Yep, the "inches" was a bit of a stretch but at my QTH (on edge of a steep
225' hill and with nearby 100' "lumpy" hills) by using the program to move the
tower location around -- toward/away from the edge or toward/away from the
hills did make appreciable differences in the outcome.
IIRC, HFTA even has a "move" feature to allow "relocation" of the tower
various distances along a chosen bearing -- very helpfull for a hillside or
dealing with nearby "lumps" .
I guess that the point is to try to ascertain your potential locations as
accurately as possible, especially around terrain that would positively or
negatively affect the gain figures.
Feet, yards, just do your best!
John, NA6L
-----Original Message-----
From: David Gilbert <xdavid@cis-broadband.com>
To: towertalk <towertalk@contesting.com>
Sent: Sat, Mar 3, 2012 7:18 pm
Subject: Re: [TowerTalk] Where to get HFTA Software
I think that may be a bit of an exaggeration, especially since as others
have pointed out here you're not really certain where "ground" is anyway
... certainly not within inches and probably not within several feet in
many locations.
Dave AB7E
On 3/3/2012 7:48 PM, dotravel@aol.com wrote:
>
>
> Note that unless the site is on flat ground just entering the QTH location
would not be enough. For the data to be of value, the location of the tower
needs to be within feet if not inches prior to importing into HFTA.
>
> Regards, John NA6L
>
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