Didnt see a reciever on there, but regardless of reciever, make sure its crystaled for your transmitter. Your local hobby shop should be able to tell you which ones to get.

If your using a GWS reciever, they make the recievers in two types. One is for JR/Airtronics, and one is for Futaba...make ABSOLUTLY sure you get the one with the little "F" sticker on it. Again, your local hobby shop should be able to set this up for you. If not, go find another hobby shop.

Also it should be on same freq as the transmitter you plan to use. Dont re-crystal the transmitter. If you do it with a crystal too far out of range, it will reduce range on the transmitter upto 20%. Best just to leave that one alone. If you really want a new freq on the transmitter, you will need to take it to a shop to have them tune it for that freq. I would recommend Radio South if this is what you want to do, but in all reality, this is a unnecessary expense. Just get a 17 crystal for the reciever.