Hi John
Yes, my project was a 138 ft tower for two 20M5 in stack at 69/138 bit after
running HFTA seems is not the best height
So now I don't know if keep some contesters suggestion for 69/138 or go for
HFTA at lower height
73,
Jorge
CX6VM/CW5W
Enviado desde mi iPhone
> El 18/06/2014, a las 13:35, "john@kk9a.com" <john@kk9a.com> escribió:
>
> 69 feet and 138 feet are usually very good heights for 20m. I use similar
> stacking heights and I have numerious 20m contest plaques. I have never
> used HFTA, does it model stacks properly?
>
> A 200' high 10m beam can be a very good antenna however there are many
> nulls so there will be times that is a poor antennas. This should not be
> your only 10m beam.
>
> John KK9A
>
>
>
> To: "Cqtestk4xs@aol.com" <Cqtestk4xs@aol.com>
> Subject: Re: [TowerTalk] Site Elevation and TOA
> From: Jorge Diez CX6VM <cx6vm.jorge@gmail.com>
> Date: Wed, 18 Jun 2014 10:45:06 -0300
>
> Really is nice to see HFTA suggestions
>
> For a project to put two 20M5 in a stack, I was told by several friends to
> put
> them at 69/138 ft
>
> HFTA show that this is not the best height and they must be not to high,
> 59/118
> seems to be better
>
> Anyway the practice show me that high antennas are good:-)
>
> Most of the people told me that a 10 mts antenna at 200 ft hight will not
> work,
> but really this antenna pay off all the work
>
> So now, about the 20 mts stack project, I am in doubt if I need a 118 or
> 138 ft
> tower, not sure what to do :-(
>
> 73,
> Jorge
> CX6VM/CW5W
>
>
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