I am new to the site and the digital scanner world, I have recently purchased a RS pro-106 and I am using ARC 500 software. I have down loaded the sites and talkgroups and also conventional channels to the scanner. My problem is that I only hear the conventional channels no talk groups at all. The county and state I live in is using the APCO 25 system. I need some help, I have been at this for quite a few days and know it is probably something simple, maybe? I would apppreciate any help!!!!!!!