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Re: Topband: Inverted "L" Radiation Resistance vs vertical height

To: "Joe Craig" <jcraig@mun.ca>, <k3hx@juno.com>
Subject: Re: Topband: Inverted "L" Radiation Resistance vs vertical height
From: "Tom Rauch" <w8ji@contesting.com>
Reply-to: Tom Rauch <w8ji@contesting.com>
Date: Thu, 14 Sep 2006 06:03:53 -0400
List-post: <mailto:topband@contesting.com>
> Rrad goes by the square of height for 'short' verticals so 
> you would
> see roughly a 40% increase by going to 60'.  The 
> difference in your
> signal would also depend on your ground loss and this 
> would be smaller
> for a poor ground.

Hi Joe,

The difference in signal would be larger for a poor ground, 
less for a good ground. If the ground was perfectand 
conductor resistances zero  radiation resistance would be 
unimportant. If the system is very lossy FS is proportional 
to radiation resistance if determined by a standard method.

73 Tom 


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