Radio Navigational Aids

Radio Navigational Aids

The front cover of Radio Navigational Aids.
Purpose:	Detailed list of worldwide radio stations offering marine service.
Publication Frequency:	Yearly
Published by:	National Geospatial Intelligence Agency
Available Online:	Yes NGA Website

The Radio Navigational Aids (Publication 117) publication contains a detailed list of selected worldwide radio stations that provide services to the mariner.^[1] The publication is divided into chapters according to the nature of the service provided by the radio stations.^[1] The services include Radio direction finder and Radar Stations; stations broadcasting navigational warnings, time signals or medical advice; communication traffic for distress, emergency and safety including the Global Maritime Distress Safety System (GMDSS) and long range navigational aids.^[1] It also contains chapters describing procedures of the AMVER System, and the interim emergency procedures and communication instructions to be followed by U.S merchant vessels in times of crisis.^[1] A new edition of Publication 117 is published annually.^[1] This publication is available in its entirety on the website and there are also database queries available for much of the data contained within.^[1]

Notes

1. National Geospatial Intelligence Agency, 2008.

See also

• American Practical Navigator
• Buoy
• Coast Pilots
• Light List
• List of Lights
• Local Notice to Mariners
• Notice to Mariners
• Sailing Directions

References

• National Geospatial Intelligence Agency (2008). "Radio Navigational Aids". Maritime Safety Information. National Geospatial Intelligence Agency. Retrieved 2008-04-08.
• Bowditch, Nathaniel (2002). The American Practical Navigator. Bethesda, MD: National Imagery and Mapping Agency. ISBN 0-939837-54-4.

External links

• Chapter 4: Nautical Publications - from the online edition of Nathaniel Bowditch's American Practical Navigator