Suburban, I think that some pictures would be of benifit but maybe I can add some things to think about. Back in '99 I had a D&B 5.1 twin that Ridge Machine was producing. I was amazed that the engine came with no plug caps at all. Not even rubber ones. What it did come with was silicon plug wires with simple clips ala Briggs and Stratton. So far in this thread there is no mention of plug caps or if you have a resistor plug. In my situation I was getting hit on all channels. I was making things even more difficult because I had set up the airplane with dual FM receivers. The fix was to call Dave Johnson at DA and ask if I could buy some plug caps and wires as at the time he had just released the DA 150. What he did was send me a fried 3W ignition free of charge. I pulled the wires off the Reichmuth ignition and installed the 3W wires and caps. I ran a ground wire fron the braided sheilding to the engine mount. This effevtively grovided grounding as the ignition was built into the mount. Worked like a charm. I don't know what you have but if there is not a metal plug cap could be same situation.


Ok why you are getting it on the ailerons only. RF is funny stuff and I have seen PHD's get stumped so all I can do is venture an educated guess. Usually when there is RF spillage it is in some kind of pattern. My guess is that the radiating pattern is focused outward but getting larger the further out it gets. Your aileron servo's/leads could be in the radiating pattern. Barracuda looks to be correct that in this case your RX does not seem to be affected but that may be because it's just not in the RF pathway. What I think is happening is your aileron leads are picking up on ignition RF your RX is not affected but the servos are. Twisting wires is as BH stated not a fix but it is a step towards prevention and worth doing. Wrapping the signal wire with the ground wire does provide some shielding but obviously not enough in your case. A fun experiment would be to wrap the leads in aluminum foil and connect the foil to the ground plane of the servo. Before we get too carried away, I am interested in what plug cap you have and if you have a resistor plug or not.