I've had this thing kicking around for years. Picked it up from a towing company, but never done anything with it. Make: R F Gain Model: RF 25100 U FCC ID: CQV8K4RF25100U >From what I recall looking up about it, it's built for 450-475mhz and was originally designed for FM use. Is it any use to anyone here? 73, -detrick K4IZ