSD_SHOW_ATT
Adds an attitude indicator on screen
OSD_SHOW_BATTERY
Adds a battery voltage indicator on screen
Name
Options
Description
OSD_ROLL_MARKER
Off-Small-Large
Turns off all artificial horizon components
OSD_PITCH_SCALE
1 - 200
Allows for scaling of the artificial horizon markings to compensate for FPV cameras of different field views
OSD_PITCH_IN
1 - 180
Sets the number of degrees between pitch markings when the artificial horizon ladder is used
OSD_ROLL_SCALING
1 - 200
Allows for scaling of the artificial horizon markings to compensate for FPV cameras of different field views
Name
Description
OSD_HEADINGARROW
Displays an arrow that points in the direction of north
OSD_HOMEARROW
Displays an arrow that points in the direction of the initialization point
OSD_VARIOGFX
Displays a bar on the right of the screen that scales with vertical speed. The bar will increase in length up to indicate a climb, or down to indicate a descent
OSD_SPEEDGFX
Displays a bar on the left of the screen that scales with the forward/rearward velocity component
The bar will extend up to indicate forward velocity, or down to indicate a rearward velocity
OSD_SIDESLIPGFX
Displays a bar on the bottom of the screen that scales with the side-to-side velocity component
The bar will extend left to indicate leftward velocity, or right to indicate rightward velocity
Make sure to reset all trims and subtrims to zero before continuing with calibrating and mapping your radio.
This wire is already connected to an in-line fuse. Soldering a fuse into this wire is not required.
It is the responsibility of the pilot to see and avoid other aircraft, people, or obstacles. Always maintain direct line of sight with ALTA Pro during flight, use visual observers as operations require, and follow local regulations regarding see-and-avoid requirements.
Do not short the pins of the FPV transmitter connector located on the pre-installed FPV transmitter lead in the ALTA Pro. Doing so could damage the on-screen display circuit. If using a multimeter to check the pins, first connect one of the provided transmitter cables, then take voltage readings from the transmitter cable.
Always ensure isolator cartridges are locked in place before flying ALTA Pro. Isolator cartridges that are not locked can cause the payload to loosen and change ALTA Pro’s fundamental flying characteristics. |
The folding propellers include two balanced carbon fiber propeller blades attached to propeller hubs, which are themselves secured to the motors. The propellers installed on booms 1, 3, 5, and 7 spin clockwise when viewed from above ALTA Pro, and the propellers installed on booms 2, 4, 6, and 8 spin counterclockwise when viewed from above.
For information on propeller installation and maintenance, refer to the Maintenance section of this manual.
Over time, the bolts that hold the propeller blades to the propeller hub can loosen due to vibration. To check propeller bolt tightness, twist the propeller about its length. If there is free play, the propeller bolt is too loose. Use the provided 2.5mm hex driver and wrench to tighten the bolt and nut that secure the propeller blade just enough to remove the play.
ALTA Pro’s Flight Controller comes pre-tuned for a wide variety of payloads and flying conditions. Generally, additional tuning is not required to fly ALTA Pro, and will only need to take place if more customization of control feel is desired. Default tuning values are included in Appendix A, Default Tuning Values.
Parameters fall into three categories: Rate, Attitude, and Position. Typically, tuning should take place in that order, ensuring Rate parameters are set first, then moving to Attitude parameters, and finally Position parameters.
Before tuning, users should read and become familiar with the .To tune ALTA Pro, open the ALTA Pro QGroundControl connect to your ALTA Pro and navigate to the Multicopter Attitude Control and Multicopter Position Control parameters groups under the Parameter Tab in the Vehicle Setup menu. Once you have found the parameter pages follow the instructions in the .
The home switch has three positions, however only the top toggle position will turn RTL on.
(Bottom/Middle Toggle Position)
This is the normal switch position and does not initiate an RTL command.
(Top Toggle Position)
This manually initiates the RTL function. In RTL, PX4 will command ALTA Pro to climb to the set minimum altitude and then guide the unit’s position to the home point.
ALTA Pro features swan-neck booms that fold compactly for travel. They are secured in an open position for flight using over-center latches.
Remove ALTA from case.
