We have everything up and running in our fixed wing trainer but only get 40 feet away during the collapsed antenna range test before the servos go nuts. If Ardupilot is taken out of the loop, Range is over 100 ft, the plane flies fine and the Co Pilot works.I removed all avionics from the plane and set them up on a test bed for diagnostics. Here's what we've tried----1-Running Ardupilot off separate battery2-Grounded shielding of Ardupilot and input cables3-Opto isolation of Rx from Ardupilot4-Reorienting componentsI'm using a Futaba 72MHz PPM Rx and no matter what methods we've tried, the range is still cut in half. Anyone else have these issues or are my avionics possessed!?