Published:2009/6/28 22:42:00 Author:May | From:SeekIC
Developed to measure direction and strength of atmospheric electromagnetic radiation(sferics)associated with severe weather conditions,for detection and tracking of tomadoes. Signals from crossed loop antennas feed deflection amplifier of CRO.Article covers problems involved and gives circuit for sense amplifier that resolves 180°ambiguity in oscilloscope pattern,-R W Fergus、A Ham Radio Severe Weather Warning Net,73 Magazine.Sept,1974、p 27-30、32、34-36、and 38-39
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