You need the "Q" or "S" model for programming an UHF freq such as a GMRS 452/467 MHz freq pair. If you have the "U" model, the operating band range is 700/800 MHz and the "W" model is the 900 MHz band. The "K" model is the VHF Highband operating band. Also, in your shopping endeavors, be cozigent of the Flashcode for the radio you're looking at for the features you need in the radio, i.e. Astro Digital Q806, Q241 Analog operation only, etc. The flashcode features dictate how your radio is going to function.