[TowerTalk] Stacking Tribanders

[David Gilbert]

HFTA should never be used to try to optimize stacking distance.  It 
simply does not actually calculate the stacking gain as a function of 
stacking distance like EZNEC would.

73,
Dave   AB7E



On 6/21/2022 10:34 AM, sawyered at earthlink.net wrote:
> HFTA kinda sorta calculates stacking properly.  It seems to assume you get
> the optimum 2.7db stacking gain whether the spacing is optimum or not.  And
> it draws the HFTA ray from the center point between the 2.  So it would
> calculate a 2 high stack of 20M yagis having an added 2.7db of gain even if
> they are stacked only 20 ft apart and will draw the enhanced ray from the
> midpoint between the 2 yagis.
>
>   
>
> Ed
>
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