RE: trainer box questions
You could try using the puter radio as the slave. I had a puter radio as a buddy box once. The basic 4 channel powered up the slave puter radio even though the swich on the puter radio was off. The downside is powering up the puter radio put a higher drain on the Tx. battery whcih you could see the power levels dropping off much quicker. My setup was also Futaba. [8D]