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Outage information is shown below each site. It is requested that users notify the Navigation Information Services Watchstander at (703) 313-5900 or via email regarding any observed outages, problems, or requests.

The U.S. Coast Guard DGPS service is available for positioning and navigation; however, users may experience service interruptions without notice. U.S. Coast Guard DGPS broadcasts should not be used under any circumstances where a sudden system failure or inaccuracy might constitute a safety hazard.
Differential corrections are based on the NAD 83 position of the reference station (REFSTA) antenna. Positions obtained using DGPS should be referenced to NAD 83 coordinate system only. All sites are broadcasting RTCM Type 9-3 correction messages.


CURRENT DGPS ADVISORIES FOR 06 JAN 2009
SITE NAMESITE IDBNM #OUTAGE MESSAGE
SCHEDULED / UNSCHEDULED OUTAGES
Appleton, WA8711228-08OFF-AIR as of 1752Z 18 Dec 2008 UNTIL FURTHER NOTICE
Cape Hinchinbrook, AK8941033-08UNUSABLE as of 2015Z 20 Nov 2008 UNTIL FURTHER NOTICE
Essex, CA875010-09UNUSABLE as of 1700Z 08 Jan 2009 to 2300Z 08 Jan 2009
Millers Ferry, AL865006-09OFF-AIR as of 1500Z 07 Jan 2009 to 0300Z 08 Jan 2009
Point Loma, CA8811223-08OFF-AIR as of 1924Z 17 Dec 2008 UNTIL FURTHER NOTICE
Robinson Point, WA887009-09UNUSABLE as of 0602Z 05 Jan 2009 UNTIL FURTHER NOTICE
Sturgeon Bay, WI832008-09UNUSABLE as of 1704Z 04 Jan 2009 UNTIL FURTHER NOTICE
Vicksburg, MS860015-09OPERATING AT REDUCED POWER as of 1834Z 06 Jan 2009 UNTIL FURTHER NOTICE
GENERAL INFORMATION
No additional information at this time.
 
U.S. Coast Guard Navigation Center 7323 Telegraph Road, Alexandria, VA 22315 | (703) 313-5900 | Download Free Adobe Reader: Adobe Acrobat Reader