Now that I provided the succinct answer, allow me to provide an in-depth answer.
But rather than me doing it, I will take the easy way out and simply provide a
link to the fine explanation done by Tom, W8JI:
https://www.w8ji.com/radiation_resistance.htm
Wes N7WS
On 3/1/2017 7:27 AM, Wes Stewart wrote:
No truth at all.
On 3/1/2017 6:25 AM, Charlie T, K3ICH wrote:
Is there any truth in the theory of making the vertical radiator out of
multiple wires such as ladder line and even adding a third wire woven through
the ladder sections and fed on one wire? The physical result is three
parallel wires but electrically connected so as to form and "up, down and up
again" element. This supposedly raises the radiating element impedance
relative to the fixed ground loss resistance. The idea I'm told, is that
since the ground resistance (loss) is fixed at whatever it is but as the
actual radiating element impedance is raised, the antenna becomes more
efficient since the ground loss percentage of the overall feed point
impedance is lowered. This impedance change happens in much the same way as
a folded dipole feed is a higher impedance than a conventional dipole using a
single wires.
I saw this written up a few years ago as a means of increasing the overall
efficiency of an inverted L for either 160 of 80 M.
I had an "L" made of the smaller ladder line on 160 with only four ¼λ radials
on the ground that seemed to work fairly well. My plan was to install
elevated radials, but that would have been a LOT of wire around the yard.
Something broke on it after a year or so, and I never re-installed it.
73, Charlie k3ICH
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