[PVRCNC] antenna leaves me scratching my head :: comments?

[Guy Olinger K2AV]

You can't fool around with ground and radials, like you can't fool around
with mother nature.  The vertical pole is only about 1/3 of a vertical
antenna, if that much.

You are driving power into the radial/ground system.  It must be designed
and accounted for.  It will move the resonance of the system around just
like the vertical part.  It's NOT a neutral with no effects.

In EZNEC, perhaps by default, you gave it a SPECIFIC ground and radial
configuration.  Did you use one radial and ground rods in EZNEC?

73, Guy.

On Wed, Feb 15, 2012 at 7:51 PM, Joseph Mack NA3T <jmack at wm7d.net> wrote:

> On Wed, 15 Feb 2012, Steve Jackson wrote:
>
> > I modeled this antenna in EZNEC.  (Wasn't hard.)  Predictably, with a 37
> > ohm feed, on paper the whole enchilada rings at 7.125 MHz.
>
> did you model it with 1 radial?
>
> Joe NA3T
>
> --
> Joseph Mack NA3T EME(B,D), FM05lw North Carolina
> jmack (at) wm7d (dot) net - azimuthal equidistant map
> generator at http://www.wm7d.net/azproj.shtml
> Homepage http://www.austintek.com/ It's GNU/Linux!
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