2. Unfold ALTA Pro Remove ALTA from case. Fold down all six/eight boom retention clips.
3. Open ALTA Pro booms. ALTA Pro can become unbalanced and tip over while unfolding booms individually, so unfold opposite boom pairs simultaneously to keep balance.
4. Snap shut all eight boom latches until they click and latch.
5. Visually confirm all latches are seated properly
6. Remove prop protectors.
Secure props with prop protectors.
2. Unlatch all eight booms.
3. Close ALTA Pro booms in opposing pairs to keep balance.
4. Fold up all eight boom retention clips to secure booms.
ALTA Pro QGroundControl allows users to alter many additional parameters that do not affect the Flight Controller characteristics of ALTA Pro. These parameters are used to select neutral points using trim or to set maximum or minimum values for a variety of different settings. These settings can be found under the Tuning and Parameters tabs in the Vehicle Setup menu.
We have compiled a list of the most important ALTA Pro Flight parameters in the Tuning Tab under the Vehicle Setup Menu. Ensure you have an understanding of what the characteristic of the ALTA Pro a parameter effects before changing it.
QGroundControl allows users to customize ALTA Pro’s fail safes and safety parameters. These options are found under the Safety tab in the Vehicle Setup menu.
This set of parameters allows users to select when battery levels warnings are triggered and what the aircrafts failsafe is when this threshold is met.
This parameter determines the flight mode ALTA Pro will enter if it detects a Loss-of-Signal (LOS). Selecting ‘Land at Current Position’ will cause ALTA Pro to Autoland in place when the LOS is detected. Selecting ‘Return to Land’ will cause ALTA Pro to Return-to-Land and then Autoland when the LOS is detected.
Used to set the RTL altitude, loiter time, and RTL behavior.
This adjusts the descent rate of the ALTA Pro during Autoland in meters per second. This value is applied to the Autoland descent profile for the final 15 meters above the ground until landing. This option also provides the option to automatically disarm ALTA Pro after landing.
ALTA Pro has three primary flight control modes which are selected using the Mode Switch: Manual Mode, Altitude Mode, and Position Mode. ALTA Pro also has two emergency control modes, Return-to-Land and Autoland, which are available only during certain situations. For additional information, refer to the sub-section associated with each emergency control mode.
In Manual Mode, ALTA Pro will only stabilize its attitude. At neutral control input (middle pitch and roll stick position), ALTA Pro will attempt to remain level. Throttle control is direct.
Altitude Mode changes the throttle stick behavior to command climb and descent rates. The higher the throttle stick position, the faster ALTA Pro will climb. Conversely, the lower the throttle stick position, the faster ALTA Pro will descend.
When the throttle stick is centered, ALTA Pro will enter Altitude Hold. In Altitude Hold, ALTA Pro will maintain a target altitude and try to correct for drift. If a disturbance moves ALTA Pro away from this target altitude, ALTA Pro will climb or descend to return to the target altitude.
Position Mode changes the pitch/roll stick behavior to command ground speeds. Pitch and roll stick deflection will command fore/aft and left/right ground speeds respectively. Controlling altitude in Position Mode is the same as in Altitude Mode.
With pitch and roll controls centered, ALTA Pro will enter Position Hold. In Position Hold, ALTA Pro will maintain its position over a given point on the ground and correct for disturbances.
Position Mode requires a strong GPS signal and communication with a minimum of 6 satellites. If a weak signal is present, ALTA Pro will not enter Position Mode. If the GPS signal degrades while in Position Mode, ALTA Pro will automatically revert to Manual Mode.
Within Position Mode ALTA Pro enters Classic Control style which use the tuning parameters to control translational position over the ground.
Return-to-Land Mode will command ALTA Pro to fly back to the defined Home Point. When ALTA Pro first acquires a GPS position, it sets this as the Home Point of the flight. See the Radio Channel Mapping section in this manual for more information on setting up the Return-to-Land Switch.
RTL can be initiated automatically with an LOS event if it is selected as the Signal Loss Action in the ALTA App. RTL can also be initiated manually while flying in Position Mode and setting the Home Switch to RTH.
When initiated manually using the Home Switch, ALTA Pro will fly back to the Home Point. ALTA Pro will hover above the home point and wait for a set amount of time and then land. The pilot can cancel the RTL procedure by returning the Home Switch to the middle or bottom position.
