I have a strange thing happening everyonce and awhile, I would be testing my r/c system on my airplane, rudders, steering etc; then all of a sudden the transmitter says it transmitting, but no servos at all move, good batteries and all. I then shut everything down and restart, to find that nothing works, allmost like the transmitter is not sending a signal. I have checked everything I know. Even while this condition happpens, I get another rx out and hookup a servo and a battery to it, and nothing worked either. I don't understand why it goes into this conditon, almost like in "fail safe" mode. this has happened to me like 4 times now, but only on test bench aircraft. I am using the FP-TK-FSS module on the TX, I have bounced to PPM, then back to PCM, changed the frequency back and forth, only to find that it seems to come back on it's own. Please, I need to know if the module is causing the trouble or is there something else that can cause this? Anntena? This is a new radio system I got this spring. Thanks inadvance Paul