ORIGINAL: nikkoli67
I just bought a JR XP783 transmitter and I have a reciever but I just want to know if I need a matching crystal in the reciever or if I can fiddle with it a little bit to make them work without having to buy a whole new reciever.
You need a crystal on the same channel as your transmitter. With that, it'll work. Without it, it won't. You can change the crystal in your receiver.