Receiver issues

[Clint307]

Yeah I know all about the crystals and frequency chips and that's not the problem the JR radio is on channel 34 matching crystal in the receiver the Futada radio is on channel 50 again matching crystal in the receiver! I went to 2.4 ghz because I fly extreme 3d aircraft and the frequency crystals were allowing too much interference and I lost 3 airplanes totaling 5400 dollars so yeah I know about crystals. The speed control unit linked with the Futaba with no problem but it will not link to the jail are! Any help?

[FlyingBeagle]

This is just a total guess, but is it possible that the sub trims on the channel are set too low. I have run into that before with an optical kill for an ignition for a gas airplane engine. It would not recognize the signal because even with the switch on, the signal strength was still below the threshold for activiating the kill switch.