The Satellite Experimenters Handbook by Martin Davidoff K2UBC (1990 Pages 8-15 & 16) and it's successor The Radio Amateur's Satellite Handbook (1998 pages 10-13 to 10-15) both have details of this antenna, its use and its construction. I recommend this book to all satellite experimenters and users, it may be nearly 10 years old but the principles and information contained therein have not changed.
Robin Haighton VE3FRH Immediate Past President AMSAT
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Nick Pugh Sent: Friday, November 02, 2007 7:35 AM To: John Marranca, Jr; amsat-bb@amsat.org Subject: [amsat-bb] Re: Quadrifilar Helices
QST ran an article a few years back
nick ----- Original Message ----- From: "John Marranca, Jr" KB2HSH@amsat.org To: amsat-bb@amsat.org Sent: Thursday, November 01, 2007 8:46 AM Subject: [amsat-bb] Quadrifilar Helices
Does anyone know of a website or of construction plans for an 70 cm Quadrifilar Helix antenna? I have heard that they work quite well for an omni-directional LEO antenna. I am looking for an improvement over my Eggbeaters, which have been excellent thus far.
Thanks
John KB2HSH
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John Marranca, Jr PBX Technician/Shop Steward CWA Local 1122 BN Systems, Inc Orchard Park, NY (716)972-2006 _______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
_______________________________________________ Sent via AMSAT-BB@amsat.org. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb