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→Ship tracking: + IMO requires ships over 300 w:gross tonnage to install an AIS w:transponder on board. The transponder transmits vessel position, SOG and COG (speed and course over ground), ship name, ship size and next port of call
(+ changed heading to + == Ship tracking == + added AIS Data Exchange at AISHub.net - AIS data sharing and vessel tracking by AISHub) |
(→Ship tracking: + IMO requires ships over 300 w:gross tonnage to install an AIS w:transponder on board. The transponder transmits vessel position, SOG and COG (speed and course over ground), ship name, ship size and next port of call) |
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== Ship tracking == | == Ship tracking == | ||
Various ship-tracking services exist that get their data feed from '''[[w:Automatic identification system]]s'''. AIS tracking become mandatory on all ships since 2004 | Various ship-tracking services exist that get their data feed from '''[[w:Automatic identification system]]s'''. AIS tracking become mandatory on all ships since 2004 <ref>http://www.vesseltracking.net/article/free-ais-ship-tracking-web-sites</ref> as [[w:International Maritime Organization|IMO]] requires ships over 300 [[w:gross tonnage]] to install an AIS [[w:transponder]] on board. The transponder transmits vessel position, SOG and COG (speed and [[w:Course (navigation)|course]] [[w:Ground speed|over ground]]), ship name, ship size and next [[w:Port#Port_of_call|port of call]].<ref>http://www.marinetraffic.org/marine-traffic</ref> | ||
AIS uses '''[[w:Maritime Mobile Service Identity]]''' codegroups for ship ID | AIS uses '''[[w:Maritime Mobile Service Identity]]''' codegroups for ship ID | ||