History of Radio

By facebooker_100005872475864

  • 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.