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The Automatic Identification System (AIS) is a maritime transponder
system defined by the IMO (http://www.imo.org).
AIS operates in the VHF frequency band. AIS main objectives are:
- to improve maritime safety
- to protect the maritime environment
Practically the AIS:
- assists collision avoidance (AIS ship-to-ship),
- enables ports and coastal states to identify ships and to manages
and supervise the traffic in their waters (AIS Coast station).
AIS equipment can be connected to a Vessel Traffic system (VTS).
It allows Automatic Data exchange between ships (vessel) and
between ships and shore stations.
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