During an LOS event, RTL followed by Autoland will be initiated automatically if ‘RTL’ is selected as Signal Loss Action in the ALTA App and an S.Bus/S.Bus2 or DSM2/DSMX radio system is in use. ALTA Pro will first check its current altitude against Safe Height. If ALTA Pro is below the Safe Height, it will climb to Safe Height. If ALTA Pro is above Safe Height, it will remain at its current altitude. Next, ALTA Pro will fly back to the home position at the RTL Speed set in the ALTA Pro QGroundControl. Finally, upon reaching the home position, ALTA Pro will loiter for 15s and then begin to Autoland.
Autoland will only initiate if one of the following conditions is met and the Autoland is setup as the failsafe for these events. See the Safety Parameters to customize ALTA Pro’s failsafe behaviors:
Loss of Signal (LOS) occurs and ‘Land’ is selected as the Signal Loss Action in the ALTA app
At the end of a LOS Return-to-Land event when using S.Bus/S.Bus2 or DSM2/DSMX radio systems
Battery exhaustion failsafe is tripped and the failsafe is set to return to land in ALTA Pro QGroundControl.
Geofences are currently not supported by Freefly. We recommend that you do not use this feature. If this feature is used, set the Geofence breach action to Warning; Hold, RTL, and Terminate should not be used as they may result in crash or an ALTA Pro that cannot return to its home position.
Waypoints mode allows ALTA Pro to execute a predefined autonomous waypoint missions that have been uploaded to the flight controller via ALTA Pro QGroundControl (QGC). For more information on all of the different options and abilities built into the Waypoint functionality you can read more in the .
Only use propellers supplied by Freefly on ALTA Pro. Use of third-party propellers can cause motor instability, overheating, and failure.
In rare cases propellers can experience icing, this occurs when ice begins to form on the tips and underside of the blades due to temperature and humidity. This will cause the props to become unbalanced, increases drag and reduces lift. Flying with iced blades can be dangerous and is not advised
Do not overtighten, or the propeller may fail to unfold completely during motor start up, leading to excessive vibration.
Tuning can change the fundamental flying characteristics of ALTA Pro. It is possible for ALTA Pro to become unstable or even uncontrollable if values are set too high or too low. Only change tuning parameters in small increments and with caution. Always test new tuning configurations in open areas away from people or obstacles. |
While ALTA Pro QGroundControl allows users to tune their ALTA Pro in the air we suggest changing tuning values while ALTA Pro is on the ground as a precautionary measure. |
When making configuration changes with ALTA Pro QGroundControl, make sure to save each parameter as you change them! |
Care should be taken when storing ALTA Pro in its case to avoid damaging the GPS antenna and the telemetry radio. When storing ALTA Pro in a non-standard case, remove all antennas to ensure there is minimal/no contact between the external electronics and the case. |
Use the search bar at the top of the Parameters tab to quickly find any settings! |
You may need to update the Hover Throttle when changing payloads to optimize ALTA Pro’s flight performance. The Hover Throttle settings can be found under the ALTA Configuration Setup tab or in the Parameters tab. |
Altitude Mode and Position Mode are assistive only and are not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required. |
Always center the control input sticks on the radio controller when switching between control modes to prevent unexpected movement of the ALTA Pro. |
Altitude Mode is assistive only and is not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required. |
Position Mode is assistive only and is not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required. |
Flight using Position Mode in areas of degraded GPS signal, such as near buildings or under dense tree cover, is not recommended. The automatic reversion to Manual Mode can cause unexpected, abrupt changes in flight behavior. |
Flight using Position Mode with Compass enabled in areas near large ferrous objects or high magnetic flux is not recommended. Incorrect compass readings can result in loss of control. Compass assist can be disabled in the ALTA App if desired. |
ALTA Pro must have a GPS lock on its home position in order to start a waypoints mission. |
Full functionality of the PX4 LOS features is only available on an S.Bus/S.Bus2 or DSM2/DSMX receiver. |
Autoland and Return-to-Land will only occur if these settings are turned on in the aircraft parameters. Geofences |
DO NOT CHANGE FLIGHT CONTROLLER TUNING VALUES WITHOUT A FULL UNDERSTANDING OF THE TUNING PROCESS. A poorly tuned sUAV is dangerous and can result in property damage, injury, and death. |
Once RTL has been initialized it will continue to return to home unless the Home Switch is returned to RTL Off. |
Users should understand the effect of parameter settings before changing them. Incorrect or poorly chosen parameters can result in crashes, injury, or death. You can always reset all parameters to defaults by following the instructions.
