Adjusting Travel and Center on Radiolink AT10II

I. Principle

The Radiolink AT10II RC transmitter ensures that the maximum throw and neutral position of the sticks precisely match the flight controller's requirements through End Point and Subtrim adjustments. Properly setting the endpoint and neutral position ensures precise control of the aircraft and prevents channel signal deviation from affecting flight stability.

II. Equipment Preparation

Hardware
1) Flight Controller: Any of the following flight controllers are compatible with this tutorial: SpeedyBee F405 WING APP / SpeedyBee F405 WING MINI / CoreWing F405 WING V2.
2) Receiver: Radiolink R12DS / R9DS / R6DS receivers (compatible with AT10II).
3) RC Transmitter: Radiolink AT10II RC transmitter.
4) Computer: Used for ground control station configuration.
5) USB Data Cable: Used to connect to the flight controller.
Software
INAV ground control station

III. Specific Operations

1. Receiver and Flight Controller Wiring

2. Binding Operation

1. Enable Binding Mode:
   Turn off the RC transmitter. Press and hold the receiver's BIND button, then power on the receiver. Observe the receiver's LED flashing rapidly, indicating it has entered binding mode.
   
2. Perform Binding
   Turn on the AT10II RC transmitter, press and hold the MODE key to enter the menu. Select RX Bind, press the Push key to confirm. Wait for the receiver's LED to become constantly lit, indicating successful binding.
3. Confirm Successful Binding
   Connect the flight controller to INAV Configurator or Mission Planner, and check in the RECEIVER interface whether the channel data responds normally.
4. Check Remote Control Signal Input:
   Check in the ground control station's receiver channel monitor whether the channel data has normal feedback. If the data changes normally, it indicates successful communication between the receiver and flight controller.
   
   3. Adjust Channel Endpoints
   As shown in the example below: The throttle channel minimum value is 1006. If we want to adjust the endpoint to below 1000, follow these steps:
   
5. Press and hold the MODE key to enter settings, select Servo End Point, and press the Push key to confirm.
   
6. Use the sticks and direction keys to select and set the endpoint values for each channel, and observe whether the throttle maximum and minimum values change.
   
   
   4. Adjust Channel Neutral Position
   As shown in the example below: The neutral values for roll, pitch, and yaw are not at 1500. If you want to adjust them to 1500, follow these steps:
   
7. Press and hold the MODE key to enter settings, select Subtrim, and press the Push key to confirm.
   
8. Select Subtrim, press the Push key to confirm, then use the sticks and direction keys to select and set the neutral position for each channel. In INAV ground control station, check whether the neutral values for all channels are at 1500.
   
   

IV. Q&A

Q: After adjusting the RC transmitter's neutral position/endpoints, the values displayed on the RECEIVER page of INAV ground control station are fluctuating?
A: Generally, fluctuations within ±5 do not significantly affect flight. If this occurs, it's likely an issue with the RC transmitter. It is recommended to recalibrate the transmitter or replace it with a higher-precision transmitter or sticks.

Technical Support QR Code