Crosscurrents from KALW News

MARTIN: That means 91.7 million cycles per second, so million up and down of the electric field per second, or the electron moving up and down the antenna. So, you have got an antenna sending a signal ? that s called broadcasting ? and on the other end,...

http://kalwnews.org/audio/2011/07/21/if-you-can-hear-me-now-you-might-be-trouble_1104464.html



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