futaba radio and receivers
I have been using Futaba 2.4 for years, be aware there are 2 systems, FHSS and FASST, they are not compatible, except with some of the high end transmitters which work with both systems.
As to other type compatible receivers, i have Corona and Orange, a lot cheaper than Futaba, they do work, but, as Dodgy said, you might lose some range, look for the ones that are surface receivers, 'air' receivers depend on height for there range, also beware of park fly receivers, they are very limited range, park or indoor.
It all depends how many channels you need to use.
if you need more info give me a shout
Etherow Model Boat Club