[TowerTalk] HFTA question

[Pete Smith]

You're certainly right about the minimum number of wavelengths.  You can 
manually construct a .pro file for HFTA, enter the dimensions that 
you're seeing, and find out.

73, Pete N4ZR
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On 1/20/2010 7:15 PM, David J. Sourdis - HK1A wrote:
> There's a hill that is about 27 meters (90 ft) above the flat surrounding terrain. Caribbean sea shore is less than two kilometers from this hill.
>
> I guess there is a minimum distance of wavelenghts of sloping terrain required to take
> advantage of such topography regarding antenna take-off angles and HFTA.
>
> In the desired azimuths for contesting, the slopes range (tricky eye guessing) between 25 and 45 degrees (46% to 100% slope) referenced to the horizontal.
>
> I wonder if it is worth to do some surveying for terrain profiling on said hill for HFTA analysis or should I just don't bother because the hill's height is not enough and/or its slope to the flat terrain is too short.
>
>
> 73
>
> David
> HK1A
> EC5KXA
>
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