On Thu,3/17/2016 12:14 PM, jimlux wrote:
There's no big advantage to linear loading: you might as well use a
good low loss inductor at the feed (the "shorty 40" does this).
Are you certain about this, Jim? Both change the current distribution,
but linear loading changes it least at the center, where current is
greatest. The inductor places maximum current in the inductor, which
doesn't radiate. NEC doesn't model that very well, treating the inductor
as a lumped element, with no change in the current distribution across
it. NEC probably would model linear loading pretty well if the model
accurately described the antenna.
73, Jim K9YC
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