[amsat-bb] Re: STRaND1 polarity shift observation

Ken Swaggart k.swaggart at charter.net
Mon Mar 4 08:02:49 PST 2013


Thanks for sending the K4KJ article.

However my question was why does STRaND1, which only has a whip antenna, 
sometimes appear to exhibit circular polarity characteristics?  I would 
expect a whip antenna transmitting from space to have the same signal 
strength on the ground using either RH or LH polarity on my receiving 

Ken, W7KKE

-----Original Message----- 
From: i8cvs
Sent: Monday, March 04, 2013 00:42
To: Ken Swaggart ; Amsat - BBs
Subject: Re: [amsat-bb] STRaND1 polarity shift observation

Hi Ken, W7KKE

The answere to your question is clearly described into the zipped article
"Circular Polarization" by K4KJ, 5 MB long that I have sent to you in
a separate email.

73" de

i8CVS Domenico

----- Original Message -----
From: "Ken Swaggart" <k.swaggart at charter.net>
To: <amsat-bb at amsat.org>
Sent: Monday, March 04, 2013 5:10 AM
Subject: [amsat-bb] STRaND1 polarity shift observation

> During my last pass at 0332Z, max elevation 45 degrees out over the
> I noticed that STRaND1 was stronger when I selected LHCP while approaching
> TCA.  After TCA, RHCP was stronger while it was receding.  I believe this
> cubesat uses a whip, so not sure what is causing this.
> Anyone have an idea why?
> Tnx,
> Ken, W7KKE
> CN75xa
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