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![]() "Cecil Moore" wrote in message . net... Al Lorona wrote: I have read many times here about how noise is generated when wind strikes an antenna made of bare conductors. Does the same effect occur on a mobile antenna? If you are talking about precipitation static, defined at: http://www.atis.org/tg2k/_precipitation_static.html the problem is severe and well-documented for airplane antennas and therefore would exist for mobile antennas. But air alone passing over an antenna is not sufficient to produce the effect. For precipitation static to occur, the air must contain precipitation in the form of charged particles of dust, snow, rain, etc. -- 73, Cecil http://www.w5dxp.com Navy receive whip antennas are all fitted with a "static drain resistor" (50 k-ohm, I think) in a connection box at the base. We had to disconnect the resistor to megger the element during inspections. Evidently, precipitation static could and would build up to a hazardous DC potential. |
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