RE: Setting up Trainer on Futaba 7C
Hi,
Normally nothing should be activated on that transmitter to be working as a pupil-transmitter (slave).
The only thing to do is to asure you're in PPM-mode and NOT in PCM, for as far your TX is equipped with it.
To check if there's any outgoing signal from your transmitter, you could eventually connect signal and ground (if it's a jack-connector, it's very easy) to your soundcard, download a free PC-scope and use the scope as described in my website, chapter 1.
Olivier