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History of Radio

By Dabwinkle
  • Heinrich Hertz

    Heinrich Hertz

    First to detect and produce radio waves.
  • First Radio

    First Radio

    Invented by Nikola Tesla. Started with the discovery of radio waves.
  • First radio signal

    First radio signal

    Marconi, and italian invetnor, sent and recived radio signal
  • Radio Transmission

    Radio Transmission

    First radio transmission of music
  • Audion Tube

    Audion Tube

    Lee De Forest created a vacuum tube that amplified signals
  • Radio Recievers

    Radio Recievers

    The cascade-tuning radio receiver and the heterodyne receiver are introduced.
  • First radio stations

    First radio stations

    8XK, renamed KDKA. Still broadcasting today
  • FRC

    FRC

    orgainzed the licensing of transmitters. Assigning radio station frequencies, call letters, and power limits.
  • Broadcasting TV

    Broadcasting TV

    A station in NYC, WRNY begins to broadcast televsion shows.
  • Golden Era

    Golden Era

    Middle of great depression
  • First FM station

    First FM station

    Created by Edward Armstrong. FM stations traditionally play music.
  • Radio's Demise

    Radio's Demise

    TV makes an appearence in late 30's. As popularity grew, advertisers went to TV
  • Cassete Tape

    Cassete Tape

    Philps created the first compact casset for audio storage.
  • Music Radio

    Music Radio

    Radio competes with other sources of enbterainment. Additon of music keeps the radio in running.
  • Boom-box

    Boom-box

    By 1980, the radio was made into a big boom box that would play music loud. Portable radio