DGPS Site Coverage

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Nationwide Differential GPS (NDGPS)

Nationwide DGPS
NDGPS Site Info & Operating Specs
Current NDGPS Site Outages
Report an NDGPS Problem
Canadian DGPS Status Info
Reference Information
NDGPS Ops Assessment Reports

Maritime Safety Data

Broadcast Notice to Mariners
Daily LNM Discrep & Temp CH File
Daily LNM File Description
N. American Iceberg KML File
DGPS Site Configurations
Weekly Light Lists (XML and PDF)

Mission Areas

AIS - Are You In Compliance?
AIS Data Request
Global Positioning System (Civil Support)
AIS - Types, Messages, Etc.
CGSIC Information
Long Range Identification and Tracking
Nationwide DGPS
LORAN C (archive)

Maritime Safety Information

Local Notices to Mariners
Light List Volumes (2020)
Navigation Rules - Amalgamated
Maritime Telecommunications
PAWSA
International Ice Patrol (IIP)
Public Notices for Bridges
Nav Pubs and Documents
Vessel Traffic Services
USCG Homeport Website
Coast Guard Safety Alerts (uscg.mil)

Subscribe / Report (free)

Subscription Services / RSS (free)
Report an ATON Discrepancy
Report a GPS Problem
Report an NDGPS Problem
Report an LRIT Problem
Report an AIS Problem
Contact Our Watch or SME

DGPS SITE COVERAGE

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U.S. Coast Guard Navigation Center - 7323 Telegraph Rd Stop 7310, Alexandria, VA 20598-7310 | (703) 313-5900 | Privacy Policy | Last Updated 01/12/2016

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