Topband: 160m T-loaded vertical antenna

Rick Karlquist richard at karlquist.com
Thu May 29 14:46:29 EDT 2008


k2kw-8 at adelphia.net wrote:
> Our installation was a 55' tall vertical with 4 top-hat loading wires
> (also 55' long), which came down at rather steep angles due to the limited

Modelling this configuration shows that beyond a certain length,
making the top hat wires longer is counterproductive.  The limit is roughly
where the tips of the wires are at half the height of the vertical.
It may seem good not to need a loading coil, but you are better off
using a loading coil instead of making the top hat come too close
to the ground.

Rick N6RK



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