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Great Barrier Reef and Torres Strait

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Navigation Safety

• Differential Global Positioning System
• DGPS Fact Sheet
• How to use DGPS
• Accuracy
• Coverage Map
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• General Information
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• Positions and horizontal datums on paper and electronic charts
• Automatic Identification System
• Notices

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OHS Inspectorate

Port State Control

Flag State Administration

Coastal Pilotage

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Differential Global Positioning System (DGPS) Service

Welcome to AMSA's DGPS Service.

This site has been designed to provide you with up-to-date information on the status of the DGPS Service, along with other important and general information.