[amsat-bb] Re: Turn off AGC when receiving BPSK-1000

Dave Guimont dguimon1 at san.rr.com
Thu Aug 18 22:31:07 PDT 2011

>You don't have to use a narrow beam antenna with maximum gain on axis.
>You can always design it with a bowl-shaped pattern that increases gain
>toward the edges and lowers it in the middle.

That's why the quadrifilars work so well. I measured the pattern some 
time back, and the "beam width" is about 140 degrees....

Point them straight up and be satisfied with that part of a pass, or 
mount them at 40 degrees, and rotate AZ with a TV rotor for the 
entire pass. For 50 degree max passes point them at the center of the pass...

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

                 Disagree: I learn....

            Pulling for P3E...  

More information about the AMSAT-BB mailing list