Radio History

By Wade Presley

  • Marconi

    Itailian Inventor
    Sent and recieved first Radio signal in 1895

  • Audion Tube

    In 1906, Lee de forest, created the audion tube, a vaccum tube that amplified signals.

  • Radio Stations

    8XK later renamed KDKA Frank Conrad still around today broadcasting out of pittsburgh, pennslyvania

  • Uncle Charlie

    Personal Radio Station

  • The dawn of adver.

    WEAF aired a 10min. commercial or toll broadcast. For an appointment complex chargetime 50$

  • FRC

    Uncle Charlie was to popular, establish FRC in 1927

  • Call Letters

    W is East of the miss. river
    K is West of the miss. river

  • AM and FM Waves

    Amplitude modulation
    535 KHz-1605KHz
    Frequency modulatoin
    88-108 MHz

  • Golden Era

    the 30's and 40's middle of great depression people for $$$

  • Radio's Progression

    Major Edwin Armstrong invented the FM transmitte which made for a stronger signed and higher quality sound

  • Radio's Progression 2

    Talk on Am
    Music on FM

  • Family Medium

    the entire family can enjoy it together, music, history, and situational

  • Famous shows

    Amos n Andy, Superman, GunSmoke, etc.

  • Why music

    Juke boxes Records and live concerts