Radio History

  • Marconi

    Marconi
    Sent and received the first radio signal
  • AM Radio

    AM Radio
    AM Radio is Amaplitude 535 KHz - 1605 KHz
    AM Radio was the only waves out there for radio
  • William Who?

    William Who?
    eltrical engineering professor William Gladson of the University of Arkansas is said to have constructed an experimental wireless transmitetr
  • Lee De Forest

    Lee De Forest
    Created Audion Tube which is a vacuum tube that amplified signals
  • KDKA

    KDKA
    KDKA, first know as
    8XK, was the first radio station created by Frank Conrad
  • WEAF

    WEAF
    WEAF aired a 10 minute commercial for an apartment complex for $50. This is how radio made money.
  • FRC

    FRC
    FRC ( Federal Radio Commission) said that you have to have a license in order to ave a transmitter.
  • how many people have radios

    how many people have radios
    Two-thirds of American households own at least one radio.
  • Mediums

    Mediums
    Aound the middle of the Great Depression families got together around their radios and listened to the radio.
  • Entertainment

    Entertainment
    people turn to the Radio for entertanment
  • FM Radio

    FM Radio
    FM Radio is Frequency 88 - 108 MHz
  • T.V?

    T.V?
    FM is moved from its original home of 42-50 Mhz to 88-108 Mhz to make room for TV.