Re: [TowerTalk] Take off angles, VOACAP, etcf.

[Bill Aycock <baycock@direcway.com>]

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..
>
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless 
> Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with 
> any questions and ask for Sherman, W2FLA.
>
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Bill Aycock - W4BSG
Woodville, Alabama 


_______________________________________________

See: http://www.mscomputer.com  for "Self Supporting Towers", "Wireless Weather Stations", and lot's more.  Call Toll Free, 1-800-333-9041 with any questions and ask for Sherman, W2FLA.

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