Hi Doug,
I doubt that I have greater understanding of antennas than you do, but I'll
give your question a shot. Actually, I have been working on circularly
polarizing the ARROWS with the WRAPS lately, a work still in progress but
almost complete. So I am throwing out the draft information I
Jacob, for what it is worth, I built the 'eggbeater' and it was so 'noisy'
tossed it. Built the dual Moxon out of brass tubing from the hobby shop and
just love it !!! (I'm a big Moxon fan as you can tell)
The Moxi works for me. But, since you already have the KLM's, not sure you
will do better
In a message dated 5/2/2010 6:46:20 P.M. Eastern Daylight Time,
k7trkra...@charter.net writes:
I already have plans for the beams I have to be setup here at the house
I wish you the best of luck Jacob with your setup. I did quite
a bit of outdoor operation with a handheld sat antenna
Some maritime TVRO antennas used a mechanical scan at the feed point. A motor
would either rotate an attenuator disk or offset the feed in a circular motion.
A resolver kept track of the feed location in relation to received signal
strength. The antenna was then slewed in the direction of best
While searching for public text concerning Amateur satellites and
phased array antennas, I came across this gem from our very own Tom
Clark, K3IO
http://mysite.verizon.net/w3iwi/electronic_scanning_antennas.pdf,
Electronic Scanning Antennas for Amateur Spacecraft. I wonder if
this knowhow could be
not bad concepts. Face it, we are not going to
make working the world on an HT a viable proposition.
Robert WB5MZO
From: samudra.ha...@gmail.com
Date: Thu, 22 Oct 2009 15:16:25 -0400
To: amsat-bb@amsat.org
Subject: [amsat-bb] Re: antenna question
While searching for public text concerning
: amsat-bb-boun...@amsat.org [mailto:amsat-bb-boun...@amsat.org] On
Behalf Of Samudra Haque
Sent: Thursday, October 22, 2009 12:16 PM
To: Amsat-bb
Subject: [amsat-bb] Re: antenna question
While searching for public text concerning Amateur satellites and
phased array antennas, I came across this gem
True, but since the QST article mentioned a phasing line, I was trying to
figure out his design.
George, KA3HSW
- Original Message -
From: Nigel Gunn G8IFF/W8IFF ni...@ngunn.net
Subject: [amsat-bb] Re: Antenna Question
To: George Henry ka3...@att.net
Cc: amsat bb amsat-bb@amsat.org
Sounds like the QHTennas, made by N4QH. Reviewed in QST in 2005, then he
stopped producing them just a few months later.
Near as I could figure out, they are a conventional turnstile design, but
with the 2 dipoles separated by the length of the phasing line, and no
reflector.
George, KA3HSW
:
From: David - KG4ZLB kg4...@googlemail.com
Subject: [amsat-bb] Re: Antenna Question
To: amsat-bb@amsat.org
Date: Saturday, July 4, 2009, 11:28 AM
How can you upload a web page if you
have your dog on it ? Move the
dog first then try! ;-)
Happy 4th all!
73
--
David
KG4ZLB
The product review is in the August 2004 QST. If you have access to the reviews
page you can find it under the Q listings by manufacturer.
Jim KQ6EA
--- On Sat, 7/4/09, George Henry ka3...@att.net wrote:
From: George Henry ka3...@att.net
Subject: [amsat-bb] Re: Antenna Question
To: amsat bb
- Original Message -
From: Jim Jerzycke kq...@pacbell.net
To: amsat bb amsat-bb@amsat.org; George Henry ka3...@att.net
Sent: Saturday, July 04, 2009 1:54 PM
Subject: Re: [amsat-bb] Re: Antenna Question
The product review is in the August 2004 QST. If you have access to the
reviews page you can find
I would suggest that you don't need a phasing line if the dipoles are spaces a
quarter wave and that both are fed by
equal length cables.
George Henry wrote:
Looking at the pictures, it appears that the dipoles are separated by about
1/4 wave in free space, which is physically longer than a
That's them. Thanks, George and, David, I got the dog off the webpage. ;)
Tnx,
Joel, W4JBB
George Henry wrote:
Sounds like the QHTennas, made by N4QH. Reviewed in QST in 2005, then he
stopped producing them just a few months later.
Near as I could figure out, they are a conventional
It surprises me that nobody appears to sell commercially made Lindenblads.
Jim Jerzycke wrote:
An altenative would be to build a Lindenblad like Tony AA2TX designed. I have
the parts collected to do just that, but won't have the time to build one for
a few weeks.
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