My local police dept. just recently moved from analog to DMR and sometimes when a user talks like the dispatcher I sometimes get unknown type error and and voice rate 1/2 something of those natures and I hear no audio. But its not the problem with their radios because I can hear the officers respond back to the dispatchers but I never heard the dispatcher. I have raw audio of the dispatcher talking but dsd+ not being able to decode it. The signal is very strong so its not a signal problem.