[amsat-bb] Az-El Rotors
A. Kevin Arber
kevin.w3dad at gmail.com
Mon Jan 25 14:08:56 UTC 2016
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.
On Mon, Jan 25, 2016 at 6:38 AM, Greg <gjd1958 at verizon.net> wrote:
> 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.
> 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
> 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.
> On Sun, Jan 24, 2016 at 11:13 PM, Fred Castello <fredcastello at gmail.com>
> > 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
> > the satellite bug again and have really tried researching on the net but
> > 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
> > with TV rotors but I don’t see any folks doing this and I would prefer
> > 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
> > 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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