Unless you're a big-gun VHF/UHF contester that needs every last dB of
antenna gain, circularly polarized sat antennas will work quite nicely
for Terrestrial work. This is especially true on 70cm where the gain
from a 40 element M^2 436CP like the one I have is so high that the 3dB
loss is
Horizontally polarized beams will not work very well for satellite use. For
maximum utility, I'd get crossed yagis set up to switch between horizontal,
vertical, and circular polarization. Use the circular polarity to work the
sats, horizontal polarity to do weak signal work, and vertical
, but not necessary.
WA4HFN Damon em55
- Original Message -
From: Andrew Glasbrenner glasbren...@mindspring.com
To: Jeff Moore tnetcen...@gmail.com
Cc: amsat-bb@amsat.org
Sent: Friday, March 18, 2011 3:42:54 PM
Subject: [amsat-bb] Re: more antenna discussions
On Mar 18, 2011, at 4:13 PM
+2 with what Drew says. I've been using my M2 2M7 and 420-50-11 like
this for years.
When I first had them on the roof at my apartment, they were on a single
mast, with azimuth only rotation. I had to carefully choose my passes
for low elevation so the satellite didn't rise out of the pattern,
decreases and the most part of the
time in wich a LEO satellite during a pass is above 45 degrees elevation
is very small.
73 de
i8CVS Domenico
- Original Message -
From: Jeff Moore tnetcen...@gmail.com
To: amsat-bb@amsat.org
Sent: Friday, March 18, 2011 9:13 PM
Subject: [amsat-bb] Re: more
