>From: Doug Brandon <firstname.lastname@example.org>
>Subject: [TowerTalk] Vertical vs. Low Beam?
>Date: Fri, 21 Mar 1997 10:07:20 -0800 (PST)
>X-Sponsor: N4VJ / K4AAA, KM3T, N5KO & AD1C
>I've been using a roof mounted HF6V vertical (at about 16') for the
>past 5 years with reasonable results. I'm currently looking into putting
>up a tower, but in the meantime I'm curious if a roof mounted beam
>(say a Force C3/C4 or Cushcraft A4) at around 20' - 25' would do any
>better than the vertical.
>I know the rule of thumb with beams is "higher is better", but what is
>the minimum height at which I can expect reasonable results? or at
>least better results than the vertical?
> 73 de Doug, N6RT
Dont think of antenna height but instead think wavelengths. Dig in to the
ARRL Antenna Manual and find the table with the elevation patterns of a
horizontal dipole as a function of wavelengths. Add to that the gain of
the yagi and you will see it's all a function of wavelength.
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