Kongsberg Seatex AIS 100 Instruction Manual page 13

Seatex AIS 100 Instruction Manual, rev. 5 General information
AIS information content
AIS type of information is exchanged automatically between vessels,
vessels and shore based stations and vessel and Aids to Navigation
like buoys and lighthouses. The information transmitted by the AIS
mobile stations is grouped in four categories:
Static Data
• MMSI (Maritime Mobile Service Identity) number
• Call sign and name
• IMO number
• Length and beam
• Type of ship
• Location of position fixing antennas on the ship
Voyage Related Data
• Ship's draught
• Hazardous cargo type
• Destination and ETA (at Master's discretion)
Dynamic Data
• Position with accuracy indication and integrity status
• Time in UTC
• COG (Course over ground)
• SOG (Speed over ground)
• Heading
• Navigational status
• Rate of turn
Safety-related Messages
• Reading and writing short safety related messages
Data reporting and transmission rates
AIS data as stated above is autonomously sent at different update rates
and thus reporting rates are dependent on the ship's navigational
mode. Dynamic information is dependent on speed and course
alteration while static and voyage related data are transmitted every 6
minutes or on request. Thus fast ferries will report their navigational
data at a higher update rate than ships at anchor.
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