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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.
Differential GPS (DGPS)
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DGPS REPORT-A-PROBLEM WORKSHEET

The Navigation Center appreciates your reports regarding service degradations, outages, or other incidents or anomalies. Please answer the questions below. Some fields are required for submission, but all personal data will be kept private and will only be used to contact you in the event that we need more information or if clarification is required. Please be as complete as possible when reporting an incident. Thank you!

Privacy Information: The privacy of our customers has always been of the most importance to the Navigation Center. NAVCEN has a long history of protecting your privacy and our concern for your privacy is no different in the electronic age. Our Internet privacy policy is:

  • You do not have to give us personal information to visit our site.
  • We will collect personally identifiable information ( name, email address, telephone number) only if specifically and knowingly provided by you.
  • Information is collected for informational purposes only and it may be used to contact individuals for further information.
  • We do not disseminate any personal information to any party outside of the U.S. Government. We typically work with the U.S. Air Force (USAF), Federal Communications Commission (FCC), and the Federal Aviation Administration (FAA) when investigating signal outage and/or signal interference reports.

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* Your Name:
* Email Address:
* Telephone number: [ie. - (703) 313-5900]