Anybody have any insight on the notification "communication channel error" on their AGRAS platforms? When getting this warning we sometimes see our flight modes switch to atti mode, and transmitter reports operation complete. Other times the aircraft has flown the route, however, no product was dispensing from spreader. Looking at flight logs on airdata the notification thats listed is a compass error.
After we calibrate the compass and IMU again, we typically don't have this problem the rest of the day. Curious if anyone else has had this expierence or have an idea on what the problem may be? Thanks!

Hello, there. Sorry for the late response. Would you please try the method below?
1) Remove the MG-1S external barometer. Specific steps are as follows:
(1) Remove the MG-1S upper shell.
(2) Remove the external barometer connected to the GPS canhub.
(3) Directly connect the center frame on the external barometer canhub to the GPS canhub.

The link process is as follows:

A3_CAN 1 - GPS - Center frame - Radar 1 - Radar 2 - Radar 3.

2) Please avoid magnetic field interference.

3) Please check whether the compass cable is damaged.

4) Please clean the GPS antenna of foreign matter on the upper surface of the GPS module, as shown below.

5) Please change the GPS module.

If the issue persists, please send it back for repair.