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Marconi is believed to have sent and recieved the first radio signal.
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Lee De Forest is known for creating the audion tube, a device that amplifies signals.
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Frank Conrad founded the news broadcasting station 8xk that later became known as KDKA.
It was the world's first commercial radio station. -
In 1922 WEAF was the first station to aire a 10 minute commercial for an apartment complex.
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In 1927 The Federal Communications Commision was established.
This organization was responsible for oganizing the licensing of transmitters, and assigning call letters and power limits. -
W is used for anywhere east of the Mississipp River.
K is used for anywhere west of the Mississippi River. -
Amplitude modualtion waves range from 535 khz-1605khz
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Frequenc Modulations range from 88-108 mhz
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There were very few options to hear recorded music in the 1930's so radio broadcast stations began playing music.
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The Golden era was in the middle of the Great Depression when people were desperate for money.
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The radio brought families together by airing music, comedies, and dramas.
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Upon the invention of the television radio began to lose popularity.
