Ive got an issue with a PRO-106. I live near a cell site. Im hearing the control channel on the P25 state system in Kansas great. Decoding the control channel at 99%. One certain voice channel will not come thru. the scanner just stops on it but no audio will ever come thru. im sure the cell site is causing interference on that channel. ive tried turning on the att but it kills the entire control channel. any suggestions on what to do?