[TowerTalk] HFTA Stacks

[AA4NU]

Per the instructions, close spaced
stacks, in terms of wavelength, is
something to watch for, as the gain
figures will be overstated.

73 de Billy, AA4NI

Sent from my iPhone

On Jun 17, 2012, at 1:03 PM, W0MU Mike Fatchett <w0mu at w0mu.com> wrote:

> I believe there was some mention that the program did not handle low 
> stacks accurately.
> 
> Mike W0MU
> 
> W0MU-1 CC Cluster w0mu.net:23 or w0mu-1.dnsdynamic.com
> Http://www.w0mu.com
> 
> 
> On 6/16/2012 8:13 PM, Rick Kiessig wrote:
>> Speaking of HFTA, does anyone happen to know how the algorithm works that
>> the app uses to calculate gain for antenna stacks? I've compared some
>> results over flat terrain with EZNEC, and they don't match up very well,
>> particularly for antennas at a low height. Makes me wonder how useful the
>> HFTA results are in that scenario.
>> 
>> 
>> 
>> 73, Rick ZL2HAM
>> 
>> 
>> 
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