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ARRL Products:
History/Adventure(More)
ARRL's Vintage Radio -- Articles about the lure of vintage Amateur Radio gear.
Perera's Telegraph Collectors Guide -- Coming Soon!
-- The most complete source of information for all those interested in telegraph keys from beginner to avid collector.
The Secret Wireless War -- New 2007 Printing. Now Shipping!
-- The Story of MI6 Communications--1939-1945 (World War II). This is an extraordinary story that includes hams among those patriots that undoubtedly helped the allied war effort.
World War II Radio Heroes: Letters of Compassion -- Now Shipping!
-- A story about ham radio operators and others who helped ease worries during a time of war.
Radio Rescue -- A children's book based on the experiences of a young ham operator. Easy-to-read and colorfully illustrated.
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Direction Finding
Introduction
Every weekend, in cities and towns all across the country, ham radio operators gather on hilltops for a very special kind of contest--the Fox Hunt. A small, low power transmitter is hidden and the rest of the crew tries to find it. Sound simple? It can be very challenging and a whole lot of fun. The direction finding skills learned in this activity can be very valuable in locating a repeater jammer, or a lost hiker.
Stalking the Fox is a brief overview on the subject, with Transmitter Hunting: Tracking Down the Fun going into more detail. See also the list of other articles on direction finding equipment.
Additional resources
The ARRL has an extensive catalog of books and materials related to Amateur Radio.
Articles
Note: Some of the following articles are in Adobe Portable Document Format (PDF) files. To view and print these files, you'll need a copy of Adobe's Acrobat Reader program. (Version 3.0 or later required). More information here.
- Stalking the Fox (234,778 bytes, PDF file)
QST October 1993, pp. 64-65
An introduction to Fox Hunting (Direction Finding)
- Transmitter Hunting: Tracking Down the Fun--Part 1 (2,003,940 bytes, PDF file)
QST April 1993, pp. 48-51
More general information on Fox Hunting
- Transmitter Hunting: Tracking Down The Fun--Part 2 (2,058,076 bytes, PDF file)
QST May 1993, pp. 56-58
- Build the HANDI-Finder! (835,243 bytes, PDF file)
QST May 1993, pp. 35-38
A hand-held direction finder that when connected to your HT or FM scanner can locate AM or FM sources over the range or 45 to 470 MHz
- The NVARC FoxFinder (170,276 bytes, PDF file)
QST April 2001, pp. 35-39
This little fox hunt sniffer is designed to locate the transmitter down to the last few meters--where other techniques often fail
- A Doppler Radio-Direction Finder Part 1 (691,450 bytes, PDF file)
QST May 1999, pp. 35-40
This four-antenna system used the Doppler effect to track down a signal.
- A Doppler Radio - Direction Finder Part 2 (179,174 bytes, PDF file)
QST June 1999, pp. 37-40
- The Four-Way Dfer (376,266 bytes, PDF file)
QST November 1995, pp. 29-35
A system outwardly similar to the Doppler Radio unit above, but with a different approach--multipath reception.
Feedback: December 1995, p. 79 (6,770 bytes, PDF file)
Feedback: February 1996, p. 81 (5,195 bytes, PDF file)
- A Fox-Hunting DF Twin 'Tenna (130,431 bytes, PDF file)
QST October 1998, pp. 41-44
An improved 2 meter Yagi optimized for direction finding.
Feedback: The ferrite beads specified in Table 2 are all available from All Electronics Corp
Note:
Contact information for suppliers mentioned in the above articles should first be confirmed using TIS Address Database Search.
Bibliography (Members Only)
ARRL Periodicals Index Search - This database contains the QST index from 1915 to the present and the QEX index from 1981 to the present. For QST issues from 1970 to the present, and some selected articles back to 1922 (when construction articles featuring tubes began in earnest), identifying keywords have been added to the technical articles. By entering keywords (ANTENNA) or combinations of keywords (CONSTRUCTION ANTENNA VERTICAL HF) into the Title words: field, you may create dynamic bibliographies.
Technical article KEYWORD list. Hints for more successful searching
Suggested keywords for more articles like the ones on this page are: DIRECTION FINDING
Web Links:
Article Reprints:
You can get a photocopy of any ARRL published article for $3 ($5 for nonmembers) for each article requested. Contact the ARRL Technical Department (reprints@arrl.org ), 1-860-594-0390) if you wish to get photocopies.
This information was prepared as a membership service by the American Radio Relay League, Inc., Technical Information Service, 225 Main St., Newington, CT 06111 (860) 594-0214. Email: tis@arrl.org (Internet). ARRL HQ is glad to provide this information on the Web free of charge as a service to League members and affiliated clubs.
If you have any questions concerning the reproduction or distribution of this material, please contact:
TIS Coordinator
American Radio Relay League
225 Main St., Newington, CT 06111
Tel: 860-594-0214 Fax: 860-594-0259
(email: tis@arrl.org)
Page last modified: 11:51 AM, 15 Aug 2007 ET
Page author: tis@arrl.org
Copyright © 2007, American Radio Relay League, Inc. All Rights Reserved.
