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#11
December 19th 06, 03:31 PM
posted to rec.radio.amateur.antenna
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Rain Static ?
art wrote:
Tom, May I ask you to consider this? When a water droplet is formed it is a liquid inside a closed surface. As the droplet falls it gatheres excess energy/ electrical charges via friction . Since the the droplet is a closed circuit it is in equilibrium and any additional charges or excess charges therefore by law must be attached to the surface of the closed surface. When the droplet impacts on anything the closed surface opens and equilibtium is broken thus releasing the excess charges in the same way a plate capacitor arcs when equilibrium is broken. I have not read up on static but the electrical laws that support the above could adequatly describe static noise from rain. Now getting to snow static I suppose you would have to go a different way.. Art f. Tom Donaly wrote: J. Mc Laughlin wrote: ... and so we come full circle. One either believes in p-noise or one does not. It would be unreasonable for someone who has antennas in an urban environment and some other environments to believe p-noise exists because they will not experience p-noise. If one were to live where it never rains (or it never snows), one would be disinclined to believe rain (or snow) exists. Many years ago (no, I am sure I have not told this story before) I was asked by a colleague who lived in a country south of Miami to tell him about snow. Well, I said, it is a bit like granisado (flavored, shaved ice) without the flavoring (do not eat the yellow snow) and heaped up everywhere. He was too polite to indicate his disbelief. So, what is your religion? Warm and fond regards, Mac N8TT -- J. Mc Laughlin; Michigan U.S.A. Home: "Tom Donaly" wrote in message news:Zvzgh.28685 Denny wrote: It simply was low static until the moment the first gust of wind swept across our fields bringing the rain, and huge precip charges on the 130 foot high antennas... Sounds like you might believe that precipitation static exists. :-) Faith is a powerful force for self-delusion. 73, Tom Donaly, KA6RUH It never snows around here, but no one disbelieves in snow, Mac. Cecil's idea of the nature of precipitation static is pretty much based on what he's made up in his head, and not on measurement and experimentation. Moreover, he puts words in the mouths of people who disagree with him, such as the above: if you disagree with him he'll say you don't _believe_ in p-static, as if it were part of some ham religion. Actually, it's Cecil's ratiocinations that aren't worth "believing in." Anyone, even you, can investigate the phenomenon of p-static with some simple homemade equipment, as I referenced in an earlier post. Then you can decide for yourself how likely it is that Cecil's ideas have merit or not. 73, Tom Donaly, KA6RUH It's a theory, Art. Now you have to support it experimentally. Make, or buy, the equipment to do the measurements, design some experiments, do them, and see where it all leads. 73, Tom Donaly, KA6RUH |
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