Hi John,
You can check out these web-sites:
http://www.w8ji.com/rhombic_antennas.htm
http://www.vk5sw.com/Vee%20Beam.htm
In my case it will be ultra simple.
I will pull a line up into a tall tree for the center feed-point.
I use home-made center pieces made out of sturdy plexi-glass.
I'll feed it with ladder-line coming down to the ground, probably 45-50
feet.
I'll attach the ladder-line to a homemade L-network on the ground, and a
long stretch of RG-213 to the house.
Mine will be favoring west/east, so I'll walk west 219 feet from the
feed-point and put a marker there.
Then measure 90 feet north (perpendicular) to establish the northern leg
end-point.
And measure 90 feet south (perpendicular) to establish the southern leg
end-point.
So the two outer legs will be 180' apart.
Throw up ropes over trees to get both legs up as high as I can get them.
Preset the L-network to the cw portion of 40m.
Fingers crossed it performs as EZNEC indicates.
Fun stuff!! :-]
Duane
On Tue, Sep 15, 2015, at 01:05 PM, John Litz, NZ6Q wrote:
> Where r plans for this would love to try in Merced for CQP
>
> John nz6q
>
> Sent from my iPhone
>
> > On Sep 15, 2015, at 3:33 PM, Mike Fahmie via NCCC <nccc@contesting.com>
> > wrote:
> >
> > I've used a 6 wavelength 20M V-beam @ 60' with a Johnson Matchbox on Field
> > Day a few times, it was a blast, owned the channel! Totally outperformed
> > the 3 element Yagi.
> > From California, I pointed it toward the center of the Eastern Seaboard.
> > -Mike-
> > WA6ZTY
> > From: dw <bw_dw@fastmail.fm>
> > To: "towertalk@contesting.com" <towertalk@contesting.com>
> > Sent: Tuesday, September 15, 2015 12:26 PM
> > Subject: [TowerTalk] Has anyone every put up a V-beam?
> >
> > Hi all,
> > I think I have the space to do this, although the property is heavily
> > wooded with oak trees.
> > I've modeled a V-beam with 219 feet legs for 40 meters.
> > Eznec is showing a gain of about 10dbi.
> > I'm wondering if anyone in the group has experience with this type of
> > antenna?
> > If so, what did you think about it?
> > Tnx
> > N1BBR
> > --
> > Bw_dw@fastmail.net
> >
> >
> >
> >
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--
Bw_dw@fastmail.net
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