I'd also look at the WA5VJB "cheap yagi" designs. Simple and
inexpensive to build. You'd need an azimuth rotator but any old cheap TV
one would do the job. You don't really need elevation with beams for the
LEO's ( and that's all that's up there anymore anyway). Just point it
upward at about a 20 to 30 degree angle and it will be fine. There are
also articles online about homebrewing "egg beaters" and a variation
called the "Texas Potato Masher" but I believe the TPM needs an azimuth
rotator as well.
73,
Michael, W4HIJ
On 5/12/2011 9:13 AM, William H. Fite wrote:
Thanks, Tim, I'll check it out.
On Wed, May 11, 2011 at 10:22 PM, Tim Ellison<[email protected]> wrote:
If you want a little more challenging antenna project for LEOs, look at an
Double Cross. I built one last fall and I have an OK view of the horizon
and my AOS is about 3-4 degrees above the horizon for LEOs and the ISS. It
throws in some phasing which makes it more fun to build.
http://www.hffax.de/html/simple_apt_antenna.html
http://www.poes-weather.com/~aptdecoder/jerry/CrossConcept/Documents/MARTES-QST-Feb-2008.pdf
http://www.poes-weather.com/~aptdecoder/jerry/CrossConcept/Documents/DCA-For-Beginner.doc
http://rjclick.perso.sfr.fr/cariboost_files/DCA-Assembly-Hints.pdf
-Tim
-
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