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On Sep 8, 11:00*am, Richard Fry wrote:
In the case of a single monopole mounted with its base at earth level, adding tilt to it makes very little difference in its gain at elevation angles up to +60 degrees or so, at any azimuth. *It does partially fill the elevation null at the zenith produced by the vertical monopole, as well as to produce a small amount of h-pol radiation over most of the compass. Modeling this in NEC for a 1 MHz, 1/4-wave, straight monopole by moving its top 10 meters out of plumb changed its peak gain by about 0.01 dB compared to the untilted version, at any azimuth. RF Gain has never been as issue in tipping the radiator except for some who which to interject it. Pointing's vector shows a radiation patterm that is spherical and in a state of equilibrium It is not the radiation pattern of a donut which all are familiar with. Thus if one wants coverage in all directions one must pursue an array or conductor in equilibrium. The present state of the art only considers gravity as being outside the arbitrary border such that the equal and opposite vecter is exactly that. ie at right angles to the Earth's surface. Now we all know that the radiation pattern of such does not remotely resemble that of Pointings vector! To get to the point of a spherical radiation pattern one must recognize that there is an additional vector outside the boundary that one must consider to obtain equilibrium. So far you have shown progress by tipping the radiator where it started to fill the void at the center of the donut. This alone confirms the idea that another vector has to be considered outside the arbitrary border. Now rotation is an essential property of the Universe as fracture of an arbitrary boundary is created by two forces which are not on a common plane. This is a shear force which also creates torque or spin ,so it stands to reason that the other force in combination with gravity is a force of torque or rotation. If Coriolis is not that vector what other characteristic fits the bill? |
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