[amsat-bb] Re: 1.2GHz and K5GNA BBQ Ant ??
jmfranke at cox.net
Fri Nov 17 15:07:14 PST 2006
In the Proceedings of the AMSAT-NA 22nd Space Symposium, Anthony Monteiro,
AA2TX, presents a paper "From Sizzling Hot BBQ to Cool BUD-Lite," pages
168 -183. The article presents measured results of adding a screen surface,
adding baffles, and using a newly design horn feed to 39" by 24" barbeque
dish. If your antenna is down for modifications, I would highly recommend
the article. Each step was a significant improvement. He reported the Sun
noise increase with a dipole feed increased from 1.5 dB for the stock dish
and feed to 1.9 dB by adding the aluminum foil. Screen wire should produce
----- Original Message -----
From: "Bill Booth" <710138 at ican.net>
To: <Amsat-bb at amsat.org>
Sent: Friday, November 17, 2006 5:11 PM
Subject: [amsat-bb] 1.2GHz and K5GNA BBQ Ant ??
> Mark Brueggemann K5LXP recently inquired about a 1.2GHz antenna but
> mentioned he had a K5GNA barbecue dish and converter. Since I have my
> antennas down for rework, (since I moved) I am wondering the same thing.
> I am also curious if covering the BBQ grill with screening material on the
> K5GNA unit is worth the trouble. There was lots of discussion about it
> AO-40 was working, but I do not remember anyone saying it was worth the
> trouble. Anybody add the screen material to the unit and what kind of
> improvement did you hear......
> Bill Booth VE3NXK
> Sundridge ON, Canada
> 79.23.37 W x 45.46.18 N
> Visit my weather WebCam at http://www.almaguin.com/wxcurrent/weather.html
> Sent via AMSAT-BB at amsat.org. Opinions expressed are those of the author.
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