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italian inventor marconi was the first to send and receired radio signals and case good pr.
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marconi's radio
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lee de forest, created(borrowed) the idea for the audion tube, a vacuum tube that amplified signals.
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vacuum tube
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8xk, later renamed kdka
still around today brodcasting from pittsbarg.
by frank conrad -
in 1922 weaf aired a 10 minute commereial broadcast, for a apartment complex charging
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organize the licensing of ttransmitters, assigning radio station frequencies, cell letters, and power limits
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in the middle of the grat depression the radio provide graet entertainment.
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the entire family can enjoy it together
music
story
situalional
comedies -
tv makes appearance in the late 30s
advertisers went to tv
radio lost money, -
what can save radio?
music!!!
there were
jukeboxes
records
and live concerts -
edwin armstrong invented the FM transmitter, which made for a stronger signal and higher sound pepole had to buy new radio sets.
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FM transmitter
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sppotify
pandora
youtube
last,fm
slrlus
