History of Radio

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  • Hertz detects radio waves

    Hertz detects radio waves

    Hertz detected radio waves in 1888 by using a high voltage induction coil. Through his experiments he was able to produce his own.
  • Marchese Guglielmo Marconi

    Marchese Guglielmo Marconi

    Marconi was an Italian inventor born in 1874. In 1895, he sent and recieved the first radio signal.
  • Audion Tube

    Audion Tube

    In 1906, Lee De Forest, created (or borrowed, the real inventor is believed to be a Canadian inventor named Reginald Fessenden) the Audion Tube. This device is a vacuum tube that allowed for amplifying sound.
  • First Music Broadcast

    First Music Broadcast

    The first music broadcast took place on Christmas Eve in 1906. This became known as the first AM Radio.
  • First Radio Station

    First Radio Station

    The first radio station KDKA was originally named 8XK and run by Frank Conrad. It is still broadcasting today, running out of Pittsburg, Pennsylvania.
  • First Commercial

    First Commercial

    The first sponsored radio commercial was aired back in 1922. This was done by a New York Radiostation called WEAF for the Hawthorne Court Apartments in Jackson Heights.
  • First Car Radio

    First Car Radio

    The first commercial in-car radio was invented in 1930. This was invented by the Galvin brothers' and cost $130 for the unit. This was the first product to have the Motorola name.
  • FM Radio

    FM Radio

    The FM Radio was invented by Major Edwin Armstrong in 1935. At the time, it could only be played in mono, but it was a step up from AM Radio which already had its limits in the eyes of inventors.