Steve
Nice job with the video. Having built plenty of shunt fed (gamma match)
systems, I found your info confirming very nicely all of my “cut and tried”
methods with the added advantage of using much nicer tools.
I own the AA-55 Zoom as well and love it for this kind of work.
Thanks again!
Regards,
Mark, K1RX
> On Apr 24, 2019, at 10:23 PM, VE6WZ_Steve <ve6wz@shaw.ca> wrote:
>
> This week I added a second gamma-wire to my shunt fed tower for 160m in order
> to lower the reactance and therefore lower the voltage across my matching
> network. This winter I was having some flash-over problems.
>
> While doing this work I decided to make a video that explains the method for
> finding the 50 Ohm point on a tower, and the effect that wire diameter has on
> the SWR bandwidth and reactance at the feedpoint. I show how I use both the
> AIM-4170b and the AR 55 zoom analyzers.
>
> I wanted to post the link to the video here on the reflector because over the
> years there have been a few questions about how to shunt-feed a tower, and
> this might answer some practical questions about how to go about it. Maybe
> someone has a summer project in mind to turn their tower into a TX antenna?
>
> https://youtu.be/cHlc5MTGTFM <https://youtu.be/cHlc5MTGTFM>
>
> 73, de steve ve6wz.
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