HFTA may have issues. However, 139/69 stack is not close spaced. It is
approximately one wavelength.
I am a firm believer in BV's HFTA and have used it to design both of my
last two stations. And, if the sale of my house goes through, I'll use it on
my next place.
K4XS
In a message dated 3/10/2015 1:11:49 A.M. Coordinated Universal Time,
w0mu@w0mu.com writes:
What values did you get using HFTA. HFTA has some issues with very
close spaced stacks. The numbers are wrong.
Mike W0MU
On 3/9/2015 7:09 PM, Jorge Diez - CX6VM wrote:
> Thanks Jim
>
> Sorry for the delay, just returning from along trip after ARRLDX SSB
>
> Is curious HFTA. It stopped my project for a two stack for 20 mts yagís.
> Since many contesters told me to put it at 69/139 ft, HFTA told me that
this
> is not the best distances.
>
> OK about your document, will read it, but here we don´t have such
facilities
> than in USA to know ho´w the ground conductivity, the terrain data, etc,
etc
>
> 73,
> Jorge
>
>
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