Posted in two other locations.........

The synth module from Hitec works in the Futaba radios that have modules, 7C, 8C, 9C...

I use small synth receivers from Hobby city and absolutely love them... full range, small, never a glitch...

4 channel-
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=5781&Product_Name=Corona _Synthesized_Receiver_4Ch_72Mhz_(v2)

6 channel-
http://www.hobbycity.com/hobbycity/store/uh_viewItem.asp?idProduct=6599&Product_Name=Corona _Synthesized_Receiver_6Ch_72Mhz___(v2)

8 channel-
http://www.hobbycity.com/hobbycity/s...iver_8Ch_72Mhz