I

PREFACE

The 2005 edition of Pub. 117, Radio Navigational Aids, is a

list of selected worldwide stations which provide electronic

services to the mariner. This edition cancels all previous

editions of Pub. 117. The listing is divided into chapters

according to the nature of the service performed by the

stations. The first numeral (hundreds digit) of section numbers

of text and the first numeral (thousands digit) of station

numbers correspond to the chapter number.

Radiobeacons, the only category of radio navigational aids not

listed in this book, are grouped geographically and carried in the

NGA Lists of Lights, Pub. 110 - 116, and USCG Light Lists.

References to publications produced or sold by NGA will be

followed by the stock number in parentheses.

Times quoted herein are, unless otherwise stated, in

Coordinated Universal Time (UTC) and hours are reckoned

from 0000 to 2359.

All bearings are true and are measured in degrees

clockwise from 000 ̊ (true north) to 359 ̊. The sectors of radio

direction finder stations are given as looking from the station

to seaward in accordance with international practice; it

should be noted that this is the reverse of the method used in

the light lists for expressing the sectors of lights.

Distances are reckoned in nautical miles unless otherwise

stated.

When the term “plain language” is used in the description of

the services rendered by a station, it signifies that the service is

in the language of the country controlling the station, unless

stated to be otherwise.

The hertz is the unit for the operating frequencies of

communications-electronics equipment. Frequencies will

normally be expressed as follows:

(1) In kilohertz (kHz) up to and including 300 kH

(2) In megahertz (MHz) up to and including 300 M

(3) In gigahertz (GHz) up to and including 300 GH

Note: In practice, kilohertz may be used up to 30,0

Nothing in the manner of presentation or arran

information in this publication implies endor

acceptance by NGA in matters affecting the 

boundaries of states and territories.

This edition contains information available to th

Geospatial-Intelligence Agency up to 27 Novem

including Notice to Mariners No. 48 of 2004. C

which have accumulated since that date will be in S

the Notice to Mariners which announces the issua

publication. Subsequent corrections are included 

Section II. All of these corrections should be app

appropriate places and their insertion noted in the “

Corrections” on the next page.

Mariners and other users are requested to forwa

corrective information useful in the correctio

publication to:

MARITIME DIVISION

ST D 44

NATIONAL GEOSPATIAL-INTELLIGENCE AG

4600 SANGAMORE ROAD

BETHESDA MD 20816-5003

CAUTION

Plans for air defense of the United States m

temporary suspension of the operations of certain 

aids to navigation with little or no advance notice.
II

RECORD OF CORRECTIONS

PUBLISHED IN WEEKLY NOTICE TO MARINERS

NOTICE TO MARINERS

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