Question about JR XS3

[DAVEC-NITRO-RS4]

So what receivers would work? 27 mhz, 75 mhz, am, fm?

I was just at Futaba.com looking at this and they say clearly that you cannot mix AM and FM rx & tx. Check their site becuase they have a nice ref chart for freq's and channels. They also have a simple explanation of why there is 27, 50, 72, and 75 mhz out there. They also have a great answer to range of AM vs FM vs PCM. AND they explain the radio based failsafe system (like Spektrum uses, they use it in their PCM). A good info source site, even if you don't use or like Futaba.