Most of the ones around here talk after every train goes over. Here at work, I hear only a single CSX detector constantly. At home, I hear that detector, another CSX detector, and a couple of NS detectors. I kind of miss the NS detectors giving the axle counts. Every so often, the number would be shockingly beg.
I have a radio that's RR only, and when I hear an NS detector in Butler, IN on 160.800, that is my cue that the 2M band is open.
Most I've ever had was 724 axles.
172 cars and 6 motors (12,000 foot long manifest). What a pain in the rear