In the limit, it would be like improving the conductivity of the ground
underneath the antenna to the point where it's over a perfectly conducting
surface. Whether this is good or bad kind of depends on the antenna. If
your horizontal dipole happened to be 1/4 wavelength above the ground,
you've just made a dandy directive antenna pointing straight up.
Hmmm. it might be that even though you'd probably tend to move the directive
pattern higher in the sky (assuming a lowish antenna), you might actually
come out ahead, because of the lower ground losses.
----- Original Message -----
From: "Nat Heatwole" <nat@ajheatwole.com>
To: <towertalk@contesting.com>
Sent: Friday, July 02, 2004 3:52 PM
Subject: [TowerTalk] Radials and Non-Vertical Antennas
> I've heard that it often helps the performance of slopers, "Cloud
> Warmer" dipoles, and low Yagis if one puts radials under the tower (or
> whatever they happen to be mounted on). Is this actually true, and if
> so, how much can this improve the performance of the antennas? Also, is
> there any "science" to putting down such radials, or is it basically
> just "lay them down somewhere"? And finally, should they be electrically
> connected to anything, or just physically strung around the tower?
_______________________________________________
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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