Originally Posted by Rastislavko
Some digital servos works pretty bad with RVOSD. I met the same problem with INO-LAB HG-D202MG - they jittered as hell. I analyzed the problem on scope and I found that RVOSD output on PPM line is 5Vp-p, but those servos needs lower voltage, they works well on 3.8Vp-p.
This may be also the problem of your ESC - try to connect good and working servo instead of ESC and try what it will do when moving the throttle stick all the way. This is how you can easily find out if the problem is in RVOSD or in your ESC...
thanks man, will try that. my esc is a HW pentium 40a, also tryed a red brick 60a. same deal.
the servo jitter for the ailerons was like crazy when the y-lead was connected.