The Differential Global Positioning System (DGPS)

What is DGPS?

Differential Global Positioning System (DGPS) provides differential corrections to a Global Positioning System (GPS) receiver in order to improve accuracy.
DGPS corrections originate from a reference station at a known location.

The receivers in these reference stations can estimate errors in the GPS because they have an accurate knowledge of their own position.

The most common form of DGPS (used internationally for maritime navigation) operates in the MF Radiobeacon band (285-325 kHz).

AMNAS owned and Operated Three DGPS Stations.


  • Ra’s Al Hadd DGPS
  • Ra’s Madrakah DGPS
  • Marbat DGPS

Royal Decree No. 81 / 2003

Approving the Aids to Navigation franchise agreement between the Omani Government and Arabian Maritime & Navigation Aids Services LLC (AMNAS).

AtoN Failure Report

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Sultanate of Oman.
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