What causes servos to spasm? I have a receiver that causes my servos to spasm. I am using new batteries, 3 different servos, 2 different radios, different channels tried with the different radios, and 2 different trucks. The receiver is a futaba rp123f 75 mhz fm. I am using a 3pk and a associated XP3D with a futaba 75mhz module in it and it doesn't matter which radio I use the throttle spasm out so bad that I can't even run a truck.

Anything I can do about this receiver other than not use it?

Thanks, Uhgg