I bought this scanner brand new and it is amazing, except it will not let me hear the local fire depts., I still have a conventional Uniden hooked up so I can hear the fire. I recently reprogrammed this scanner with the computer download, and now the fire frequency will occasionally show it is picking up the conventional frequency, but there is never any sound. It simply just stops there when they are talking, but I hear nothing. Does anyone have any ideas as to what is going on? Although I've been around scanners my entire life, this new digital stuff is confusing me.