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Old June 8th 06, 04:00 AM posted to rec.radio.amateur.antenna
Richard Clark
 
Posts: n/a
Default How to model linear loading in shortened dipole of vertical using EZNEC?

On Wed, 07 Jun 2006 13:25:44 -0400, "Steven R. Jones"
wrote:

In attempting
to model this design in EZNEC, I do not seem to get the loading effect and
shorter length of the radiators to achieve resonance, nor do I get the
feedpoint impedance lowering that is described for this sort of loading.


Hi Steve,

This may well be due to its inability to resonate as advertised. This
is not an infrequent complaint.

One compelling contradiction is seen in the description of the antenna
as being 60% of the conventional length; and the illustration of the
antenna built in thirds which would suggest it is 33% of conventional
length. Simple errors such as this lead to massive failures in
expectation.

This leads us to the observation that if you can erect a 1/6th
wavelength vertical, what do you stand to gain with this spaghetti
design that would put it ahead so much further?

73's
Richard Clark, KB7QHC