Automatic Identification System (AIS)

From International Dictionary of Marine Aids to Navigation
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urn:mrn:iala:dic:9-1-0006

Automatic Identification System (AIS) is an autonomous and continuous broadcast system, operating in the VHF maritime mobile band. It exchanges information such as vessel identification, position, course, speed, etc., between participating vessels and shore stations.

(Originate: G1050)