Radio History

By michae748
  • Marconi

    Marconi

    Sent and received the first radio signal
  • First Audion Tube

    First Audion Tube

    Created by Lee De Forest the Audion tube can amplify radio signals
  • First Radio Station

    First Radio Station

    Created By Frank Conrad Its Was called 8xk then later renamed KDKA

  • The Dawn Of Advertising

    the First commercial was 10 min long and costed $50

  • The Establishment of FRC

    Started when Uncle Charlie stations started getting popular

  • Golden Era

    Middle Of the Great Depression

  • Call Letters

    W is East of the Missisippi River
    K is West of the Missippi river

  • AM Waves

    Amplitude Modulation
    535KHz-1605KHz

  • FM Frecuency Modulation

    88-108MHz