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44 Cards in this Set

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