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*** Special Notice Regarding LORAN Closure: *** In accordance with the DHS Appropriations Act, the U.S. Coast Guard will terminate the transmission of all U.S. LORAN-C signals effective 2000Z 08 Feb 2010. At that time, the U.S. LORAN-C signal will be unusable and permanently discontinued. This termination does not affect U.S. participation in the Russian American or Canadian LORAN-C chains. U.S. participation in these chains will continue temporarily in accordance with international agreements. You may read more and download pertinent documents via our LORAN-C page.
Differential GPS (DGPS)
Primary Mission Areas:
Maritime Information:
DGPS & NDGPS STATUS INFORMATION

DGPS Site Status

The following selections will provide realtime operational status and operating specifications for all Differential GPS sites maintained by the U.S. Coast Guard.

You may view the DGPS configuration in the following ways:


NDGPS Site Status

The following selections will provide the current status of the Nationwide DGPS expansion initiative: