THE DEVICE I'M TRYING TO UTILIZE IS AN EAGLE TREE SYSTEMS2/D3/D GUARDIAN STABILIZER. THIS HAS BEEN SET UP PROPERLY. I HAVE ALSO TRIED A SPARE SERVO IN CHANNEL 5 AND THE SWITCH DOES NOT OPERATE IT. I COULD POSSIBLY BE DOING SOMETHING WRONG IN THE PROGRAMMING OF THE TX, BUT HAVE TRIED EVERYTHING IN THE MANUAL TO NO AVAIL. THX FOR THE REPLY.