Radio History

By haleycox
  • Period: to

    timeline

  • 1880

    1880
    The first intentional transmission of a signal as an experiment was sent by David Edwards Hughes.

  • 1890

    1890
    Guglielmo Marconi built the first commercially successful wireless telegraphy system.

  • 1900

    1900
    Roberto Landell de Moura transmitted the human voice wirelessly with a distance of half a mile

  • 1910

    1910
    Marconi opens up the worlds first purposely built radio factory.

  • 1920

    1920
    The first news program was brodcast by the station 8MK in Detroit.

  • 1930

    1930
    Single sideband and frequency modulation were invented

  • 1940

    1940
    Commercial television transmissions started in America and Europe.
    IN 1947 AT&T commercialized the Mobile telephone service.

  • 1950

    1950
    The Regency Company introduced a pocket radio. In 1955 the new company Sony produces its first transistorized radio.

  • 1963

    1963
    In the early 1960's color Television was being broadcast commercially. Not all stations were in color.

  • 1970

    1970
    In 1970, LORAN became the premier radio navigation syste

  • 1980

    1980
    The GPS is invented for the US Navy.

  • 1990

    1990
    In 1994, the U.S. Army and DARPA launched a software-defined radio that can be programmed to be virtually any radio by changing its software program. Digital transmissions began to be applied to broadcasting in the late 1990s.

  • 2000

    2000
    Internet Radio is created.