On 3/6/12 9:28 AM, David Gilbert wrote:
>
> I suspect it is quite significant for some locations. There are folks
> here in the west who live in long, rather deep almost V-shaped canyons
> and I'd bet that skews their actual results quite a bit.
>
> 73,
> Dave AB7E
>
then we'll wait for someone to write a free raytracing code for HF that
does 3D...<grin>
This is why I like to run HFTA (and similar programs) with several
different locations moving a bit. if you have the "narrow ridge or
valley that happens to parallel a radial" scenario, it shows up pretty
quickly.
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