EVO 12 - Servo Jitters
 

I have an EVO 12 transmitter that I am attempting to set up on a pattern plane with retracts. The receiver is Futaba, and the transmitter is in Mode 2. I the set ACRO template, and then added the retracts to switch J. I also set the throttle cut switch on the Kta switch on the top of the control stick, and set the aileron D/R on the Ksw switch.

Everything seems to work fine with the retracts down. When I put the retracts up, I get a problem. The servos jitter violently when I do any of the following:

rudder stick left
aileron stick left
elevator stick up
throttle down

Any ideas about what is wrong? Any help would be greatly appreciated. I could not fly the plane with this transmitter, if this problem is not corrected.

Lem

RE: EVO 12 - Servo Jitters
 

More info: I was wrong about the receiver, it is a Hitec RCD 3500 8 Ch Supreme. I switched the receiver to a Multiplex 9 ch IPD receiver, and the problem goes away.