[amsat-bb] Re: Sat antenna fixed elevation -- how many degrees is the best?

Dave Guimont dguimon1 at san.rr.com
Tue Feb 19 11:48:22 PST 2008

>I've seen people with fixed elevations of 25, 30, 35
>degrees, any consensus on which is the best?  And how
>well, if at all, does an antenna with a fixed
>elevation of 30 degrees or so perform when the sat is
>higher than 60 degrees?
>Hi Bill,

I assume you are rotating in AZ.

Determine your beam width, divide by two, and 
that is your EL.  I would tend to favor the 
horizon, obviously the greatest range.

I use home brew quadrifilars, rotate with a 
little TV rotor, 2M and 70 cm on the same mast. 
By experiment, I determined the beamwidth ~65°, so I fixed EL at 30°.

And if the satellite downlink is strong enough to 
be heard at all I get the entire pass....

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            73, Dave, WB6LLO
                dguimon1 at san.rr.com

                    Disagree: I learn....

               Pulling for P3E...  

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