[amsat-bb] Re: Antenna advice
n6kth at n6kth.com
Fri Jan 4 17:18:42 PST 2008
Does that apply to the ISS as well?
Ken Owen, N6KTH
From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
Behalf Of Robert Bruninga
Sent: Friday, January 04, 2008 3:56 PM
To: 'Jeff Mock'; 'Amsat-Bb at Amsat. Org'
Subject: [amsat-bb] Re: Antenna advice
> I'm new to satellite stuff.
> Do I need an az-el rotator
Not at all for any of the present satellites. Just a $75 TV
rotator from radio shack. Tilt your Arrow up a fixed 15 degrees
and you can work the satellites from horizon to horizon.
LEO satellites are below 30 degrees 75% of the time. When they
are above 30, they are 6 to 10 dB closer and so pointing is not
an issue. They are below 45 degrees 94% of the time. Above 60
degrees only 2% of the time and it just isnt worth chasing that
See the plot on:
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