Message-ID: <37973DCE.90C9B505@netins.net>
Date: Thu, 22 Jul 1999 08:50:38 -0700
From: "Doc Gruis" <donnatom@netins.net>
MIME-Version: 1.0
To: rsgb_lf_group@blacksheep.org
Subject: Re: LF: De-tuned antenna
References: <E117Eff-0003uI-00@mserv1b.u-net.net>
Content-Type: text/plain; charset=us-ascii; format=flowed
Content-Transfer-Encoding: 8bit
Precedence: bulk
Reply-To: rsgb_lf_group@blacksheep.org
Sender: <majordom@post.thorcom.com>

Thank you.  
	
	At the present all the U.S. allows is i watt input to a 50' antenna and
that 50' includes loading coil, and transmission line, and such.

	I have been partial to some off center or center loading, but, as has
been shown on this list, art and science are very close together.

	73,

Doc.
__________________________________________________________________________________

Mike Dennison wrote:
> 
> K0HTF wrote:
> >      I have a 1 watt beacon operating on 175 KHz. and will be putting up
> > a new antenna this autumn.  My efforts must be modest since our lot is a
> > rather conventional 50 X 150'.
> 
> This is not very modest by UK standards. My garden is 35 x 90'
> and I can still put up a useful antenna for 136kHz. It requires some
> ingenuity - I am using a loading coil at the top of the mast, for
> instance - but I am not the only G to put out an LF signal from a
> small garden. The real secret is height - if you get to 50 feet plus it
> will work well.
> 
> Mike, G3XDV (IO91VT)
> http://www.dennison.demon.co.uk/activity.htm