Thread: Tilted radiator
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Old September 14th 08, 07:05 PM posted to rec.radio.amateur.antenna
Frank[_5_] Frank[_5_] is offline
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First recorded activity by RadioBanter: Jun 2008
Posts: 38
Default Tilted radiator

It is noted that the tilted monopole has
a slight gain opposite to the direction of tilt.


Hi Frank,

The numbers hint of mixed polarization results which would come as no
surprise from tilting which tosses in a horizontal component that was
effectively suppressed by a true vertical.

The hint is the collapse of the overhead null, and the marginal
differences close to the horizon.

73's
Richard Clark, KB7QHC


Hi Richard,

There is some horizontal polarization. The peak
level is about 20 db below the vertically polarized signal.
Certainly sufficient to effect the overhead null.

Hi Art,

The program is Nittany Scientific's implementation of
NEC 4.1. I must confess I do not understand your
response. The weak nuclear force about 10^(-9) less
than the strong nuclear force, and its range is limited
to distances smaller than an atomic nucleus, so I
cannot see how it can effect the radiation characteristics
of an antenna. Are you saying you do not think my model
is valid? The results certainly indicate that tilting a
monopole by 15 degrees is pointless -- other than a
marginal improvement in high-angle performance in
one direction.

73,

Frank