history of radio

By cnute6

  • Expierementing

    henricih hertz started conducting expierments on electromagnetic waves.

  • radio over water

    marconi discovers that radio waves can travel over water.

  • am radio

    lee deforest invented am radio that allowed multiple statons to be existant

  • translantic transmition

    marconi conducted the first radio transmition across the atlantic.

  • Broadcasting

    speech traveled through radio waves from new york to san francisico

  • military use

    the government took control of all patents related to radio technology.

  • Fm radio

    edwin armstrong founded frequency modulated or fm radio in 1933