I purchased this product new in 2011. Worked basically flawless in Denver. Moved to Albuquerque 3 years ago. Finally took the time to reprogram the 500 for Albuquerque metro area. I Used ARC500 software. The CPU firmware when new was and is currently 2.1. Same with the DSP, version 1.4. However, I am not able to pick up any of the TGRP's in Albuquerque for police; only fire. Also, while listening on this radio on a few other groups, dispatch conversations are clear and crisp, but the cars who communicate with the dispatcher, are garbled and unintelligible. I'm starting to believe that there is a possibility that this radio doesn't support ProVoice systems and other decoding software that will enable me to listen to these specific groups. Any help would be much appreciated.