Originally Posted by jsmax
I know the JR300 & JR310 Synth rx's work with the M8
You can interchange Airtonics, JR, and KO equipment as they are all positive but Futaba and Hitech are negative. I too have used an M8 Tx. with a JR RS310 Rx. I currently use a Helios Tx. with different JR Rx.s.