I unplugged all of the servos except the thottle servo and it still goes nuts. I then unplugged the throttle servo and plugged in one elevator for a reference and it still went nuts. I am using an optic isolator on the ignition and no components are within 12 inches of the radio. I also tried 2 recievers to no avail. Could it be the ignition itself. Is there anyway to test it? Rusty