[amsat-bb] Re: Egg beater vs Quadrifilars
domenico.i8cvs at tin.it
Tue Jan 1 20:15:19 PST 2008
----- Original Message -----
From: "Dave Guimont" <dguimon1 at san.rr.com>
To: <amsat-bb at amsat.org>
Sent: Wednesday, January 02, 2008 1:37 AM
Subject: [amsat-bb] Egg beater vs Quadrifilars
> See quadfilxxxxx on:
> With detailed measurements for 2M, 435 and wx satellites....I scaled
> one for 2.4 gig feed on a 36" dish, and it worked very well, but not
> sure it was fully illuminated....
> 73, Dave, WB6LLO
> dguimon1 at san.rr.com
> Disagree: I learn....
> Pulling for P3E...
Hi Dave, WB6LLO
Your Quadrifilar Helix will work very well as a feed for a dish and with a
minimum spillower if the F/D ratio of the dish is ranging from 0.3 to 0.35
See my article " Experimental Investigation on Quadrifilar Helix Antennas
for 2400 MHz" publisched in AMSAT-Journal May/June 2004
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