I have the spectra set-up. I always do a control check before flying the plane for the first time each day, you don't make mistakes that way. I use both Futaba and Hitec RX's. This radio has a pos. or neg shift option so I think about any RX will work if you do the shift procedure.
I hear the 2.4 module will work in it also......maybe someone can shed some light on the subject?