Found another unknown active talkgroup on the
Valparaiso site, 10496. It's analog and sounds like it might be INDOT as they're talking about cars, which sounds just like they're in a construction zone directing traffic. Been hearing it all morning but no real way to tell where and who they are.
I'm also finding some of the frequencies listed don't quite match up that's listed to what Unitrunker is showing. For example, the listing for
Plymouth is showing two extra frequencies that's not appearing in Unitrunker, 852.2125 & 857.2125. On the
Summit site it shows 855.9875 (LCN 199) as the alternate but Unitrunker's showing 854.3125 (LCN 132), which is not even listed here on RR. 852.4250 is also listed as a voice channel, but does not appear in Unitrunker. According to FCC entry the frequencies are assigned to the site so it's possible they're just not being used and only appear when used.