I hope this thread is in the correct forum but if it isn't, my apologies to start. I have a Radio Shack PRO-197 that I recently update the software in to the 2.1 version. I updated all of the new frequencies for the county I listen to but I hear no audio. The scanner will stop on the channel when there is a transmission but no voice. I am listen to the Upper Maryland Eastern Shore Consortium for Queen Annes, Talbot and Caroline Counties. I am using the MOT 800/900 setting. When I hear a transmission on a conventional channel, I can hear everything just fine. Any help would be appreciated.