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In article . net,
chuck wrote: Thanks for the comments, Roger. While I don't disagree with what you have said (except that antennae are magic), I don't believe your remarks touch on the issues here. The typical marine VHF antenna, for example, does not depend upon the sea for its operation. I am assuming the usual quarter-wave ground plane vertical atop a mast. Do you believe that because VHF and HF antennas involve different frequencies the underlying theory is different? A backstay "vertical" antenna may or may not depend on the sea for its return path. Me has unequivocally asserted that it always depends on the sea and thus its ground must be coupled to the sea. (400 sq. ft. of copper is no better than nothing at all he believes) Conventional antenna theory suggests that a backstay "vertical" could utilize a counterpoise or other return path element (like a horizontal dipole half) with no coupling to the sea at all. Me asserts this is false: that such an antenna will not work. I attempted to present a "reductio ad absurdum" argument showing that if Me is correct, his reasoning leads to absurd results. There is no magic here. I would be pleased to reconsider any of my comments if they appear incorrect or incomprehensible. Regards, Chuck Best you go back to Elementary Physics, and relearn everything that you didn't get the first time, on Antenna Theory, Frquency vs Impedance, and Smith Charting of basic Marconi Style Antennas..... Me |
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