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Marconi was an Italian inventor who some say was the first person to ever send a radio signal.
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In 1906 Lee De Forest created an electonic amplifying vacuum tube to amplify the signals. (Though it was believed a Canadian inventor Reginald Fressenden came up with the idea)
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There are no communication lines running in the ocean, the radio gave marine industries a chance to communicate with land and notify them on things. Ex. Nobody would have known the Titanic sank until weeks later if there wasn't radio to communicate saying the ship was sinking.
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On November 9th the first commercial radio station KDKA was created
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Personal radio stations you can run out of your own home before the FRC.
this caused problems with advertising and getting in the way of major signals. -
Advertising began in radio stations so the radio station could make money.
WEAF aired the first advertisment/commercial for an apartment building that was 10 minutes long. -
Federal Radio Commision was something establish because Uncle Charlie's was too big that got in the way of advertisment for the station that had payed advertisment. This organized a liscense for a transmiter and assigned radio station frequencies. This led to FCC
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Call letters were assigned because you can't identify a station because of it's frequency because a few miles out that could be the same frequency but a different station.
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The golden era of radio due to it being the middle of the Great Depression. They used the radio as an escape from all the troubles there had been.
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Shows were often played on the radio like
Amos n Andy
Gunsmoke
The shadow -
Major Edwin Armstrong invented the FM transmitter which resulted in better quality sound, so music shifted over to the FM side while talk stayed on AM
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TV attracted advertisers so the radio shifted to music instead of shows to attract viewers
