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Heinrich Rudolf Hertz proved that transmitted airborne electromagnetic waves in an experiment proving James Maxwell's theory of electromagnetism.
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Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system
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Brazilian priest Roberto Landell de Moura transmitted the human voice wirelessly for a distance of approximately a half mile
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Marconi opened the world's first purpose-built radio factory at New Street Works in Chelmsford, England.
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The first radio news program was broadcast by station 8MK in Detroit, Michigan
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Single side band and frequency modulation were invented by amateur radio operators. By the end of the decade, they were established commercial modes.
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AT&T commercialized the Mobile Telephone Service. From its start in St. Louis, AT&T then introduced Mobile Telephone Service to one hundred towns and highway corridors by 1948.
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Regency company introduced a pocket transistor radio, the TR-1, powered by a standard 22.5 V Battery.
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Color television was being broadcast commercially and the first radio communication satellite, Telstar, was launched.
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LORAN became the premier radio navigation system.
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U.S. Navy experimented with satellite navigation, resulting in the launch of the Global Positioning System.
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U.S. Army and DARPA launched an aggressive, successful project to construct a software-defined radio that can be programmed to be virtually any radio by changing its software program.
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"Survey of 3,000 Americans released by consultancy Bridge Ratings & Research" found that "[a]s much as 19% of U.S. consumers 12 and older listen to Web-based radio stations.
