Radio is a media technology that permits one person or organization to communicate with many receivers over large distances via the electromagnetic spectrum and radiated electrons. Listening to radio is possible by modulating voice or music onto a radio wave that transmits at a predetermined signal. A radio receiver is tuned to the modulated carrier
Timely information delivered over radio waves dates back to the earliest stations and before ews). Lee de Forest reported the election night results via radio in 1916 and the first licensed US station to report election returns was KDKA in 1920. By 1924, radio broadcasts became a major influence on public opinion because they could
A traditional radio network consists of a series of radio broadcasting stations connected in some way (typically by broadcast, landline, microwave, or satellite) so that each of the stations can carry the same programs or advertisements. Often, the stations will carry the programs simultaneously, but under some circumstances (e.g., stations in differing time zones), a
The introduction of radio broadcasting during the 1920s released a tide of social changes, which have profoundly affected every society in the world, changes that have subsequently been amplified by television and information and communication technology. By the end of the twentieth century these electronic media had become so embedded in social, political, and economic
The history of radio technology can be divided chronologically into four main eras: experimentation with basic equipment between the 1890s and 1920s; broadcasting to mass audiences using established processes between the 1930s and 1950s; adjustment to the arrival of television from the 1950s; and, finally, the emergence of digital radio technology from the late 1980s.
Established in 1931, Vatican Radio (VR) is one of the world’s oldest international broadcasting services. Its birth can be traced back to the Lateran Treaty, signed in 1929 by Benito Mussolini and the secretary of the Vatican State, Cardinal Gasparri. Aimed at resolving 59 years of tense relationships between the kingdom of Italy and the
Radio Free Europe and Radio Liberty were among the half dozen major broadcast information sources for the Soviet bloc from soon after World War II until the final collapse of the Soviet system in 1991. The two shortwave stations were covertly founded in 1950 (Radio Free Europe) and 1953 (Radio Liberation from Bolshevism, its initial
Radio France Internationale began in 1929 with the creation of the French national office of radio broadcasting. Two years later, in 1931, Radio France began broadcasting to French colonies in 20 languages under the name Poste Colonial. Its target audience was French expatriate colonizers and a few natives, termed évolués, who had been trained to
Since radio broadcasting was launched shortly after World War I, it has served two culturally different, almost paradoxical, functions in relation to its distribution. On the one hand, it turned out to be one of the more effective instruments in the nation-building process, and on the other it was from its initial years distributed on
Radio Careers Background Broadcast technology developed in the 20th century enabled people to reach large audiences around the world instantly, changing forever the way we communicate. The power and mystery of the radio broadcast in the United States has been marked by events like Orson Welles’s 1938 live radio broadcast of “The War of the