[TowerTalk] Take off angles, VOACAP, etcf.

[Bill Aycock]

Is my intuitive logic wrong? It seems to me that the antenna has nothing to 
do with the characteristics of the ionosphere; it only controls ones 
ability to accept and use the signals that are there.
Bill

At 08:48 PM 10/16/2004 -0700, Jim Lux wrote:

>I've been giving some thought to the VOACAP amateur radio thing..
>
>If you run VOACAP, it displays the dominant path (and it's takeoff angle,
>which is presumably what N6BV used in building the statistical tables).
>However, I wonder what antenna was used. If it was an isotrope, all paths
>would be weighted evenly in the selection, which will tend to favor the low
>angle one hop path, as opposed to the high angle two hop path.
>
>If you give VOACAP a realistic pattern typical of most ham antennas, which
>have terrible gain below a few or 10 degrees, that might favor the high
>angle two hop path, which would account for Guy's comments.
>
>Hmm..
>
>
>
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Bill Aycock - W4BSG
Woodville, Alabama