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Art wrote:
"------in conjunction with my beliefs which shows radiators as not being parallel with the surface of the Earth where others refused to check in any way." I`ve erected countless horizontal antennas. They worked as expected. I agree that the ionosphere scrambles polarizations so that a distant signal may have been launched from either a horizontal or vertical antenna and be received almost as well on an antenna of the other of those polarizations. Line of sight propagation is different. The same polarization is needed for linearly polarized antennas at both ends of a path. This is experience, not opinion. I`ve experimented with polarization and optimized countless terestrial microwave paths. I found I could aim dish elevations with a carpenter`s level and never improve by trying to adjust for maximum limiter current by refining the polarization adjustment. The antennas were already parallel at both ends of the path. Tending to cross-polarize line of sight antennas increases path loss. Best regards, Richard Harrison, KB5WZI |
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