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On 7 Jan, 19:23, (Richard Harrison) wrote:
Art wrote: "I wonder why you are checking things out, as an engineer you should be aware of facts already." A fact is a reality. An opinion lacking credible testimony is not a proven fact. Wave tilt is a known phenomenon. A wave traveling along the surface of the earth is slightly slowed by the earth, so it seems to tilt slightly in its direction of travel, like "dragging its feet". A wave reflected by grazing a surface has an angle of reflection equal to its angle of incidence. An incoming wave reflected by the ionosphere has a tilt with respect to the horizontal. A Beverage antenna can be as simple as a wire supported at low altitude above the earth, and a seeming paradox is that although horizontal, the wire is sensitive to vertically polarized waves. Despite Art`s questioning that hams would know about wave tilt, an ARRL publication, ON4UN`s "Low-Band DXing", begins its chapter on Special Receiving Antennas with the Beverage. Most engineers in this newsgroup are well aware of the facts needed in their profession. One particular mechanical engineer is claiming new discoveries without sufficient supporting information. Best regards, Richard Harrison, KB5WZI I understand that a diamagnetic field is oriented differently to the norm Thus a diamagnetic field on a radiator is different to the norm. This I see as the lynch pin of radiation. Hams do not recognise what science has found for some reason. There is not a physics based ham on the group that will explain this type of field and it was not known by Terman so the dark ages persist. Also I claim no new discoveries. Every thing I have described is documented on Google which you do not have the ability to check out....Tough.You don't know how to use an antenna computor program so you can't see tilt for your self. You are in sad shape.If you can point to anything that I stated is NOT fact then speak up with the details and share with the group |
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