I used to monitor those systems when I lived there in north Pinellas county - my house was on Scamp Dr, right there at the intersection of US19 and New York, west of 19 technically in Hudson. Pasco, Hernando, etc. That was a great area to be in when it came to scanning. Lots of action down there, milair, hf utility radio, maritime (I was one block from the Gulf) listened to a lot of Coast Guard traffic, oil rigs, boats. I miss that about Florida. Ah, the good ol' days...
JD
kf4anc