[amsat-bb] Re: Antenna Question

2014-05-01 Thread Mark Spencer
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

[amsat-bb] Re: Antenna question continued

2010-05-02 Thread Ted
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

[amsat-bb] Re: Antenna question continued

2010-05-02 Thread K8KFJ
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

[amsat-bb] Re: antenna question

2009-10-23 Thread Howie DeFelice
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

[amsat-bb] Re: antenna question

2009-10-22 Thread Samudra Haque
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

[amsat-bb] Re: antenna question

2009-10-22 Thread Rocky Jones
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] Re: antenna question

2009-10-22 Thread Art McBride
: 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

[amsat-bb] Re: Antenna Question

2009-07-05 Thread George Henry
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

[amsat-bb] Re: Antenna Question

2009-07-04 Thread George Henry
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

[amsat-bb] Re: Antenna Question

2009-07-04 Thread R. Chastain
: 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

[amsat-bb] Re: Antenna Question

2009-07-04 Thread Jim Jerzycke
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. JimĀ  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

[amsat-bb] Re: Antenna Question

2009-07-04 Thread George Henry
- 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

[amsat-bb] Re: Antenna Question

2009-07-04 Thread Nigel Gunn G8IFF/W8IFF
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

[amsat-bb] Re: Antenna Question

2009-07-04 Thread Joel Black
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

[amsat-bb] Re: Antenna Question

2009-07-02 Thread Nigel Gunn G8IFF/W8IFF
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.