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Fisheries and Oceans - Government of Canada
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Aids to Navigation

Important Notices

Canada's Buoyage System

Differential Global Positioning System (DGPS)

AToN 21

Related Acts and Regulations

Publications

Links of Interest


Graphic: notices to mariners icon


Project Logo: Aids to Navigation of the 21st Century
Aids to Navigation of
the 21st Century
(AToN 21)


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Canadian Coast Guard

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GPS receiver - manually-entered position offsets may cause safety hazard

March 2, 2005

Certain Global Positioning System (GPS) receivers do not provide a proper indication to other connected equipment when manually-entered position offsets are entered into the GPS receiver. Even a small offset could result in danger of Collision or other navigation safety hazard when the receiver is interconnected to devices such as Automatic Identification Systems (AIS), Electronic Chart Display and Information Systems (ECDIS), Integrated Navigation Systems (INS) or Track Control Systems (TCS).

GPS Receivers identified as having this problem:

For further information on this matter please refer to the U.S. Coast Guard Web Site at http://rtcm.info/044-2005-GEN-DIST.pdf

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Updated: 2007-11-07

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Important Notices

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