I live in Newbern, TN which is in NW Tennessee. I the TVA police on 172.475 pl 114.8 with a strong signal but not quite a full quieting signal. I also hear them on 168.225 pl 123.0 simulcast in which that signal is not as strong. I'm using an old Uniden BC780xlt connected to a Tram dual-band VHF/UHF mobile ant. mounted about 30ft. using a base conversion kit with RG-6 coax. I hear dispatch "200" and also hear units checking in around the state. I've heard units in Gatlinburg, Chattanooga, locations in middle TN and in western KY. Are all these towers simulcast??? I also am using a GRE Psr-500 portable connected to a 5db gain ant. to hear various trunked systems around the area, and have a Radio Shack Pro-197 in the car. Hopefully with the help of everyone on the forum, we'll get some good info. on the TVA police and tower locations.