[TowerTalk] Tri-bander question

[Guy Olinger, K2AV]

No, it won't.  Model it and you will see why.  The twenty meter elements
are coupled when operating the ten meter beam.  You get very interesting
10 meter current distributions and related detunings on the twenty meter
elements.

F12 puts the 10 meter section in front the twenty in the C3

The C31XR and C19XR have intermixed elements, but the design is very
complex and took him years to complete.

-----------------

Guy Olinger
Apex, NC, USA

----- Original Message -----
From: "Tom Osborne" <w7why@harborside.com>
To: "TowerTalk" <towertalk@contesting.com>
Sent: Sunday, August 19, 2001 7:32 PM
Subject: [TowerTalk] Tri-bander question


>
>
> HI All
>
> I'm re-designing the antenna for the season.  I have 2 element 20
> and 2 element 10 meter monoband yagis.  In looking at the C-3S,
> the elements are all intertwined.  Three driven elements and 3
> parasitic elements.  Would it be possible to just lay the 10
> meter beam on the 20 meter beam?  Wouldn't that be essentially
> doing the same thing??  I'd just put it on the mast right on top
> of the 20. I have them both on a 1/4 wave boom with split dipoles
> and no matching network needed.  73
> Tom W7WHY
>
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List Sponsored by AN Wireless:  AN Wireless handles Rohn tower systems,
Trylon Titan towers, coax, hardline and more. Also check out our self
supporting towers up to 96 feet for under $1500!!  http://www.anwireless.com

-----
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