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[Towertalk] Inverted L - Thanks for the Help.

To: <>
Subject: [Towertalk] Inverted L - Thanks for the Help.
From: (Guy Olinger, K2AV)
Date: Sun, 1 Sep 2002 14:44:09 -0400
Modeling shows a minor bulge away from the horizontal portion, both
used as a 1/4 wave and used as a 1/2 wave. But not enough to justify
how one orients it. Helpful circumstances for stringing it up should
rule. The DX will never know the difference.

Orientation is important if its use as a full wave is contemplated, as
the omnidirectional radiation from the vertical portion tends to be
cancelled out, behaving as if only the horizontal portion was in the

----- Original Message -----
From: <>
To: <>; <>
Sent: Saturday, August 31, 2002 8:02 AM
Subject: Re: [Towertalk] Inverted L - Thanks for the Help.

> Regarding placement of the 'tail' on an inverted L,
> I've have the 'feeling' that there is some cancellation
> in the direction of the tail.
> Consider a takeoff angle of 45 degrees, through the tail.
> Draw a 45 degree line that intersects both sections of
> the inverted L.  Note that the current in the horizontal
> section crosses the sloping line in the OPPOSITE
> direction from the current in the vertical section.
> To my mind, this creates a *partial cancellation* in
> the field intensity in that direction.  Correct?
> I assume the cancellation is partial since the
> current intensity is less in the tail than in the
> vertical portion.
> Regarding radials, just run them STRAIGHT out
> as far as you can go on your property.  I don't see
> any benefit in coiling or bending ground mounted
> radials.
> Tom   N4KG
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