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Also AM radio or AM. Used interchangeably with kilohertz (kHz) and medium wave. A modulation technique used in electronic communication where the amplitude (signal strength) of the wave is varied in proportion to that of the message signal. Developed in the early 1900s, this technique is most commonly used for transmitting an audio signal via a radio wave measured in kilohertz (kHz). See AM ...
Dark (broadcasting) Dayparting; Dead air; Deus ex machina; DigiCipher 2; Digital cable; Digital master; Digital on-screen graphic; Digital on-screen graphics by country; Digital rights management; Digital television; Digital television adapter; Digital video; Digital video recorder; Direct-broadcast satellite; Direct-to-disc recording; Direct ...
Broadcast.com servers were reportedly overwhelmed by the spike in traffic, locking out many potential viewers. [20] Virtually all major broadcasters now have a webcast of their output, from the BBC to CNN to Al Jazeera to UNTV in television to Radio China, Vatican Radio, [21] United Nations Radio and the World Service in radio.
The term "mass media" is sometimes erroneously used as a synonym for "mainstream media". Mainstream media are distinguished from alternative media by their content and point of view. Alternative media are also "mass media" outlets in the sense that they use technology capable of reaching many people, even if the audience is often smaller than ...
See also References External links A advocacy journalism A type of journalism which deliberately adopts a non- objective viewpoint, usually committed to the endorsement of a particular social or political cause, policy, campaign, organization, demographic, or individual. alternative journalism A type of journalism practiced in alternative media, typically by open, participatory, non ...
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 ...
News broadcasting is the medium of broadcasting various news events and other information via television, radio, or the internet in the field of broadcast journalism. The content is usually either produced locally in a radio studio or television studio newsroom , or by a broadcast network .
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.