I just got my new radio/transmitter, a Futaba 3PM 2.4 FASST system, and I'm having a problem with it. I hooked everything up, but nothing works. It's like I'm not receiving, or transmitting.

I've got a green light on the TX, and a green light on the RX, but nothing moves. Everything is plugged in, where it's supposed to be. What did I do wrong?