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First Electromagnetic Waves
It is likely that the first intentional transmission of a signal by means of electromagnetic waves was performed in an experiment by David Edward Hughes around 1880. -
Wireless Telegraph system
Over several years starting in 1894 the Italian inventor Guglielmo Marconi built the first complete, commercially successful wireless telegraphy system based on airborne Hertzian waves (radio transmission). -
Radio Factory
In June 1912 Marconi opened the world's first purpose-built radio factory at New Street Works in Chelmsford, England. -
First College Radio Station
The first college radio station began broadcasting on October 14, 1920 from Union College, Schenectady, New York under the personal call letters of Wendell King, an African-American student at the school. -
First known Tv
In the early 1930s, single sideband and frequency modulation were invented by amateur radio operators. By the end of the decade, they were established commercial modes. Radio was used to transmit pictures visible as television as early as the 1920s. -
AT&T Service
From its start in St. Louis in 1946, AT&T then introduced Mobile Telephone Service to one hundred towns and highway corridors by 1948. -
Pocket Radios
In 1954, the Regency company introduced a pocket transistor radio, the TR-1, powered by a "standard 22.5 V Battery." -
Color Television
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. In the late 1960s. -
LORAN
In the 1970s, LORAN became the premier radio navigation system. -
GPS
Soon, the U.S. Navy experimented with satellite navigation, culminating in the launch of the Global Positioning System (GPS) constellation in 1987. -
Software-defined Radio
In 1994, the 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. -
SoundExchange
On May 1, 2007, SoundExchange came to an agreement with certain large webcasters regarding the minimum fees that were modified by the determination of the Copyright Royalty Board. -
Annual Pay?
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.
