Towertalk
[Top] [All Lists]

Re: [TowerTalk] Ground mounting vs roof mounting verticals

To: "towertalk@contesting.com" <towertalk@contesting.com>
Subject: Re: [TowerTalk] Ground mounting vs roof mounting verticals
From: "Jim Brown" <jim@audiosystemsgroup.com>
Date: Thu, 22 Oct 2009 11:15:14 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
On Thu, 22 Oct 2009 09:18:26 -0700 (PDT), John Geiger wrote:

>For a roof mounted vertical, would 4 quarter wavelength radials for
>each band be sufficient?

Yes. In general, four per band is plenty if the feedpoint is at 
least 1/8 wavelength above the earth. As you get closer than that, 
radials begin to couple to the earth and the earth currents burn TX 
power.

73,

Jim K9YC



_______________________________________________



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

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