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

Dave Guimont dguimon1 at san.rr.com
Fri Aug 19 14:40:48 PDT 2011

>For additional information read
>  http://www.w2du.com/r2ch22.pdf
>and look at Fig 22-7 page 10 of 20 Radiation Pattern of the 1 1/2
>turn 1,25 wavelenght Quadrifilar Antennas.

Tnx, Dom for that info.

I received a number of requests for quadfilar information, again.


and see the five files starting with the pic Quad2.4gigs

Be very precise with the measurements, particularly on the 435...
I scaled it from the 2 meter, made a slight measuring error on the 
driven filar, shortened it by 1/4" and the swr went from 3 to 1 to 1.6 to 1....

And use the BEST "N" connectors and coax that you can find, the most 
expensive part of the antenna....

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

                    Disagree: I learn....

               Pulling for P3E... 

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