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The antenna appears to be fine on both items. I have the truck completely disassembled, and have traced the wire to where it's soldered on the board. All of the connections appear good.

It's frequency is 49 MHZ. I don't know at the moment if it's AM or FM, I'll have to look at the controller when I get home. I have several multimeters and a scope. The problem symptom is that there is no response from the truck when the controller's controls are actuated. The batteries are fresh in ...

I just bought a used All Bright Hummer RC model for my daughter, and it quit working after one day. I need to get a good book on troubleshooting RC models, so that I can diagnose and repair it. I've done some online searches, but haven't found anything useful.