ORIGINAL: landeck

Gary, I think the problem may be that the tx is swamping the rx when they are too close together. This can happen with FM PPM systems. I have one plane where if the tx is too close (2-4 feet) the rudder starts jigging but by moving away it stops and does not occure in flight. The distance is also dependent on whether the antenna is extended. It is worse with the antenna extended.

Bruce