BlackSheepDue
Member
It was my understanding that when Troop E got incorporated into the Northern Field Troop that all the 500 units became 300 units. I haven't heard any 500 units since then but in the last week or so I've heard 502 on zone 2A twice. Any idea if the 500 series callsigns have been repurposed? I know the 900 series has been repurposed from Troop J to the TAC team so I wouldn't be surprised if they are doing something similar with the 500's.
