[amsat-bb] Az-El Rotors

Steven Kalmar pista01 at gmail.com
Mon Jan 25 14:12:36 UTC 2016

Satnogs has a pretty good AZ/EL rotator design -

I'm not sure how well it holds up in a permanent installation.  I started
building it but ended up making my own design.


On Mon, Jan 25, 2016 at 8:57 AM, JoAnne Maenpaa <k9jkm at comcast.net> wrote:

> Hi Fred,
> > ... starting with a small single antenna with both 2m and 70cm on
> > it (i.e. Arrow or other) ...
> I've found that an azimuth-only rotor with a fixed elevation of 20° or so
> works well enough for most of what I do with LEO satellites. I got my rotor
> from ebay for $20. It is a primitive setup - manual tracking. Much of the
> time I prefer using an Arrow antenna.
> If you are looking for rotor projects there have been two designs
> published over the past year or so in the AMSAT Journal. Here is some
> information you can use to find out more about these:
> The AMSAT store has the printed circuit board for WA8SME's WRAPS
> inexpensive, portable az-el rotor system. See http://store.amsat.org and
> look for the "WRAPS Tracker Circuit Board". There is also a link to the
> article by Mark, WA8SME.
> Bob, KI4SBL, wrote an article about his homebrew az-el rotor system,
> "CNCTRK – A LinuxCNC Based Satellite Tracking System", for the AMSAT
> Journal. Bob has details of this project and the parts he sells along with
> a PDF of the article posted on his web site:
> http://ki4sbl.dodropin.org/CNCTRK/
> --
> 73 de JoAnne K9JKM
> k9jkm at amsat.org
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