Weeds,
Thanks for the PM. A full list of US Marine VHF channels is here:
http://www.navcen.uscg.gov/marcomms/vhf.htmUsually, a scanner will either come with simply channel numbers eg 01 and you have to manually input the frequency you want stored on it. For example Channel 1 could be used as Marine Channel 16 - 156.800. Modulation is FM.
Some scanners will show the frequency readout. eg. Mine is 'banked' with mil airband, civ airband and marine VHF. I have VHF Channel 16 Marine on my channel 40 though the readout shows 156.800 FMN (FM Narrow). I also have a dual watch so that, if I program it, it will pick up two channels by scanning both. I make one usually Channel 16 and the other our primary lifeboatr working channel (also HM Coastguard) which is Channel Zero (156.000). I can also make a priority frequency the 'select' one so that if it is scanning, then the priority will come in every two seconds, but lock when it gets a signal.
If you want to say what scanner you have I may be able to help further.
The UK does not allow re-broadcast of marine VHF but I have got links for the Dutch system, which also uses AIS so you can hear and 'see' the ships on an auto- refresh map. It is situated here:
http://www.scannernet.nl/AIS%20Google%20Online%20DSC.htmland here:
http://members.home.nl/krid/livescanner.htmlThere is an AIS map of the US at:
http://ais3.siitech.net/VTSLite/AView.aspx but I don't think it has VHF - but you could use a map which shows ships movements (known as AIS) and listen to your scanner at the same time?
Jonty