LORAN-C CHAIN DATA NORTH PACIFIC CHAIN, GRI: 9990

Station Rate Function Emission Code Delay (uSec) Nominal ECD (uSec) Notes Peak Power (kW) Coordinates
 ST PAUL , PRIBILOF ISLAND, AK  9990  MASTER  NA  NA  0.0  (4)  400  57° 09' 12.350"N / 170° 15' 06.245"W
 ATTU, ATTU ISLAND, AK  9990  XRAY  14875.25  11000  0.0  (4), (5), Dual-rated to Russian American Chain (5980)  400  52° 49' 44.134"N / 173° 10' 49.528"E
 PORT CLARENCE, AK  9990 *  YANKEE  32068.95  29000  0.0  (6), Dual-rated to Gulf of Alaska Chain (7960) 1000 65° 14' 40.372"N / 166° 53' 11.996"W
 KODIAK, NARROW CAPE, AK  9990 *  ZULU  46590.45  43000  0.0  (6), Dual-rated to Gulf of Alaska Chain (7960) 400 57° 26' 20.30"N / 152° 22' 10.65"W

* indicates that this rate is not this station's primary rate

The notes below are referenced by number, where applicable, in the Primary Notes and Secondary Notes columns above.

1. Host nation manned.
2. GCF-W-756CG Two Pulse Communications installed ( Uses pulses 7 & 8 for backup control communications).
3. Unmanned receiver site.
4. Manned receiver site.
5. Priority blanking used.
6. Alternate blanking used.