The LEERN SYSTEM uses repeater set on (462.575) CH 16 with multiple repeater sites. Every time a LEERN MEMBER keys up, the only identification is, membership number/unit. That's not exactly going by FCC's R's&R's in Part 95 E. I don't I ever heard anyone give their FCC assing Call Sign. To answer your question, from I hear they don't use for any Law Enforce activity, just chit-chat as anyone would do. The one member 820,to me he comes accross as being arrogant. I really wonder if his Law Enforcement Career was a short one, because he sure thinks above everyone that isn't in Law Enforcement.