David Bentley 2

Reading the JR manuals on the PCM9xII and X-2720 am I to presume that the PCM9xII is using the 35Mhz band and needs pairs of crystals whereas the X-2720 uses the 2.4Ghz band and has synth frequency whilst the price of both these is somewhat expensive I suppose you only get what you pay for My idea was that by going towards the top end it would offer some future proofing as I have some other ideas about R/C for complex road/military models Or am I wrong David