[TowerTalk] Site Elevation and TOA

[Jorge Diez CX6VM]

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 at kk9a.com" <john at 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 at aol.com" <Cqtestk4xs at aol.com>
> Subject:     Re: [TowerTalk] Site Elevation and TOA
> From:     Jorge Diez CX6VM <cx6vm.jorge at 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
> 
>