RE: Engine Interference/Noise with Spektrum DX7???
I have never had a problem with any electric platform (heli and/or fixed wing), but I've pretty much given up using my DX7 with nitro models. I've had 3 models (one model survived 2 crashes, so really 5) go out of control for no apparent reason, all in mild flight regimes (ie level wings, no G's). All where ranged check and control checked before flight. Might be a coincidence or bad luck, but I don't believe it.
After the second one I sent the AR7000 back to Horizon, they said they updated the receiver software and it checked good. First flight with a new airframe (a meticulously built Seagull Extra 260 .9 ARF), same result (loss of signal/control). So I brought the entire wreckage back to my LHS to send back to horizon and tell me what is going on (and check all the components), I've yet to hear back from them. Continue to use it with my electrics with no problems.