If you are unsure of what characteristics a parameter effects please reach out to Freefly’s for clarification.
ALTA Pro automatically logs flight and control data when ALTA Pro is armed for flight. Data is recorded to the autopilot and are accessed through the Log Download tab in the Analyze menu of ALTA Pro QGroundControl.
Summarized flight data from an individual flight can also be viewed immediately after landing by placing a downloaded log file into PixHawk Flight Review. Full details about the review process can be found in the Flight Reporting section of the Pixhawk User Manual.
A native data analyzer is being developed and will be available on the ALTA Pro Support page.
The boom-end mounted Orientation Lights indicate both the orientation of ALTA Pro in flight and the status of the individual motor Electronic Speed Controllers (ESCs) during other operational phases. The following table shows the different meanings of the light colors in the various operational phases.
ALTA Pro QGroundControl includes a flight status monitor that displays information about the health of the ALTA Pro and the various controls that can be selected.
Flight Phase
Light Color
Meaning
Standby
Flashing Green
ESC booted normally
Armed
User-defined
Nominal Status
Flight
User-defined
Nominal Status
Firmware Update
Pink
ESC firmware is updating
Icon
Name
Description
Boot
Indicates if the PX4 has completed its booting process and whether it was successful. Any issues that prevented a normal boot are indicated here.
Battery
Displays the voltage of the battery packs.
Status
Displays the state of the PX4 flight controller.
Radio
Displays if the PX4 detects a radio controller signal. A LOS warning is displayed if no signal is present.
GPS
Displays if PX4 has resolved a GPS fix or not.
Sats
Displays the number of GPS satellites in view and being received. A minimum of 6 satellites are required in order to enter Position Mode.
Lock
Clicking on this icon displays whether a position lock is ready, indicating a valid GPS fix and good heading. This is required before the Autopilot will allow switching into Position Mode.
Altitude
Displays the current height control mode: Manual, Vario if in Height or Position mode and climbing or descending, and Hold.
Attitude
Displays the current attitude control mode.
Compass
Displays the status of the compass and if the Autopilot believes the compass readings are good or bad. If Bad, the compass may require recalibration (see the Compass Calibration section in this manual).
Speed
Displays ground speed.
Flight Time
Displays the amount to time the aircraft has been flying.
The emergency procedures listed in this section are the recommended practices for handling the aircraft in the event of an aircraft emergency. This guidance should be considered and applied as necessary.
The risk of an emergency can be reduced substantially through proper aircraft maintenance, by performing thorough inspections before and after all flights, and with careful pre-flight planning.
Emergency situations are dynamic events, and not all conditions or procedures can be anticipated or applied during the event. These procedures are not a substitute for a thorough understanding of aircraft systems and sound pilot judgment.
In general, if an emergency occurs, three basic actions can be applied to most situations:
Maintain aircraft control—Small emergencies can quickly escalate if the pilot is distracted attempting to troubleshoot the problem. Always maintain visual contact with the aircraft during an emergency to reduce the likelihood of losing orientation.
Analyze the situation—Once the aircraft is stabilized, begin to assess the cause of the emergency if practical.
Take appropriate action—In many cases, the appropriate action will be to land the aircraft as soon as possible. Always consider the safety of yourself and others before attempting to save the aircraft in an emergency.
Prior to start, check the surrounding area to ensure people and objects are clear of ALTA Pro and its props. Also ensure that there are no people or objects between the ALTA Pro’s takeoff location and its intended flight path.
Ensure that ALTA Pro QGroundControl shows all sensors are calibrated and ready for flight.
To start the motors, hold full low throttle and full right yaw. Ensure that all the motors are spinning. Raise RPMs slightly and move the pitch, roll, and yaw controls slightly. ALTA Pro should pitch, roll, and yaw as commanded due to isolator cartridge flex. Ensure that the ALTA Pro behaves as expected. If it does not, shut down ALTA Pro and ensure the propellers are installed in the correct orientation and radio settings are correct.
