[amsat-bb] Az-El Rotors

[Jerry Conner]

I was wondering about the Lindenblad antennas.  I live in an area where winter conditions aren't always conducive to going outside and working the Sats and eventually want to have an Az/El system but until the time and money are available I was considering building this style of antenna.  
Does anybody have experience and/or recommendations?

Thanks
Jerry
W4JWC

-----Original Message-----
From: AMSAT-BB [mailto:amsat-bb-bounces at amsat.org] On Behalf Of A. Kevin Arber
Sent: Monday, January 25, 2016 9:09 AM
To: Greg <gjd1958 at verizon.net>
Cc: AMSAT bbs <amsat-bb at amsat.org>; Fred Castello <fredcastello at gmail.com>
Subject: Re: [amsat-bb] Az-El Rotors

Agree about the "Eggbeater" style.  When I first returned to the sats I homebrewed a couple and they worked fine.  But even better is a Moxin style which provides gain and circular polarization.  See Larry Cebik"s article in August 2001 QST.  I built these and they worked great for the LEOs.
Great for portable too, as are omnidirectional.
Kevin/W3DAD

On Mon, Jan 25, 2016 at 6:38 AM, Greg <gjd1958 at verizon.net> wrote:

> Fred,
>
> In addition to Kevin’s idea, you might want to consider some home-brew 
> “eggbeaters.”  When I first started on the LEO’s, they worked fine to 
> get into the birds, including the ISS.  Won’t outperform a beam many 
> times, but they are efficient for the cost.
>
> Greg
> N3MVF
>
> On Jan 25, 2016, at 5:06 AM, A. Kevin Arber <kevin.w3dad at gmail.com> wrote:
>
> Hi Fred,
> If you're working the current crop of LEO sats, then you don't need an 
> AZ/EL setup.  Just AZ will do with the Arrow antenna set to about 20 
> degrees elevation.  I control my HD-73 with the Easy Rotor Controller 
> (ERC) using SATPC-32.  Very simple and works well with the  Arrow.  
> Get you started without too much invested.
> Kevin/W3DAD
>
> On Sun, Jan 24, 2016 at 11:13 PM, Fred Castello 
> <fredcastello at gmail.com>
> wrote:
>
> > Please excuse the newbie.  I have been receiving signals on SSB, CW, 
> > Packet, and FM via just listening for a while now.  I am newly back 
> > into the satellites as I used to work the high elliptical orbit 
> > birds years ago.  Let my license lapse and just got it back and 
> > upgraded.  Now
> getting
> > the satellite bug again and have really tried researching on the net 
> > but
> am
> > a bit frustrated by the paucity of az-el rotors available.  It seems 
> > that there are primarily the Yeasu G-5500 type at $700 to $800 or 
> > more or make your own and really no in-between.  I am looking to 
> > have a permanent installation that could track both az and el and 
> > preferably be controlled by SatPC32.  I am thinking of starting with 
> > a small single antenna with both 2m and 70cm on it (i.e. Arrow or 
> > other) which would present very low windage.  When I initially got 
> > re-interested I was imaging a cheap
> solution
> > with TV rotors but I don’t see any folks doing this and I would 
> > prefer
> not
> > to have to set my antenna solution up every time I want to work the 
> > satellites.  Am I missing something or could someone point me to an
> article
> > or reference that I am not aware of?  I really appreciate all of the 
> > collective experience in this group and thanks for your time!  I am
> using a
> > Kenwood TS 790A without the 1.2 Ghz installed.
> > Best,
> > Fred Castello, KF4FC
> > _______________________________________________
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> _______________________________________________
> Sent via AMSAT-BB at amsat.org. AMSAT-NA makes this open forum available 
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