Towertalk
[Top] [All Lists]

Re: [TowerTalk] dumbing down

To: <towertalk@contesting.com>, "Jim Lux" <jimlux@earthlink.net>
Subject: Re: [TowerTalk] dumbing down
From: "Tom Rauch" <w8ji@contesting.com>
Reply-to: Tom Rauch <w8ji@contesting.com>
Date: Fri, 22 Jul 2005 23:51:49 -0400
List-post: <mailto:towertalk@contesting.com>
> >August QST, page 35, has a very well written four page
> >antenna construction article. It unfortunately has a very
> >simple basic point wrong. The authors based the
construction
> >on the incorrect assumption a small horizontal loop
antenna
> >radiates a vertically polarized omni-directional signal.
Of
> >course it doesn't have vertical polarization. It radiates
an
> >omni-directional horizontally polarized signal!
>
> I think that that specific example is more a case of poor
editing.  I read
> it as meaning that the radiation pattern (ignoring
polarization) of the
> loop is basically the same as a dipole (i.e. that
symmetric
> donut).

They very clearly claim the radiation is the **same** as
from a vertical dipole in the third paragraph, not the
"pattern". They repeat that error in "how it works".

That is incorrect. A horizontal loop has an  omnidirectional
*horizontally polarized pattern*. It is similar to a
vertical dipole but with electric and magnetic fields being
interchanged.

_______________________________________________

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.

_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk

<Prev in Thread] Current Thread [Next in Thread>