Re: Antenna wire gauge, etc
Posted by
Geoffrey Mackenzie-Kennedy-2 on
Aug 12, 2006; 10:09am
URL: http://elecraft.85.s1.nabble.com/Antenna-wire-gauge-etc-tp392921p392922.html
Ken Kopp K0PP wrote:
> A couple of things to keep in mind ... RF flows on/near the surface of a
> conductor, and the correct
> length of an antenna made from insulated wire will
> be slightly different than the formula-calculated length.
-------------------------------------------------------------
FWIW a horizontal dipole using plastic covered Flexweave cut to the
formula-calculated length is roughly 2-1/2 % too long at 40m and 3 % too
long at 6m when in the clear and a half wavelength or more above ground. It
needs to be shortened if it has to be resonant at the working frequency.
73,
Geoff
GM4ESD
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