For short radials make them equal lengths and load using a single coil.
Dave WX7G
On Nov 16, 2011 10:49 AM, "Richard (Rick) Karlquist" <richard@karlquist.com>
wrote:
> On 11/15/2011 9:10 PM, Guy Olinger K2AV wrote:
>
> > field, either buried or elevated. Therefore, presuming that undense
> > irregular radials that would fit would be excessively lossy, per RBN
> > data previously gathered, the +33, -33 foot linear folded counterpoise
> > (FCP) is used instead, elevated at 8 feet. The folds in the
> > counterpoise are designed to self-cancel fields as much as possible,
> > thereby minimizing ground induction, which is loss to skywave. The 66
>
> > 73, Guy.e
>
> It seems to me that the folded counterpoise is equivalent to
> a couple of loaded short radials, except that "linear loading"
> is used instead of lumping loading coils.
> Thus the ground induction loss is not reduced by the folding. So this
> is just a non-traditional implementation of 2 short loaded elevated
> radials. Nothing wrong with that, if implemented carefully. The
> decrease in gain is probably within the margin of error of RBN.
>
> In the described small backyard situation, I would think that making
> radials out of plain wire and loading them with coils at the feedpoint
> would be more acceptable from the visual clutter viewpoint.
>
> Rick N6RK
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
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