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Marconi sent 1st radio signal
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Lee De Forest created (borrowed) a signal amblifier.
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First called 8XK, later renamed KDKA. Still around today.
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WEAF aired a 10 minute commercial for an apartment charging $50
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The Federal Radio Commision,(FRC), organized transmitters, limited power, and assigned stations
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It happened durring the great depression. Made people forget about wars and the depression.
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In the late 30's, TV became more popular than radio.
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The plan was to add music to radio. It made people like radio more than tv.
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FM,Frequency Modulation, radio produced stronger signal than AM. It made music to have more quality than AM radio.