Automatic Identification System (AIS) for ships
VDL6000 CLASS A C.N.S. Systems AB vertreten durch ELNA

The data link communication covering identity, position, destination and other required static, voyage-related and dynamic data gives all vessels in an area increased situational awareness and improves safety at sea for the individual ship. Positive identification and positioning of all ships in the vicinity reduce the unnecessary ship on my port bow calls. Less information overload greatly enhances safety at sea.
Features
The SOTDMA technology used in the AIS transponder transmits and receives information on all vessels within VHF coverage. This information includes position, identity, course over ground, heading, and rate of turn as well as navigational status and the destination of the ship. The information received from, and provided to, the ships is easily plotted on any ARPA radar or electronic chart system. This gives the Officer of the Watch a situational awareness that could never be achieved prior to AIS. Information on draught, type of cargo and destination could also be used to make decisions related to manoeuvring. The screen presentation of the call signs of other ships enables a ship to make direct contact with conflicting vessels by text messaging or voice communication. Maximum awareness is always accomplished.