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" <[email protected]> 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 > _______________________________________________ UR RST IS ... ... ..9 QSB QSB - hw? BK
