Ships Map - Vessel Tracking AIS Positions Map | AIS Marine Traffic I am not sure where this may belong.
I use these Radio Signals every day... They tell me what vessels are in the area, Speed, Course, Destnation, CallSign, MSSI Number, Cargo Type, vessel Name, & Home Port....
Yea, VHF only goes about 100 miles from the Coast, and the AIS Receivers that feed the Reporting System, are usually Shore Based...