Hi fellow nuts Just bought a JR RS70 rx I can,t get over the fact that you don,t need a xtal, been trying to find the basics on how this system works, but so far,no luck. As for 2.4, i have too many 35 meg stuff to warrent changing to that,& i would like to see how the dust settles first.Been flying since 1946,in the day,s of air cored coils & behive trimmers,(how things have changed) Happy & safe flying to all. Merton