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Re: [TowerTalk] Vert. 1/2 wave dipole vs Hori. 1/2 wave dipole?

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Vert. 1/2 wave dipole vs Hori. 1/2 wave dipole?
From: "Rob Atkinson" <ranchorobbo@gmail.com>
Date: Sat, 14 Jun 2008 23:24:04 -0500
List-post: <towertalk@contesting.com">mailto:towertalk@contesting.com>
<<<A 1/4 wave 80m vertical series fed on 40m is nothing else then a halve wave
vertical on 40m which was questioned about.>>>

No, the question had to do with one half wave length DIPOLEs,
vertically and horizontally polarized.   They may be symmetric or
asymmetric but a DIpole has two poles right?  a conductor fed at the
end (base fed vertically polarized in this case) that is 1/2 wave
length against a ground screen is not a DIpole, but it IS 180 degrees
long (tall) for some frequency.

<<<A vertical dipol can be fed at one end, center feed is no must.>>>
Center feed is not necessary; feed point can be off-center, but it's
NOT a DIPOLE if fed at one end; what you have is a MONOpole which is
not what the question was about.

<<<Radials are useful below ALL kinds of vertical antennas anyway.>>>

Especially on sand. :  )

73

rob / k5uj
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