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Re: [TowerTalk] Is there a point of diminishing returns on gain for stac

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Is there a point of diminishing returns on gain for stacking HF beams?
From: Steve Hunt <steve@karinya.net>
Date: Tue, 15 Jul 2008 11:20:12 +0100
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>

Roger (K8RI) wrote:
> You have to double the number of antennas for each "theoretical" 3 db 
> gain. It gets big and expensive fast and there are other factors that 
> limit you to less than the theoretical gain.
>   
Also, if you are talking about vertical stacking you can actually make 
things worse at low take-off angles, depending on how high you can get 
the lower antenna(s). Take a look at this analysis on my website:
http://www.karinya.net/g3txq/vertical_stacking/

73,
Steve G3TXQ

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