After checking flight control directions, advance the throttle directly from idle to hover throttle. Prior to takeoff, do not advance throttle stick above idle until prepared for flight as this can spool up motors undesirably. While throttling up for takeoff, do not loiter in ground effect. Once in flight, use the Mode Switch to select between Manual, Altitude, or Position Mode only after first confirming proper flight performance in Manual Mode.
Fold propeller blades and install foam Prop Protectors to decrease the risk of damaging the propellers while packing ALTA Pro. Keeping ALTA Pro on the payload or landing gear easily facilitates the folding process as ALTA Pro may be turned on the Toad In The Hole adapter while folding the propellers and booms. Folding the booms in opposing pairs can help maintain balance and reduce the likelihood of tipping.
Make sure that the handle is aligned front-to-back with the battery leads facing to the right when putting ALTA Pro in the included case. Pay special attention to the external GPS, 900/868MHz Telemetry radio and optional accessories if installed (FPV camera and Tx) when putting the ALTA Pro back into its case.
Item
Action
1.
Propellers
FOLD and PLACE inline with booms
2.
Prop Protectors
INSTALL
3.
Boom Latches
UNLOCK
4.
Booms
FOLD
5.
Boom Retention Clips
EXTEND
6.
Payload
REMOVE
7.
ALTA Pro
INSERT into case
Item
Action
1.
Prop Area
CLEAR
2.
Mode Switch
MANUAL
3.
Home Switch
UP/OFF
4.
Radio Controller
VERIFY CORRECT MODEL
5.
Telemetry (if equipped)
CHECK OPERATION
6.
GPS Signal
LOCKED
7.
ALTA Pro
ARM
8.
Status Light
VERIFY OFF
9.
Orientation Lights
VERIFY USER-DEFINED COLOR
10.
Motors
START and VERIFY OPERATION
11.
Flight Controls
VERIFY CORRECT
12.
Throttle
ADVANCE directly to hover
ALTA Pro’s props spin at a high RPM and the ends of the blades move at high speeds. ALTA Pro’s props can cause severe injury or death or cause damage to objects while rotating. Always ensure the area surrounding the props and ALTA Pro is clear of people or objects prior to starting the motors.
Do not approach ALTA Pro while it is armed or motors are spinning.
Do not make large yaw commands while on the ground with the inverted landing gear installed. Large yaw commands can cause instability.
Only take off in Manual Mode or let the ALTA Pro take off autonomously when doing a waypoints mission. Attempting to take off in Altitude or Position Modes may cause ALTA Pro to tip over.
Altitude Mode and Position Mode are assistive only and are not a replacement for pilot skill and ability. Pilots should be proficient in Manual Mode flight in order to react to emergency situations as required.
Check that the payload is secure by checking that the Toad In The Hole quick release lever is pushed in and that the payload does not slip. Check that all isolator cartridges are locked in place, especially if they have been recently replaced.
The blades should be checked for damage, including nicks and scrapes. If a propeller blade has been nicked enough that it catches a fingernail, it should be replaced. Bolt tightness should be checked by rotating the blade about its length (blade pitch up and down). There should be no slop, and if there is, the bolt and nut should be tightened until the slope is removed. There should be no slop between the propeller hub and the motor.
Motors should spin freely, and there should be no grinding or scraping sound from the motor. The inside of the motor should be free of debris.
Always turn on the radio controller before powering ALTA Pro. Follow the battery installation guidance in the Battery Installation section of this manual for battery installation instructions.
While the Autopilot initializes, keep ALTA Pro as stable as possible. Wedging a foam prop protector between the stationary gimbal or landing gear and the frame can be used to stabilize ALTA Pro from spinning during this process.
At the end of this process, the status will begin slow flashing white, indicating ALTA Pro is ready for arming. The Orientation Lights will also begin flashing green. Verify that all motors are flashing green, indicating all ESCs initialized successfully.
Verify that there are no flight warnings by connecting to ALTA Pro via ALTA Pro QGroundControl and checking for warnings or errors. For more information, see the ALTA Pro QGroundControl section of this manual.
