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*** Special Notice Regarding LORAN Closure: *** In accordance with the 2010 DHS Appropriations Act, the U.S. Coast Guard terminated the transmission of all U.S. LORAN-C signals on 08 Feb 2010. 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.
LORAN C
Primary Mission Areas:
Maritime Information:
LORAN-C CHAIN CONFIGURATIONS


The following chain configuration information has been taken from the Specification of the Transmitted LORAN-C Signal, COMDTINST M16562.4A, 1994.

Select a chain below:

5930 - Canadian East Coast
5980 - Russian American
5990 - Canadian West Coast
7270 - Newfoundland East Coast
7960 - Gulf of Alaska
7980 - Southeast U.S.
8290 - North Central U.S.
8970 - Great Lakes
9610 - South Central U.S.
9940 - Western U.S.
9960 - Northeast U.S.
9990 - North Pacific

or choose a chain below and download the results to an Excel spreadsheet.

5930 - Canadian East Coast
5980 - Russian American
5990 - Canadian West Coast
7270 - Newfoundland East Coast
7960 - Gulf of Alaska
7980 - Southeast U.S.
8290 - North Central U.S.
8970 - Great Lakes
9610 - South Central U.S.
9940 - Western U.S.
9960 - Northeast U.S.
9990 - North Pacific