160.455 (CTCSS 146.2 & CSQ) - simplex yard operations at Rensselaer; on Sunday activity was moving locomotives to changeout the motor power on The Adirondack train.
160.635 (CSQ) - a brief bit of activity; unable to clearly copy the audio. One thing for sure; units were using MDC signalling and I also heard DTMF at one point.
160.800 (CSQ) - road channel operations at Rensselaer; also train to station / crews to station
160.815R / 161.505I (146.2) - station operations; also announcements when trains are approaching the station (about 5-10 minutes out)
These channels are also licensed to either the station, the maintenance shop/yard or mobile use...
160.515 - repeater (Dunbar Hollow radio site)
161.130 - base (passenger station)
161.145 - base & mobile (maintenance facility)
161.265 - base/mobile/control station (passenger station)
161.295 - base/mobile & repeater (maintenance facility)
161.430 - mobile
161.535 - base & mobile (maintenance facility)
173.325 - base/mobile & repeater (passenger station)
173.375 - mobile
Some online research shows 161.295 as Amtrak Police.
Kevin