I'm monitoring to 6 Nations on a grass fire and they are telling units to use Tac 1 (Tac 2 is not working properly). I don't see any Tac channels listed in RR.
I tried searching of course, but I'm not close enough to pick them up. You may have to be on top of them before you can pick them up. I also tried the TAFL search, but nothing received on that frequency (again distance).