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italian inventor
sent and received first radio signal in 1895
was he the first or was it case of good PR -
in 1906, lee de forest, created the audio tube, a vacuum tube that amplified signals. it is widely believed that a canadian inventor, Reginald fessenden, actually came up with the idea, but fessenden didn't seem to make it into the history books for that invention.
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how did radio have an impact on the titanic ? answer: the operators were taking down personal messages, along with news and stock report with the passengers.
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1920
8XK, later renamed KDKA
Frank conrad
still around today broadcasting out of pittsburg, pennsylvania -
uncle charlie
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How does a radio station make money?
A: they make a profit from the ads they sell and comercial
in the 1922 WEAF aired a 10 minute 'commercial' or toll broadcast, for an apartment complex charging $50 -
uncle charlie was too popular
established FRC in 1927
-organize the licensing of transmitters
-assigning radio station frequencies, call letters, and power limits -
Amplitude modulation
535 KHz - 1605 KHz -
Frequency Modulation
88-108 MHz -
Amos n andy
gunsmoke
the shadow
our miss brook
superman
dick tracey
little orphan annie
$64 dollar question -
W is east of the mississippi river
K is west of the mississippi river
why assign call letters?
A: call letter are used by television stations to identify themselves to the TV audience.
what about WBAP and WFAA
A: they different statin from what side they are from
