David,
It was actually part of the side-bar discussion presently running under "EZNEC
Needs Improvement."
Paul, W9AC
----- Original Message -----
From: David Gilbert
To: Paul Christensen
Cc: TowerTalk
Sent: Monday, April 06, 2009 12:58 PM
Subject: Re: [TowerTalk] Vertical vs Yagi
Sorry ... I missed that. I even searched through the archives to check, but
apparently I overlooked Bill's post.
73,
Dave AB7E
Paul Christensen wrote:
and I'm really surprised that nobody so far has referenced the
gyro-frequency effect espoused by propagation expert NM7M and others.
David,
Bill, W4ZV referenced this effect early in the discussion:
"This problem has to do with something called magnetic coupling
(or polarization) loss. This primarily affects 160m which is closest to
the gyro-electron frequency which varies from about 0.7-1.7 MHz worldwide
depending on the intensity of the magnetic field)."
Paul, W9AC
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