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Re: [TowerTalk] 6 meter antennas ?

To: Michael Baker <k7ddmjb@qwest.net>
Subject: Re: [TowerTalk] 6 meter antennas ?
From: Jack/W6NF <vhfplus@bmg50.com>
Date: Sun, 22 Jun 2008 05:56:08 -0700
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Michael Baker wrote:
> Just to add a bit of interest in something I observed many years ago and
> have modeled for future use at home.
>
> When I lived in Denver in the 70's a fellow had a tower with a quad stack of
> loops on each leg for 6,2 and 432 as well as a pair stacked for 10 that he
> used as monitor antennas and for local BS.
>
> If you have EZNEC build some and look at them starting at say 1 wave high
> and you will be impressed.
>
> My future plans will mimic the fellow in Denver but the tower will be a
> crank up so they will have to be on each section or at the top on a mast.
>   
Just like the antenna systems used at FM broadcast stations...figure 
roughly 2.5 db gain every time you double the size of the array. If you 
start with 2db gain (maybe a smidge low) then 4 loops would be about 7db 
gain...not too shabby *and* it's omni-directional!

73,

Jack, W6NF

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