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in 1906, Lee de Forest, created (or ''borrowed'' the idea for) the audition tube. A vaccum tube that amplified signals. It's believed that a canadian inventor, Reginald Fessedan actually came up with the idea.
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Was a italian inventor who made the first radio signal in 1895. He was really interested in eletrical science. In 1895 he began his laboratory experiment on his father estate.
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If it wasnt for the radio then everyone would have died. A californian contact the Titanic about that they were surrounded by iceberg. On the night when the Titanic sank wireless operator send distress signals to the most advanced radios.
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Davis authorized Westinghouse to set up radio station KDKA. On November 2, 1920, it becamed the first commercial radio station. It's still around today broadcasting out of Pittsburg, Pennslyvania
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Radio makes money off of advertising. In 1922, WEAF aired a 10 minute commercial for an apartment complex charge up to $50.
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People were paying Uncle Charlie to get their Advertisment out there but other people were interfering with his station so some people were mad about this. In 1927 the FRC came along. It organize the licensing of transmitter and also assigning radio station frequencies, call letters, and power limits.
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It stands for Amplitude modulation. 535 KHz to 1605KHz
