That is a blanket statement that doesnt hold much water.
Belrose and others have published also and believe that 12' is adequate on
160 in many cases. BC band engineers have proven that an elevated system
delivers the same field strength OR BETTER than a classic 128 buried radials
at the same site. The FCC has required them to reduce power to that of the
original proof of performance.
A lot depends on the ground conductivity. With 32 radials 12' high I never
waited in pileups very long. My ground conductivity is about that of granite
since it is only a foot or so below ground.
Carl
KM1H
----- Original Message -----
From: "Jim Brown" <jim@audiosystemsgroup.com>
To: <towertalk@contesting.com>
Sent: Friday, October 19, 2007 12:54 AM
Subject: Re: [TowerTalk] Inverted L for 160 meters
> On Fri, 19 Oct 2007 03:58:33 +0000, VR2BrettGraham wrote:
>
>>Presumably this is with elevated radials?
>
> I don't see where what you've quoted has anything to do with whether
> the radials are elevated or not. And it is VERY tough to get radials
> high enough to have the advantage of elevated radials on 160M -- the
> literature says at least 1/8 wavelength above earth, which is 20M.
> Maybe at your QTH, but not at mine. :)
>
> 73,
>
> Jim K9YC
>
>
>
> _______________________________________________
>
>
>
> _______________________________________________
> TowerTalk mailing list
> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|