453.375 PL is 136.5
The only voice on there is the daily test with the Zones around 11am,and some weather warnings once in a while.
For all the other stuff they use the county trunked system talkgroup 28048,which has been pretty dead since a lot of them retired to get the big pension money years ago.
Now it seems like nobody even wants to leave the office,and seemed in a rush to leave the training exercise they had at the airport about a month or 2 ago.
It was nice back then,actually heard them on the radio sometimes while mobile when Severe weather was entering county or already here,and some actually went to hazmat scenes.
Sounded like 1 or 2 guys always had a portable with them.