If battery cell voltage is below Alarm Voltage (all flight modes)
If battery cell voltage is below Land Voltage while flying in Manual Mode
If battery cell voltage is below Land Voltage while flying in Altitude or Position Mode
If the battery cell voltage drops below the Alarm Voltage, the Status Light will turn solid red in Manual Mode or flash red if in Altitude Hold or Position Hold. Terminate the flight and land as soon as possible.
If the battery cell voltage drops below the Land Voltage, the Status Light will flash red. The orientation lights will flash as described above. The pilot will remain in full control of the ALTA Pro in all three flight modes and full throttle authority is available to the pilot in a battery exhaustion event
Regaining spatial orientation as quickly as possible is most important. If the pilot loses orientation of ALTA Pro, control inputs will not give the expected result, so neutralize controls by centering the throttle/yaw and pitch/roll sticks to stabilize motion. If a good GPS signal is available, enable Position Mode so ALTA Pro will stay in one place.
Use yaw only to reorient ALTA Pro so the nose is pointed away, then use the roll control to verify the orientation of ALTA Pro.
Item
Action
1.
Payload
SECURED
2.
Isolator Cartridges
VERIFY SECURE
3.
Propellers
CHECK CONDITION, VERIFY TIGHT
4.
Propeller Hubs
VERIFY SECURE
5.
Motors
CHECK CONDITION
6.
Radio Controller
ON, VERIFY TX BATTERY
7.
Radio Controller Model
SELECT
8.
Aircraft Placement
AWAY from people and obstacles
9.
Battery Pack Voltage
VERIFY ABOVE 24V
10.
Battery Packs
SECURE
11.
Battery Leads
CHECK CONDITION and CONNECT
12.
Aircraft
KEEP STATIONARY
13.
Flight Controller
Allow to INITIALIZE
14.
Status Light
VERIFY SLOW FLASHING WHITE
15.
Orientation Lights
VERIFY FLASHING GREEN
16.
Receivers
VERIFY BOUND
17.
ALTA Pro QGroundControl
CONNECT
18.
ALTA Pro QGroundControl
VERIFY NO WARNINGS
19.
Compass Calibration
CALIBRATE as required
20.
Radio Control Range Check
AS REQUIRED
If ALTA Pro moves during initialization, it may not boot properly and will fail to start or not maintain heading.
1.
Status Light
ILLUMINATES RED (solid or blinking)
2.
ALTA Pro
LAND as soon as possible
1.
Status Light
FLASH RED
2.
ALTA Pro
LAND as soon as possible (Autoland is not initiated)
1.
Status Light
ILLUMINATES RED (solid or blinking)
2.
ALTA Pro
WARNING popup in ALTA Pro QGroundControl
3.
Pitch and Roll
MANEUVER away from people or objects
ALTA Pro will only Autoland if the battery exhaustion failsafe is set to RTL.
Item | Action |
1. | Control Inputs | NEUTRALIZE |
2. | Mode Switch | POSITION |
3. | Yaw | NOSE AWAY |
4. | Roll | VERIFY DIRECTION |
Position Mode may not function as expected if Position Lock has not been achieved. It is best practice to wait for Position Lock prior to takeoff, even if Position Mode is not planned to be used during the flight. |
ALTA Pro ships from the factory with motors precisely aligned to minimize the difference in motor speed between clockwise turning and counterclockwise turning motors while in flight. Opening the chassis by removing the screws that attach either the top or bottom chassis plates affects this alignment and may reduce ALTA Pro performance.
All user maintainable items are outside the chassis and do not require the removal of screws attaching the top or bottom chassis plates.
Bolts and screws this manual identifies as needing to be removed or replaced do not typically require threadlocking compound. This includes the screws holding on the handle, battery retention strap studs, battery stops, closeout panels, and the top male Toad In The Hole adapter. In addition, fasteners that attach to nuts with a nylon locking feature (nylock nuts) do not require threadlocker.
All structural fasteners require the use of threadlock. This includes chassis screws, lower male Toad In The Hole adapter, motor attachment fasteners, and the four M3 x 8 socket head bolts that attach the folding propeller to the motor. Typically, a low strength threadlocker (such as Loctite Purple 222) is used on structural fasteners.
