Radio Navigational Aids Pub.117 2005 Edition - Book

This is the 2005 edition of Pub. 117, Radio Navigational Aids, from the National Geospatial-Intelligence Agency (NGA). It is an older edition, offered for reference and for anyone who needs that specific edition; the 2014 edition is also available. Printed on demand as an 8.5 x 11 inch paperback.

According to The American Practical Navigator (Bowditch), Pub. 117 is a selected list of worldwide radio stations that perform services to the mariner. Topics include radio direction finder and radar stations, radio time signals, radio navigation warnings, distress and safety communications, medical advice by radio, long-range navigation aids and the AMVER system. It also explains the capabilities and limitations of the various systems.