Evenin' Mike, I like and agree with your basic attitude👍 BUT-
How's your electronics!?
Whereas it MAY be possible to obtain a 2.4Gig TX module for the Mac (but I doubt it cos it's probably too old) there's no way you can mod the RX to match. And which hopping system
would you use? FAST, HOTT, AFHDS ...?
Assuming you can find an appropriate TX module you'd have to replace the RX anyway. Your best bet might be to look for a 40MHz TX module, there were a number about before the 2.4 craze started! You'd still have to replace the RX though, unless your electronics is up to a rebuild
and retune! And make sure you have a match; AM, FM, PCM, PWM ??
The UHF (459MHz) sets never really got off the ground(!😲) so modules for those are probably as rare as rocking horse droppings!
Look for 40Meg bits.
Bon chance mon ami,👍 Cheers, Doug 😎