Futaba r603fs vs r603ff
 

Whats difference.
Quite a gap in cost and i need new receivers

I think in practical terms not a lot. The R603FS came with the more expensive radios, I think it should have better reception with an extra internal antenna, it also had gold coloured connector pins. I used them interchangeably and didn't have any issues with the R603FF.

thanks, much appreciated, I was worried about compatability

Tony