I know Jefferson County uses the big E but it doesn't seem like Hamblen County would because I see no reason for it but all I use it for is for when UTLIFESTAR and other agencies are called to fly patients out of MHHS (yes if you have seen a certain teenager at MHHS when LIFESTAR and a med unit are there you probably have seen me)
I can certainly appreciate your reasons for wanting to keep up with everyone. Jefferson County is on LandAir NXDN UHF system so totally different creature, but UT LifeStar is a TACN user and it is very common to hear them on P25. They operate in the clear and have some pretty cool comms on occasion. A lot of the pilots and navigators are prior service military and it shows by their radio etiquette. You’ll hear them almost daily in the Hamblen County area.
THP District 5 (Fall Branch) and District 1 (Knox) are both on TACN and in the clear for the greatest majority of their communications. They actually aren’t as exciting as you might imagine unless they end up in a wide area pursuit on the interstate.
BCD325P2 will work with TACN but I don’t think it can cover more modes like DMR and NXDN. It will of course work with all the P25 stuff on Phase I and II. It has more of the classic orange screen and buttons. If you’re more of a traditional look and feel kind of guy that might be the ideal scanner for the money. Just shop around and look on the for sale ads on here too might be worth your while.
If any of these new scanners last as long as your old one you’ll be doing very well.