[amsat-bb] Lindenblads

[Doug - k4gkj]

RE read his question. 
He was asking the benifit of having a RH &  LH versus just one that did have a switch....... 

I too wonder what the benefit and reasons for having such.... 


Doug Bennight
K4GKJ
850-528-5772
850-926-2052 




-------- Original message --------
From: Jim Jerzycke <kq6ea at verizon.net> 
Date:  
To: amsat-bb at amsat.org 
Subject: Re: [amsat-bb] Lindenblads 
 
You can't switch polarity on a single Lindenblad.

The polarity is determined by the mechanical "slant" of the elements, 
hence the need for one each of RHCP and LHCP.

You'd then switch feedlines to the radio for the polarity desired.

73, Jim  KQ6EA



On 09/15/2014 01:38 AM, Robin Midgett wrote:
> Hello to the group,
> I'd like to hear from any users of the Lindenblad antennas regarding
> switching polarity & circularity.
> Based on the article on the AMSAT web page by W6SHP at
> http://www.amsat.org/amsat/articles/w6shp/lindy.html, I'm led to believe
> that the maximum effect comes from having one Lindy for each of RHCP & LHCP
> per band in addition to being able to invert the polarity of each.
> I'd like to hear from users concerning how often switching between RH & LH
> circularity yields benefits as compared to switching polarity on a single
> Lindy.
>
> I've long had an interest in satellite operation. Due to being involved
> with a recent ARISS event, the interest level has been elevated..it's time
> for me to get on the birds. I welcome your input regarding the Lindenblad
> antennas.
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_______________________________________________
Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available
to all interested persons worldwide without requiring membership. Opinions expressed
are solely those of the author, and do not reflect the official views of AMSAT-NA.
Not an AMSAT-NA member? Join now to support the amateur satellite program!
Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb