On my isobar went out to do a range check and here's the info I got and am confused.

Using PCM 10 channel the older style 955 dual conversion

with antenae off the 10x radio could only get about 15 feet from the airplane before failsafe engine on or off.

with regular 9 channel fm receiver could get about 60 feet antenae off.

The FM failed the "50 paces" test, but did pass 45 paces.

I moved the antenae on each receiver in every direction imagineable.

This is with a Merlin "FADEC" ecu. The throttle cable from teh ECU does have that ferrite coil thingy.

The pump is mounted about 12 inches from the receiver, the ecu is same distance away. The pump and ecu are mounted two inches apart, but I'm not sure the ECU has anything to do with it as with the turbine off (but not unplugged, didn't think to try that) still failed.

Some thoughts? I can take a picture of the install tonight if it will help.

Sean

PS, Wocket, I already know your suggestion, but I just bought a second 10x so don't see more than 10 channels in the near future