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Trapped Antennas
Additional information on this subject and related topics can be found in back issues of QST and the following:
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.
- Coaxial cable Antenna Traps (1,318,022 bytes, PDF file)
QST May 1981, pp. 15-17
Both the coil and capacitor of a parallel-resonant antenna trap can be made from the same length of coaxial cable. Sound intriguing? Here’s how.
- Build a Space-Efficient dipole Antenna for 40, 80, and 160 Meters (570,975 bytes, PDF file)
QST July 1992, pp. 35-36
A new trap design, using only RG-58 and PVC pipe, yields better space efficiency than conventional coaxial traps.
- Two New Multiband Trap Dipoles (785,934 bytes, PDF file)
QST August 1994, pp. 26-29
W8NX details a new coax trap design used in two multiband antennas; one covering 80, 40, 20, 15, and 10 meters, and the other covering 80, 40, 17, and 12 meters.
- An Improved Multiband Trap Dipole Antenna (156,121 bytes, PDF file)
QST July 1996, pp. 32-34
You need this - traps with lower loss, higher Q, increased power-handling capability and four-band coverage. Also build a multiband dipole for 80-, 40-, 17-, and 10-meters only 84 feet long.
- Taming the Trap Dipole ( 151,344 bytes, PDF file)
QST March
2002, pp. 28-30
A trapped dipole for 10/15/17 meters
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:
CONSTRUCTION TRAP ANTENNA
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: 11:03 AM, 18 Jul 2002 ET
Page author: tis@arrl.org
Copyright © 2002, American Radio Relay League, Inc. All Rights Reserved.
