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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. To receive the content the listener must have a broadcast radio receiver (radio). Stations are often affiliated with a radio network that provides content in a common radio format, either in broadcast syndication or simulcast, or both. The encoding of a radio broadcast depends on whether it uses an analog or digital signal. Analog radio broadcasts use one of two types of radio wave modulation: amplitude modulation for AM radio, or frequency modulation for FM radio. Newer, digital radio stations transmit in several different digital audio standards, such as DAB, HD radio, or DRM.
CBC Radio One is the English-language news and information radio network of the publicly owned Canadian Broadcasting Corporation. It is commercial-free and offers local and national programming. It is available on AM and FM to 98 percent of Canadians and overseas over the Internet, and through mobile apps. CBC Radio One is simulcast across Canada on Bell Satellite TV satellite channels 956 and 953, and Shaw Direct satellite channel 870. A modified version of Radio One, with local content replaced by additional airings of national programming, is available on Sirius XM channel 169. It is downlinked to subscribers via SiriusXM Canada and its U.S.-based counterpart, Sirius XM Satellite Radio.
Low-power broadcasting is broadcasting by a broadcast station at a low transmitter power output to a smaller service area than "full power" stations within the same region. It is often distinguished from "micropower broadcasting" and broadcast translators. LPAM, LPFM and LPTV are in various levels of use across the world, varying widely based on the laws and their enforcement.
The FM broadcast band is a range of radio frequencies used for FM broadcasting by radio stations. The range of frequencies used differs between different parts of the world. In Europe and Africa and in Australia and New Zealand, it spans from 87.5 to 108 megahertz (MHz) - also known as VHF Band II - while in the Americas it ranges from 88 to 108 MHz. The FM broadcast band in Japan uses 76 to 95 MHz, and in Brazil, 76 to 108 MHz. The International Radio and Television Organisation (OIRT) band in Eastern Europe is from 65.9 to 74.0 MHz, although these countries now primarily use the 87.5 to 108 MHz band, as in the case of Russia. Some other countries have already discontinued the OIRT band and have changed to the 87.5 to 108 MHz band.
All India Radio (AIR), also known as Akashvani, is India's state-owned public radio broadcaster. Founded in 1936, it operates under the Ministry of Information and Broadcasting and is one of the two divisions of Prasar Bharati. Headquartered at the Akashvani Bhavan in New Delhi, it houses the Drama Section, FM Section, and National Service. It also serves as the home of the Indian television station Doordarshan Kendra.
Last.fm is a music website founded in the United Kingdom in 2002. Utilizing a music recommender system known as "Audioscrobbler," Last.fm creates a detailed profile of each user's musical preferences by recording the details of the tracks they listen to, whether from Internet radio stations or from the user's computer or portable music devices. This information is transferred ("scrobbled") to Last.fm's database via the music player or through a plug-in installed in the user's music player. The data is then displayed on the user's profile page and compiled to create reference pages for individual artists.
Campus radio is a type of radio station that is run by the students of a college, university or other educational institution. Programming may be exclusively created or produced by students, or may include program contributions from the local community in which the radio station is based. Sometimes campus radio stations are operated for the purpose of training professional radio personnel, sometimes with the aim of broadcasting educational programming, while other radio stations exist to provide alternative to commercial broadcasting or government broadcasters.
HD Radio (HDR) is a trademark for a so-called in-band on-channel (IBOC) digital radio broadcast technology. HD radio generally simulcasts an existing analog radio station in digital format with less noise and with additional text information. HD Radio is used primarily by AM and FM radio stations in the United States, U.S. Virgin Islands, Canada, Mexico and the Philippines, with a few implementations outside North America.
Contemporary hit radio is a radio format that is common in many countries that focuses on playing current and recurrent popular music as determined by the Top 40 music charts. There are several subcategories, dominantly focusing on rock, pop, or urban music. Used alone, CHR most often refers to the CHR-pop format. The term contemporary hit radio was coined in the early 1980s by Radio & Records magazine to designate Top 40 stations which continued to play hits from all musical genres as pop music splintered into Adult contemporary, Urban contemporary, Contemporary Christian and other formats.
FM broadcasting is a method of radio broadcasting that uses frequency modulation (FM) of the radio broadcast carrier wave. Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to transmit high-fidelity sound over broadcast radio. FM broadcasting offers higher fidelity—more accurate reproduction of the original program sound—than other broadcasting techniques, such as AM broadcasting. It is also less susceptible to common forms of interference, having less static and popping sounds than are often heard on AM. Therefore, FM is used for most broadcasts of music and general audio. FM radio stations use the very high frequency range of radio frequencies.
A radio format or programming format describes the overall content broadcast on a radio station. The radio format emerged mainly in the United States in the 1950s, at a time when radio was compelled to develop new and exclusive ways to programming by competition with television. The formula has since spread as a reference for commercial radio programming worldwide.
KIIS-FM is a commercial radio station licensed to Los Angeles, California, United States, and broadcasts to the Greater Los Angeles area. The station airs a Top 40 (CHR) format. Owned by iHeartMedia, KIIS-FM is the origin of the conglomerate's KISS-FM brand, and serves as the flagship station for the radio program On Air with Ryan Seacrest. KIIS-FM's studios are located in Burbank, while the station transmitter resides on Mount Wilson, north of Los Angeles.
Radio enjoys a huge following in the United Kingdom. There are around 600 licensed radio stations in the country. For a more comprehensive list see List of radio stations in the United Kingdom.
All-news radio is a radio format devoted entirely to the discussion and broadcast of news.
WRVE is a commercial radio station licensed in Schenectady and serving the Capital District and Upper Hudson Valley in New York. It broadcasts a hot adult contemporary radio format and calls itself "99.5 The River", referring to the Hudson River. The station is owned by iHeartMedia as one of seven radio stations owned by the company in the Albany-Schenectady-Troy radio market.
WSIX-FM is a radio station licensed to serve Nashville, Tennessee. Owned by iHeartMedia, the station broadcasts a country music format. WSIX's studios are located in Nashville's Music Row district and the transmitter site is in Forest Hills, Tennessee.
The Voice of Vietnam is the Vietnamese national radio broadcaster. Directly run by the government of Vietnam alongside the Vietnam Television (VTV) and the Vietnam News Agency (VNA), VOV is tasked with promoting the policies of the Communist Party and the laws of the state.
A broadcast relay station, also known as a satellite station, relay transmitter, broadcast translator (U.S.), re-broadcaster (Canada), repeater or complementary station (Mexico), is a broadcast transmitter which repeats the signal of a radio or television station to an area not covered by the originating station.
Capital is a network of twelve independent contemporary hit radio stations in the United Kingdom, broadcasting a mix of local and networked programming. Ten of the stations are owned and operated by Global, while the other two are owned and operated under separate franchise agreements.