Any FM receiver will work as long as it has the same frequency, eg 75MHz, 29MHz, 40MHz, etc. It also has to be a matching pair of crystals. If your XS3 is synthesized then you should use a JR crystal in your receiver of your choice. For receivers Hitec, Novak, Sanwa, Airtonic, etc. will work fine. Make sure its a single conversion receiver as well.