Kat, I've crashed a couple also. I have sent two receivers into Futaba for checkout and repair if needed. Both had a Ceramic Filter that was cracked. One had a non-futaba crystal which they stated was also bad. One had been under the tent of the fuselage for about four months through our rainy season and the other was a hit so that the engine was in pieces.

I also ask Futaba about checking out an older receiver that wasn't worth the cost of a repair, and got the following advise. Range check with the engine running and go out about 200 ft. A point I picked up from one of the ham radio guys at the field was to go out between 100 1nd 150 ft and then set the transmitter on the ground and watch for glitches. As long as your plane and batteries will pass this test, they should be OK. Error on the side of caution though. The repair shops are getting into the busy season now, so turn around time may be an issue.

Don