Topband: Another non-traditional antenna working.

Rik van Riel riel at surriel.com
Wed Nov 16 12:22:35 PST 2011


On 11/16/2011 12:10 AM, Guy Olinger K2AV wrote:
>> We are testing N3ND's new 160 antenna tonight (Monday local time) 1818 @ 0005Z.  This is another antenna based on RBN validated untraditional design.
>> 73, Guy.

> This is an up 70, over 60, down 5 wire fed via a feedline isolation
> transformer against a 5/16 wave single wire folded counterpoise at 8
> feet.  No radials.
>
> There is no way his small lot property could support a dense radial
> 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

Is there more info available on this antenna?

Especially a diagram (or crude drawing) of how things are
done would be appreciated.

A NEC model would be fantastic, but I'd be more than happy
to prepare that from the crudest drawing anyone could send
me, and then make it available to everybody else :)

-- 
All rights reversed.


More information about the Topband mailing list