History of Audio

By ao157940

  • Guglielmo Marconi

    Guglielmo Marconi
    Marconi sends and receives the first radio signal.

  • Audion Tube

    Audion Tube
    Lee de Forest invents the Audion Tube

  • First Radio Station

    First Radio Station
    KDKA newsRadio 1020 was the first radio station in 1920.
    Also still around today broadcasting out of Pittsburg, Pennsylvania -Started by Frank Conrad

  • Advertising

    Advertising
    A/V would not be what they are today without commercials. First made commercial in 1922

  • AM Waves

    AM Waves
    -Amplitude Modulation
    -from 535 KHz - 1605 KHz

  • FM Waves

    FM Waves
    -Frequency Modulation
    -changes frequency of the audio
    -88 - 108 MHz

  • Call letters

    -W is East of the MIssissippi
    -K is West of the MIssissippi
    These were assigned because if you are on a station and go to a different country, the station could have different type of music.

  • FRC

    FRC
    Uncle Charlie was poplar for making radio stations.
    He established FRC in 1972

  • Golden Era

    Golden Era
    The 30's and 40's
    -Middle of the Great Depression
    - At the time people wanted $money
    -Radio provies an escape for people

  • Family Medium

    Family Medium
    -The whole family can watch/listen to the radio/television together at the same time
    -Big band music/story hour/situational comedies/dramas

  • Telivision Appearance

    Telivision Appearance
    -As popularity grew, Advertisers went on TV
    -Radio lost money, & shows went up
    - TV wanted back at radio

  • Famous Shows o the Golden Era

    -Amos n Andy
    -GunSmoke
    -The Shadow
    -Our Miss Brooks
    -Superman
    -Dick Tracey
    -Little Orphan Annie
    -$64 Dollar Question!!!!
    -OG Who Wants to Be a Millionare