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Heinrich Hertz detects and produces radio waves.
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The Radio was sent and recevied signal in 1895
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First radio transmission of music at Graz, Austria.
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Lee De Forest created the audion tube made of a vacum tube
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first radio show 8XK renamed to KDKA
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WEAF aired a 10 commerical for an apartment complex and charged 50 dollars
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Uncle Charlie was getting very popular so the FRC organized licensing of transmitters
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W is to talk to East Mississippi River
K is to talk to West Mississippi River -
1927
Columbia Broadcasting System (CBS), a second national network, formed. -
Amplitude Modulation (AM)
535KHz-1605KHz
Frequency Modulation (FM)
88-108MHz -
The Golden era for radio was the 30s and 40s Middle of the great depression
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1939-1945
Radio broadcast journalism establishes itself as a significant national media force as it covers the daily events of World War II. -
1941: Oct.10: Columbia University's Radio Club opens the first regularly scheduled FM station.
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Teh radio was the time for families together as a family
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people started using jukeboxes,records