Yesterday afternoon I heard an air unit which I'm not sure was Broward Papa and some ground units running around the north part of the county discussing the best channel to use and doing radio checks at different altitudes. I hate to break it to them, but all the channels are carried over the same repeaters and antennas. But they did mention a block of 4 encrypted and 3 clear channels.
I'm guessing the 4 encrypted ones are:
12128
12129
12146
12147
They were on 12136 when they said "switch over to 3", then they appeared on 10077.
Add 10075 to the list of clear channels that might be part of this group.
So if you're running Unitrunker you can see which units affiliated with those talkgroups and make some edumacated guesses about which channels are grouped together. They also mentioned working with D.E.A. FWIW. Knowing this will help the Broadcastify streamers lock out these talkgroups to stay within the terms of service.