radio history By clout boy Jan 1, 1893 first radio 1899 Marconi establishes first radio link between England and France. 1900 American scientist R.A. Fessenden transmists human speech via radiowaves. 1901 Marconi transmits telegraphic radio messages from Cornwall to Newfoundland 1904 First radio transmission of music at Graz, Austria. 1905 Marconi invents the directional radio antennae. 1906 the creation of audio tube lee de forest created a vacuum tube that amplifies signals 1906 First radio program of voice and music broadcast in the U.S. (by R.A. Fessenden) 1907 Fessenden invents a high-frequency electric generator that produces radio waves with a frequency of 100 kHz. 1908 GE develops a 100 kHz, 2 kW alternator for radio communication. 1910 Radio communications gain publicity when the captain of the Montrose alerts Scotland via radio of an escaping criminal. Jan 1, 1939 the fm radio station was invented Jan 1, 1950 the smaller radio Jan 1, 1980 the big boom box Jan 1, 2000 today's radio
