[TowerTalk] OWA Yagi Antenna

[Bob Maser]

Do a Google search on NW3Z.  He has designed some monoband and dual band OWA 
yagis.  I am planning on putting up his 20M OWA which is 6 elements on a 48 
foot boom.  I used his element spacing and then optimized the yagi with YO 
6.5 keeping the spacings fixed.  It looks like it is going to be a really 
good playing 20M antenna.  BTW, he places the first director .06 wavelength 
in front of the driven element.

Bob  W6TR
----- Original Message ----- 
From: "Garry" <g.drummond at verizon.net>
To: <towertalk at contesting.com>
Sent: Friday, May 02, 2008 2:55 PM
Subject: [TowerTalk] OWA Yagi Antenna


>I am interested in building an OWA yagi. Do I understand it's
> construction correctly where you would take a 4-element beam for
> example, modeled by any of the modeling programs in common use, then
> move the first director to within .05 wavelength of the driven element
> leaving the 2nd director where it was originally placed? Also, does this
> require any change in element length for the first director from it's
> original length? Does this work for a 3-element beam as well?
>
> Any help will be appreciated.
>
> Thanks,
> Garry - WR4R
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