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A broadcasting antenna in Stuttgart. Broadcasting is the distribution of audio or electronic mass communications medium, but typically one using the electromagnetic spectrum (radio waves), in a one-to-many model. [1] Broadcasting began with AM radio, which came into popular use around 1920 with the spread of vacuum tube radio transmitters and ...
Radio broadcasting is the broadcasting of audio (sound), sometimes with related metadata, by radio waves to radio receivers belonging to a public audience. In terrestrial radio broadcasting the radio waves are broadcast by a land-based radio station, while in satellite radio the radio waves are broadcast by a satellite in Earth orbit.
The following outline is provided as an overview of and topical guide to television broadcasting: Television broadcasting : form of broadcasting in which a television signal is transmitted by radio waves from a terrestrial (Earth based) transmitter of a television station to TV receivers having an antenna.
Original major radio broadcasting networks in the United States The WEAF and WJZ chains. Following the introduction of radio broadcasting in the early 1920s, the American Telephone and Telegraph Company (AT&T) developed the first radio network, linking together individual stations with specially prepared long-distance telephone lines in what at the time was called a "chain".
Copy of a newspaper (El Universo), an example of mass media. Mass media include the diverse arrays of media that reach a large audience via mass communication. Broadcast media transmit information electronically via media such as films, radio, recorded music, or television. Digital media comprises both Internet and mobile mass communication.
For example, an Internet channel may distribute text or music worldwide, while a public address system may broadcast very limited "ad hoc" soundbites to a small population within its range. The main article for this category is Broadcasting .
Commercial broadcasting (also called private broadcasting) is the broadcasting of television programs and radio programming by privately owned corporate media, as opposed to state sponsorship, for example.
These companies and supporters of the "American system of broadcasting" defined radio as "commercial, national, live, and network on economic, technological, aesthetic and legislative levels." In 1929, NBC announced its pride and superiority among radio program companies, stating that live broadcast was superior to recorded programs.