ORIGINAL: DualdudE
I can just exchange the x-tal for a diffrent channel. As long as it stays in the same 'band'. I now have 40MHz channel 58, but if i want 59. I just buy a new pair of x-tals and it's done. You're not allowed to do so?
Hill202, with your JR, you don't have to worry about "High Band" or "Low Band", only Futaba breaks up the frequency range that way.
Dualdude, in the Netherlands, I gather you can buy crystals and just plug them in. Here in the US, we're regulated a bit more. We have to replace the whole module - and for some transmitters, that's the whole transmitter. Oddly enough, though, there are a couple manufacturers who offer frequency synthesizers which can adjust to any of our permitted frequencies. Odd, eh?
Good luck,
Dave Olson