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Ground Or Not To Ground Receiving Antenna In Storm ?
Roy Lewallen wrote:
I'm not an expert at this, but I'm quite sure that the only way you can get a mechanical wave to travel faster than sound is if the behavior of the air becomes nonlinear at some compression level. Carrier velocity is linear and must be taken into account. Relative to a measurement point at the center of the earth, sound waves traveling East in the surface atmosphere are moving faster than Mach 2. Do the carriers move during an explosion? -- 73, Cecil http://www.qsl.net/w5dxp |
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