Pretty easy.
If they aren’t using RAS, I believe someone mentioned they aren’t, you could program up a radio/or scanner for receive only, with all the information if its listed(CC, TG). In the case of north jersey, for Kinnelon, Bloomingdale(picked Day school), and Kinnelon(I picked Denise drive-good signal), amongst a few others, that do have RAS enabled, I simply program in the frequency and CC, and it works. However, the only downside to that is if you have users sharing that frequency on TS 1/2, and the same CC, you’ll hear all the traffic. I haven’t had a problem with my monitoring on my 996p2.