[amsat-bb] Re: Stacked loops?

Roger Kolakowski rogerkola at aol.com
Sun Nov 9 14:34:38 PST 2008

I've seen stacked turnstiles...probably in some of the ARRL VHF
literature...might be a good place to start


----- Original Message -----
From: "Jim Leder" <k8cxm at fuse.net>
To: "Amsat" <AMSAT-BB at amsat.org>
Sent: Sunday, November 09, 2008 12:29 PM
Subject: [amsat-bb] Stacked loops?

> This may be a dumb question, but has anyone had any experience or luck
using stacked 432 and 144 loops? Seems they offer a little gain and a nice
omni directional pattern. If they are high enough off the ground, some of
the lesser lobes would point near straight up. I have used a 0 gain dual
band loop (E-factor) with some success on the closer in passes of VO52, FO29
and AO7, but it has been not very effective with AO51. Of course, I know
nothing would compare with a high gain,  parasitic array, but not all of us
have the means nor the location to do that. Stacked loops seem like a good
idea, but I've never seen anyone mention it.
> Thanks ....
>      Jim Bob Buckeye
>             AKA
>   **** Jim Leder****
>     K8CXM since 1961
>  IBM retiree since 1999
> There are 10 types of people in this world -- those who understand binary
> and those who don't.
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