The Freefly hex drivers included with ALTA Pro are designed to limit the torque that can be applied to each bolt or screw and help prevent stripping the fastener head.
Thread all fasteners into their respective holes until snug (when the fastener head bottoms out and lightly clamps the two mating parts together).
To prevent excessive tightening and damaging the fastener or parts, twist the driver from the smaller diameter knurled section of the tool between your thumb and index finger for small fasteners (under size M3) or with your thumb and two forefingers for larger fasteners (size M3 and larger).
Propeller blades should be removed when making a change to the configuration of ALTA Pro to prevent propeller strikes in the event of unintentional motor starts and should be replaced if they become damaged. Generally, a nick on the leading edge that is large enough to catch a fingernail indicates that the propeller should be replaced. If the blade composite structure becomes delaminated, the propeller should be replaced.
Freefly makes folding propeller assemblies available that include the blades and propeller hub fully assembled and factory balanced. They are available in clockwise and counterclockwise orientations.
The folding propellers are installed on the motors with four M3×8 socket head bolts.
Odd numbered booms (1, 3, 5 and 7) use clockwise rotating propellers when looking from the top down, and even numbered booms (2, 4, 6 and 8) use counterclockwise rotating propellers.
Under normal use, propeller bumpers (see exploded view figure on the next page) may split and fall out of the folding propeller assembly. Six spare bumpers are provided with the ALTA Pro. To replace the bumper, disassembly of the folding propeller is required.
Start by removing the M3 x 19 bolt and nylon nut. Pull off the upper prop adapter. The two bumpers are held in place by cylindrical features in the lower prop adapter. Replace the worn or split bumper.
To reassemble, follow the parts layout in the figure above. Note that there are two different types of washers, one made of nylon and the other made of PTFE. The nylon washer is smaller in width and thicker, and is installed between the nut or bolt head and the two prop adapters. The PTFE washer is wider and thinner and is installed between the prop blades and prop adapters.
ALTA Pro is designed to be as low-maintenance as possible.
It is recommended to check ALTA 8’s fasteners regularly. This check should occur roughly after every 15 flights, depending upon the level of vibration ALTA 8 experiences in flight or during handling. To check ALTA 8’s fasteners, apply a tightening torque to each fastener on the chassis using the supplied hex drivers. The fasteners should not slip.
If a fastener does slip, tighten it using the methods described in the Fastener Installation section. Do not apply additional thread locking compound unless the fastener has repeatedly come loose.
The following items should be checked after every 15 hours of flight.
Fastener Tightness
Check the tightness of the following fasteners:
Motor mount bolts
Prop hub bolts
Prop bolts
Top and bottom chassis bolts
Closeout panel bolts
FPV camera mounting plate bolts
Accessory mounting plate bolts
GPS/Compass mounting bolts
Inspect the following items. Replace if worn.
Propeller blades
Prop bumpers
Check hinge latching tightness by closing the hinge. There should be a firm closing force and click. Adjust the tension by using a 1.5mm hex wrench on the set screw located under the hinge latch.
Spare or replacement parts are available for sale separately at . Please refer to the store for a current listing of all available spare parts.
Only use propellers supplied by Freefly on ALTA Pro. Use of third-party propellers can cause motor instability, overheating, and failure. |
Always use a thread locking compound on the bolt threads that attach the propeller hub to the motor. |
Always check to ensure the correct propeller rotation direction and correct propeller prior to flight. Propellers that spin in the incorrect direction will cause ALTA Pro to be uncontrollable. |
Propeller blades are balanced and paired individually. Do not mix and match individual propeller blades when reassembling. Unbalanced propellers can affect flight performance. |
Do not open the ALTA Pro chassis. Opening the chassis affects factory alignment. |
Loss of Signal (LOS) can occur if the radio controller stops transmitting a signal, or if ALTA Pro is too far away to receive it. In the event ALTA Pro detects a LOS, it will automatically execute a Return-to-Land or Autoland as configured in ALTA Pro QGroundControl if using an S.Bus/S.Bus2 or DSM2/DSMX radio type. While ALTA Pro includes these emergency control modes, it is always recommended to attempt to regain signal link with ALTA Pro to keep the pilot in control of the aircraft.
