I'm having trouble with Shelby County frequencies. I have a Radio Shack Pro-2052 dual trunking scanner that I used several years ago to listen to the local police radio traffic. Now I've pulled the scanner from the garage to listen to it again, but I get nothing. The scanner works but I don't know if they went to a trunking system or what. The only frequency I can find online for shelbyville police is 154.785. Can anyone help me with this? Thanks.