Yuri Blanarovich wrote:
I think there is a major misconception that verticals are more sensitive to
noise because the noise is "vertically polarized". Man made, appliance or
otherwise produced noise is "all kinds" polarized. It is the antenna's location
and radiation pattern that determines the amount of noise or S/N pick up.

I'm just reporting what conditions exist at my QTH. There is approximately
two S-units higher noise on the vertical than on the horizontal. After weeks
of A/B comparisons, there was never a time or signal where the vertical appreciably
beat the horizontal. There were a few times when they were nearly equal. Two extra
S-units of noise is hard to overcome. I really wish the outcome had been different.
--
73, Cecil http://www.qsl.net/w5dxp



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Cecil, W5DXP wrote:
"I`m just reporting conditions at my QTH."

Every installation is unique, but horizontal power lines are often long
in terms of h-f waves. At a distance, one receives radiation from the
wires which tends to make a zero sum. This happens even though the h-f
is likely common-mode on the wires.

Every power pole is supposed to be grounded. Radiation induced and other
spurious currents in the power lines drains to the earth through this
multitude of earth connections. Though the phase of these currents to
earth varies in the various ground wires, you are often closer to one
than the others. Radiation phase from that particular ground wire is
usually not a jumble at a given frequency due to limited height of the
pole. Your proximity to one pole often derives from being served with
electricity from that pole.

As horizontally polarized signals don`t propagate via ground wave and
suffer extreme attenuation due to cross-polarization when sweeping
vertical wires, inducing little energy in them, and due to vertically
polarized radiation from vertical wires on power poles, vertically
polarized radiation is all you get from the poles.

For an Idea of r-f currents in the ground wire on a power pole, explore
close to the pole the signals it radiates with a transistor battery
operated portable radio. They can be intense.

Best regards, Richard Harrison, KB5WZI