Move the antenna orientation for best signal strength. Ensure the radio antenna matches the direction of the receiver antennas. Move the radio away from objects to get a clear line-of-sight to ALTA Pro.
Set the Mode switch to Position and the Home switch to Return-to-Land so ALTA Pro will continue to approach the home point if the signal is momentarily regained, resulting in higher likelihood of regaining full signal reception.
Item
Action
1.
Controller Battery
CHECK
2.
Controller Antenna
REPOSITION
3.
Mode Switch
POSITION
4.
Home Switch
Return-to-Land
If efforts to regain control signal are unsuccessful, ALTA Pro will begin either the Return-to-Land and Autoland sequence as configured in ALTA Pro QGroundControl. Refer to the Flight Controller Modes section of this manual for additional information regarding functionality available with specific radio types.
Extra precautions should be taken following an accident, including a crash, tip over, propeller strikes with solid bodies, or other abnormally stressing events. Contact Freefly Customer Support immediately after an accident for guidance as field inspections are no substitute for consultation and direct inspection and repair of damage by Freefly.
Freefly Customer Support can be reached at support@freeflysystems.com or by phone at +1 (425) 485-5500.
Typical inspection points after an accident may include, but not be limited to, the following to gauge the flight-worthiness of ALTA Pro prior to subsequent flights:
Propeller blade and hub damage
Propeller tip spacing
Motor alignment
Chassis plate damage
The Toad In The Hole spacer in the center of the ALTA Pro
Booms for damage or cracking
Position light covers
Landing gear
Closeout panels
Hinge frame alignment
Hinge tension-compression link and latch
ALTA Pro’s motors are aligned at the factory at an angle relative to the chassis. This slight angle improves aircraft yaw authority and reduces the possibility of clockwise and counterclockwise turning motors from spinning at different speeds during stable hover. However, this alignment can be lost when opening the ALTA Pro chassis or if a boom needs to be replaced.
If the motors need to be realigned, follow the realignment procedure, then verify realignment was successful using the Pixhawk Flight Review software.
To perform a realignment, Freefly recommends using a small, digital angle gauge with a flat surface so it can rest on the bottom of the motor mount (for example, the Wixey WR300 angle gauge).
Place ALTA Pro on a level surface.
Place a digital angle gauge on the chassis next to the boom facing outwards.
3. Zero the angle gauge. 4. Starting at motor 1, place the digital angle gauge on the flat surface of the motor mount with the gauge facing outwards.
4. If the gauge reads a value outside the range 2.5°±0.1°, loosen the motor mount clamping bolts. While placing slight inward pressure on the motor, rotate the motor until the angle gauge indicates 2.5°±0.1°. When viewed from the end of the boom:
a. Motors 1, 3, 5 and 7 should be rotated clockwise.
6. Apply threadlock as required (Loctite 222 recommended), and tighten the motor mount bolts to 0.8 N-m (7 in-lbs). Do not over-torque the bolts. 7. Repeat steps 2 through 6 for the additional motors. 8. After aligning motors, recheck motor mount alignment and clamping bolt tightness.
Complete Unpacking and Setup, Before Starting and Before Takeoff checklists.
Enter a hover for at least 10 seconds. Do not yaw during the hover.
Perform the ‘After Every Flight’ checklist.
Retrieve the microSD card from the GPS module and open it with a computer.
Open the ALTA Flight Data Viewer.
Drag and drop the latest .csv data log file of the test flight from the microSD card on to the ALTA Flight Data Viewer window.
Under the Data Seeker section, select Hover from the Seek Event drop down box.
In the Flight Statistics section, look at the Yaw CW Bias value. It should be within +/- 5%. It Yaw CW Bias is outside +/- 5%, recheck motor alignment.
When rotating the motor, do not pull outwards on it.
If the Pixhawk Flight Review is unavailable or cannot be used on your operating system, yaw bias can be found at the bottom of the .csv data log for that flight.
ALTA Pro is a precisely tuned flying machine with sensitive electronics and may become damaged or adversely affected by crashes, tip overs, propeller strikes with solid bodies, or other abnormally stressing events. Freefly recommends contacting Customer Support immediately for guidance in case of any of these events. Field inspections are no substitute for consultation and direct inspection and repair of damage by Freefly