Oh yes. I ride the Raritan line at least twice a week. I know that up until Union Train Station the Raritan Dispatcher and the auto-signals are on 160.860 (shared with Conrail, since they are using their tracks). After Union, on the Newark Penn Station approach, they use Amtrak's tracks and therefore the dispatcher switches to 161.010. Every now and then I close-call a signal on 160.890 while riding on the Raritan train (which may just be an input to one of the other frequencies already mentioned, OR a spare channel). I hope this helps! Also, if you want to hear the transit PD in the Newark Penn Station area, they mainly use 161.370.