Because with vertically polarized antennas the very low elevation angles are
present only when the ground (that one extending for wavelenghts from the
antenna, not the radial system) is very good or nearly perfect as salt water
is.
As a matter of facts, GP with very low elevations properties are reported as
the most useful ones on most conditions, even on 160m.
73,
Mauri I4JMY
----- Original Message -----
From: "Al Williams" <alwilliams@olywa.net>
To: <towertalk@contesting.com>
Sent: Monday, January 08, 2001 10:22 PM
Subject: Re: [TowerTalk] Radials over salt water?
> Can Towertalkers explain why antennas over salt water is such an
> improvement?
>
> It seems to me that if all of the RF directed downward is reflected
upward,
> by the salt water, that is only a 3db improvement in the RF being directed
> upward!
>
> What else is happening?
>
> k7puc
>
>
> ----- Original Message -----
> From: "Logan Dietz" <cdietz@swbell.net>
> To: <K3BU@aol.com>
> Cc: <towertalk@contesting.com>
> Sent: Monday, January 08, 2001 12:16 PM
> Subject: Re: [TowerTalk] Radials over salt water?
>
>
> > I used to have a station on a 1 ac point of land in salt water. I shunt
> fed a
> > 130 foot tower with some beams on it. I took the radials to the salt
> water and
> > terminated them to old aluminum from destroyed beams which I pushed down
> into
> > the salt water. About 16 radials worked unbelievably well on 160! I
also
> tried
> > a ground plane for 80 on a 40 foot tower, with two radials...that also
> worked
> > very well. Almost anything will work well on 160 if it is near salt
> water.
> >
> > Chuck, W5PR
> >
> > K3BU@aol.com wrote:
> >
> > > Talking about radials.
> > > Has anyone done some real life tests and comparison between few
radials
> > > (2,4,8) and many (60, 120) when over salt water or marsh (or soaked
> salty
> > > beach)?
> > > The point of question is: does the salt water ground (close to
perfect)
> > > reduce the losses in return currents to the point where few radials
are
> > > sufficient?
> >
> >
> > --
> > FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> > Submissions: towertalk@contesting.com
> > Administrative requests: towertalk-REQUEST@contesting.com
> > Problems: owner-towertalk@contesting.com
> >
> >
>
>
> --
> FAQ on WWW: http://www.contesting.com/FAQ/towertalk
> Submissions: towertalk@contesting.com
> Administrative requests: towertalk-REQUEST@contesting.com
> Problems: owner-towertalk@contesting.com
>
--
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