I'm getting these sites as TuWay, Con+? It's St. Lukes Ambulance and Suburban EMS. I also have them on an Industrial Communications, Salisbury site. Site 181-1 is Allentown, Site 181-2 is PenArgyl.
462.7375 is CC, LCN 1, 464.8500 is LCN 2. Those are the only LCN's I'm able to catch on 181-2.
451.8875 is LCN 2, 451.9875 is LCN 3, and 453.0125 is CC, LCN 1. Again, these are the only LCN's I catch on 181-1.
I'm in the process of trying to split up the TuWay and Industrial Comm. frequencies by location in the hopes of getting a better grasp on the systems.
There are other users on these systems, but I don't know who they are as of yet.
I haven't used a Whistler unit either. But, the 436 and 536 work very well.