Ivan

There are two things that can cause this.

1. Transmitter to close to the ECU.
2. Servo’s in a bind. Digital worse.

Not all see this so installation counts.

My fix took care of the two things I wanted.

I wanted to be able to reboot my ECU without rebooting the receiver or work on the jet with ECU off.

I installed a switch and a small Rx battery for the ECU.


Small Rx battery + to the ECU. Switched.

Signal wire from ECU to receiver.

All grounds together.


I made a harness with a switch build in.


Let me know if I could help more

Johnny

disclaimer:
I do R&D electronic work for the DOD –FAA so I thrust my work.

What I am trying to say is do good solder work.