History of Radio

By xr143341
  • Marconi

    Marconi

    Italian Inventor
    Sent and Recived first radio in1895
    he was the first or wasit a case of good PR
  • Audion Tube

    Audion Tube

    Lee De Forest,created (or"borrowed "the idea for) the adion tube ,a vacuum tube that amplifed signals
  • Iceburg stright ahead

    Iceburg stright ahead

    tif the titanic didnt have radio everone would died
  • Radio stations

    Radio stations

    8XK later renamed KDKA
    Frank Conrad
    Stilll around today broadcasting out of pittsburg,pennsylvania
  • Uncle Charlie

    Uncle Charlie

    personal radio stations

  • The Dawn Of Advertisisng

    WEAF, aired a 10 minute 'commercial'or toll broadcast ,for an apartment complex charging $50
  • FRC

    FRC

    Uncle charile was too popular
    organize the licensing of transmitters
    assigning radio station frequencies,call letters,and power limits

  • Call Letters

    W is east of the mississippi river
    K is west if the mississippi river'

  • AM waves

    amplitude modulation

  • FM waves

    frequency modulation

  • Goledn Era the

    Middle of the great depression -people were hurtin'foR $$$$$$
    Known as family medium