radio history

By Garre++
  • 2016 BCE

    call letters

    call letters
    W is east
    K is west
  • 1980 BCE

    the big boom box

    the big boom box
    By 1980, the radio was made into a big boom box that was used to play music loud. People would carry this around on the streets with them.
  • 1940 BCE

    the golden era

    the golden era
    Early 30s and 40s
    middle of the depression
    radio provided an escape
  • 1939 BCE

    first radio

    first radio
    First radio invented
  • 1930 BCE

    AM waves/radios

    AM waves/radios
    amplitude modulation
    535 KHz-1605 KHz
  • 1930 BCE

    FM waves

    FM waves
    frequency modulation
    88-108 MHz
  • 1927 BCE

    FRC

    FRC
    organizing the licensing of transmitters
  • 1922 BCE

    WEAF

    WEAF
    Aired a 10 minute "commercial" or toll broadcast for an apartment complex charging $50
  • 1920 BCE

    radio stations

    radio stations
    Frank Ocean
    8xk,later renamed KDKA
  • 1920 BCE

    the music radio

    the music radio
    From radio's before, they were always used for listening to your favorite shows. But this one, it's often associated with rock-and-roll radio from the 1970s. This radio is also made more portable than the previous ones.
  • 1912 BCE

    benefits of the radio

    benefits of the radio
    Radios saved lives of the people on the titanic
  • 1912 BCE

    radio progression

    radio progression
    major edwin armstrong invented the FM transmitter
  • 1906 BCE

    Audion tube

    Audion tube
    Lee De Forest invented the Audion vacuum tube in 1906, which went on to become the most significant electronics innovation of the first half of the 20th century after its application to radio was understood and perfected. The vacuum tube actually originated with Thomas Edison's invention of the electric light bulb.

  • other radios

    other radios
    the smaller radio was invented

  • today's radio

    today's radio
    Satellite radio knocked the previous year radios's off the charts. In the 2000s the XM Radio and Sirius Satellite Radio began. XM radio has over 170 crystal clear, digital channels, covering a wide range of entertainment from music to sports, news and talk shows. All channels are commercial free. The line-up also includes sports, entertainment, and original programming.