Tree
I did model my system, but only a very rudimentary replication. I just modelled
the Yagi on top as a big T. I just did it to grossly represent the driver in
my parasitic array.
Maybe you have already seen my shunt feeding video, but if not maybe check it
out. I talk about some tricks to simplify finding the 50 ohm match point for
the shunt arm. If you measure the real R at the shunt arm location now with
the new top loading, you should get a pretty good idea how far up to move the
tap.
https://youtu.be/cHlc5MTGTFM
This video talks about the Omega match if you don’t want to move the shunt arm.
https://youtu.be/NA-Kwr09j8M
73, de Steve Ve6wz
From Babcocks iPhone
> On Aug 4, 2020, at 11:01 AM, Tree <tree@kkn.net> wrote:
>
> Anyone have an EZNEC model of a gamma matched tower for 160 (or 80 meters)
> they are willing to share? I put a bigger antenna on top of my tower and
> would like to take some of the guesswork out of fixing the SWR.
>
> Thanks.
>
> Tree N6TR
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