[TowerTalk] 2-el 15/20 meter duobander

[john at kk9a.com]

Can it optimize for a specific impedance?  In other words can it design an
OWA?

John KK9A

-----Original Message-----
From: Stan Stockton [mailto:wa5rtg at gmail.com] 
Sent: Tuesday, November 28, 2017 9:36 PM
To: john at kk9a.com
Cc: towertalk at contesting.com
Subject: Re: [TowerTalk] 2-el 15/20 meter duobander

Anther reason to own AutoEZ.  It can design a duo bander for you in about
ten minutes.

Stan, K5GO

> On Nov 28, 2017, at 7:18 AM, "john at kk9a.com" <john at kk9a.com> wrote:
> 
> I played modeling 2el dual banders a long time ago and I recall having 
> success just putting the higher frequency Yagi in-between the elements 
> of the lower frequency Yagi. It is easy to model and see what happens. 
> Adding more elements and more bands really complicates things, kudos 
> to the designers of the excellent multiband interlaced beams.
> 
> John KK9A
> 
> 
> To:    towertalk at contesting.com
> Subject:    [TowerTalk] 2-el 15/20 meter duobander
> From:    Tom Osborne <w7why1 at gmail.com>
> Date:    Mon, 27 Nov 2017 12:58:40 -0800
> List-post:    <mailto:towertalk at contesting.com>
> Hi all
> 
> I have a HB 2-el 20 meter monobander on a 16 foot boom.  I would like 
> to add 15 meters to this antenna, but can't find any diagrams anywhere 
> for such an animal.  Googled it but no joy.
> 
> Does anyone know of a good setup for 20 and 15 on the same boom 
> without interaction to each other??  Thanks and 73 Tom W7WHY 
> __________
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