The history of radio

By jaydentshill
  • Hertzian waves

    Hertzian waves

    Hertz was able to send radio waves through air
  • Marconi invents radio

    Marconi invents radio

    Marconi invented radio how ever some people debate that he didnt but got it to the press.
  • telefunken

    telefunken

    telefunken society of wierless telfon
  • Audion Tube

    Audion Tube

    lee de forest invents the Audion Tube first amplifier
  • KDKA

    KDKA

    first radio startion, made by frank conrad.
  • First commerical

    First commerical

    WEAF aired the first commerical
  • FRC

    FRC

    assinged frequencies to stations
  • FM radio

    FM radio

    frequency modulation of the radio wave reduces static sounds