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44 Cards in this Set
- Front
- Back
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1844
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Samuel Morse: Morse Code
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1873
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Maxwell Published "Theory of Electromagnetic Waves"
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1876
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Alexander G. Bell invented telephone
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1877
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Edison Labs Patented 1st recording devise
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1888
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Hertz Demostrated existance of electromagnetic waves
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1890's
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Berlinger: Basic principals of Magnetic Recording
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1890's
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Poulson: Basic principals of magnetic recording
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1894
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Marconi: 1st wireless transmission of morse code
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1897
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Marconi went to England
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1899
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1st wireless transmission of England to France
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1901
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1st transatlantic transmission
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904
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Fleming invented Diode
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1906
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the first human voice is transmitted without wires
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1906
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Fessden perfected voice over radio
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1907
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DeForest invented the vacuume tube
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1912
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Radio Act of 1912
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Radio Act of 1912
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Approved only 2 frequencies to be used
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1916
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Sarnoff came up with the idea to broadcast to mass audiances
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1920's
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electricity in most homes- made phonogrpah popular appliance
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1920
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Conrad boradcasted music on nights and weekends-first DJ
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November 2, 1920
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first new boradcast announced that HArding was the new president, about 1,000 people heard station KDKA
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August 1922
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1st commercial, selling real estate
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1926
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5 million homes had radios
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1926
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1st radio netwrok: 2 companies-
1. Radio Corporation of America (RCA) 2. American Telephone & telegraph (AT&T) |
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1926
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radio becomes a national forum for news & pop culture
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1927
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Radio Act of 1927
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Radio Act of 1927
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Created the Federal Radio Comission (FRC)
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1930's
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process for FM invented
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1934
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Communication Act of 1934
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Communication Act of 1934
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FRC was replaced by Federal Communications Commission
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1948-1987
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Fairness Doctrine
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Fairness Doctire
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required timeto controversial public issues and giving the opportunity for other views to be heard- abolished becasue it was unconstitutional
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1934
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Equal time rule
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Equal time rule
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provides political issues equal time if requested
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1935
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Black aried in the Make Believe Ballroom becase the orchestra didn't show he played recorded tapes of the band
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1940's
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Germans:1st magnetic recording process/tape
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1947
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1st US radio Program to use tape recording "the Bing Crosby show"
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1950's
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television arrived;everyone thought radio/recording industry would die
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1950's
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stereo introduced
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1960's
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Norel CO developed 1st audio cassette
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1980's
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intro of digital recording technology (CD)
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1980's
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9,000 radio stations- US evenly divided between AM & FM
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1980's
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National Public Radio
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1990'a
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introduced digital audio tape (DAT) technology & mini disc (MD) technology
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