I've been listening to ADAM 5326 miking stops north of Ely today. He was chasing down a car doing 101 by Schellbourne, when I realized I don't know what significance a 5000 series call sign has. 6000s are regular troopers, 7000s are the commercial guys; there are normally a few 4000 sergeants on duty, but I have no clue what a 5000 is.
anybody know?
anybody know?