In article .com,
"~^ beancounter ~^" wrote:

Lennn...when you say "broadcasting",
what freq or wave are they brodcasting on...
the "water/marine vhf channels", say 16 or 13 or
whatever ?... thanx....


"broadcasting commercial
vessels over 300 tonnes"


AIS works on an Unsed VHF Marine Duplex Receive Channel, that I can't
remember at the moment, in simplex mode. It is a Transponder type
service, that transmits a pile of operational data about the ship,
and receives all the data from other ships within VHF Range (Approx.
90 Miles on the High Seas) There are a lot of monitor receivers
setup on Internet, that cover many of the major shipping routes
worldwide, that can be displayed in real time.


Me