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Period: to
Radio Timespan
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Period: to
Radio History Timespan
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1880
Heinrich Rudolf Hertz was able to conclusively prove transmitted airborne electromagnetic waves in an experiment confirming Maxwell's theory of electromagnetism. -
1890
Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on Hertzian waves or also called radio transmission -
1900
Brazilian priest Roberto Landell de Moura transmitted the human voice wirelessley for a distance of about a half mile. -
1910
In June 1912 Marconi opened the world's first purpose-built radio factory at New Street Works in Chelmsford, England. -
1920
The first radio news program was broadcast August 31, 1920 by station 8MK in Detroit, Michigan. -
1930
In the early 1930s, single sideband and frequency modulation were invented by amateur radio operators. -
1940
In 1947 AT&T commercialized the Mobile Telephone Service. -
1950
In 1955, the newly formed Sony company introduced its first transistorized radio. -
1960
By 1963, color television was being broadcast commercially (though not all broadcasts or programs were in color), and the first (radio) communication satellite, Telstar, was launched. -
1970
In the 1970s, LORAN became the premier radio navigation system. -
1980
Soon, the U.S. Navy experimented with satellite navigation, culminating in the launch of the Global Positioning System (GPS) constellation in 1987. -
1990
On November 7, 1994, WXYC (89.3 FM Chapel Hill, NC USA) became the first traditional radio station to announce broadcasting on the Internet -
2000
From 2000 onwards, most Internet Radio Stations increased their stream quality as bandwidth became more economical. -
2010
On January 31, 2016, webcasters who are governed by rules adopted by the Copyright Royalty Board were required to pay to SoundExchange an annual, nonrefundable minimum fee of $500 for each channel and station.[41] the fee for services with greater than 100 stations or channels being $50,000 annual.[42]
