If you are thinking of changing over to a 2.4Ghz system take a look at:
https://www.bananahobby.com/6-ch-mic...ystem-set.html
They have a couple inexpensive systems that work very well, several of the electric guys from the
Lafayette & Lake Charles, La. areas are using them in their aircraft with good success.
The Tactic system from Tower is also another good system.