[amsat-bb] Lindenblads

Jim Jerzycke kq6ea at verizon.net
Mon Sep 15 02:21:42 UTC 2014

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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