Topband: Inverted L improvements - Part 3 (now with data)

Guy Olinger K2AV k2av.guy at gmail.com
Tue Jan 22 15:30:13 EST 2019


Have to pay attention to everything he is reporting. He added a feedpoint
choke per K9YC at the same time. Which may, depending on the physical
connections at his feedpoint, have removed the feedline shield as an
alternate “radial” in parallel with the increasing but still not full size
radial system.

That indicates that his ground characteristics could be well into the
“poor” end of the range where ground radial deficiencies are multiplied and
emphasized.

His SWR bandwidth narrowed slightly. Leaving a strong possibility that
there was an improvement in desired radiated pattern.

There remains the question of every conductor in a 250 foot radius,
including a tower? There remains the question of large dielectric masses
close by.

73, Guy K2AV
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