[amsat-bb] Re: Antenna advice
bruninga at usna.edu
Fri Jan 4 15:55:35 PST 2008
> 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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