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Re: [TowerTalk] Has anyone every put up a V-beam?

To: <towertalk@contesting.com>
Subject: Re: [TowerTalk] Has anyone every put up a V-beam?
From: "Ed Sawyer" <sawyered@earthlink.net>
Reply-to: sawyered@earthlink.net
Date: Tue, 15 Sep 2015 18:01:10 -0400
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
Yes, a number of them over the years.  They do have nice gain and are simple
in concept. 

 

However, a few points to remember:

 

-          The gain is VERY narrow.  A 4 wavelength long legs V Beam
probably has a 25 - 30 deg beamwidth and it VERY sharp on the drop offs and
side rejection is HUGE, so you will be loud to the target area but that's
it.

-          Its harder than it seems to align the legs over 300+ feet with
any kind of trees.

-          The impedance at the feed is complex.  Easiest to feed it with
open wire line and use a tuner at the rig.

-          The wire has to be high (like a yagi or dipole) in order to have
the gain at a good take off angle.  Doing that for 100s of feet x 2 legs can
be difficult.

 

But if the challenges are known and can be executed, it's a fun antenna.   A
STRONG player to the target area when done right.

 

Ed  N1UR

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