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On 9 Nov, 15:12, (Richard Harrison) wrote:
Art wrote: "Most hams who strive for maximum radiation that is horizontally polarized place the radiator parallel to the earth`s surface." Reflection from the ionosphere nakes unpredictable changes in polarization. Nevertheless, the angle of arrival equals the angle of reflection at the ionosphere. Experience shows best results on a transmission path happen when the antennas at both ends of the path are complimentary. See E.A. Laport, "Radio Antenna Engineering" page 215, "High Frequency Antennas". Best regards, Richard Harrison, KB5WZI I have no problem with what you state when dealing with skip, But not all antennas use the skip phenomina such as satellite antennas,MRO antennas or those used for weather conditions and wind shear nd ofcourse any helical design antenna .. What I was pointing out that if one was looking for maximum gain of a specific structure then the tipping angle comes into play. If you are looking for "max gain" without reference to what type of structure of polarization then yes, go ahead and do the standard axis parallel to the ground method if you wish. I believe that most radio hams recognise that a vertical polarised antenna is not the best type to use when commnicating over ground with horizontally polarised antennas and I suspect that even CBers are aware of that to. Art |
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