Does that apply to the ISS as well?
Thanks,
Ken Owen, N6KTH
-----Original Message----- From: amsat-bb-bounces@amsat.org [mailto:amsat-bb-bounces@amsat.org] On Behalf Of Robert Bruninga Sent: Friday, January 04, 2008 3:56 PM To: 'Jeff Mock'; 'Amsat-Bb@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 2%.
See the plot on: http://www.ew.usna.edu/~bruninga/rotator1.html
Bob, Wb4APR
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