I was scanning on my Yaesu/Vertex VX-150 and found a lot of activity on 161.1900. It is NYC subways, a desk named RCC. I am hearing activity from all around, so I guess this is the main channel? It is a repeater, so I get both sides of the communication.
If I want to listen to subways, what other freqs should I be listening to?
RCC stands for Rail Control Center. Each division has one.
161.900 is the "Command Center (or dispatcher) to train" frequency for the A division (IRT) - the numbered lines (except for the 7).
You'll find them all here:
http://www.panix.com/~clay/scanning/fre ... ycta.shtml
It isn't necessary for you to program in the Train to dispatcher frequencies as they are automatically picked up and repeated by the Dispatcher to train ones.
I don't know where you are but don't expect to get much activity on some of them. The further you are from the area of operation the weaker the signal will be. Sometimes on a cloudy day/night the signal will be stronger. Also conditions around you (buildings etc) will affect reception. You own't hear anything that is being transmitted underground (unless you are underground and then you would be limited to that lines transmissions).
I am in the NE Bronx (and I am 23 stories up with an unobstructed view)and all I generally get is the A division - and generally only what goes on in the Bronx. It is a rare occasion when I might hear a train at New Lots in Brooklyn. On some occasions I'll get the B1 (BMT) and B2 (IND). On rare occasions I can hear the Coney Island Yard.