Satellite radio in the context of "AM radio"

The music industry are individuals and organizations that earn money by writing songs and musical compositions, creating and selling recorded music and sheet music, presenting concerts, as well as the organizations that aid, train, represent and supply music creators. Among the many individuals and organizations that operate in the industry are: the songwriters and composers who write songs and musical compositions; the singers, musicians, conductors, and bandleaders who perform the music; the record labels, music publishers, recording studios, music producers, audio engineers, retail and digital music stores, and performance rights organizations who create and sell recorded music and sheet music; and the booking agents, promoters, music venues, road crew, and audio engineers who help organize and sell concerts.

The industry also includes a range of professionals who assist singers and musicians with their music careers. These include talent managers, artists and repertoire managers, business managers, entertainment lawyers; those who broadcast audio or video music content (satellite, Internet radio stations, broadcast radio and TV stations); music journalists and music critics; DJs; music educators and teachers; manufacturers of musical instruments and music equipment; as well as many others. In addition to the businesses and artists there are organizations that also play an important role, including musician's unions (e.g. American Federation of Musicians), not-for-profit performance-rights organizations (e.g. American Society of Composers, Authors and Publishers) and other associations (e.g. International Alliance for Women in Music, a non-profit organization that advocates for women composers and musicians).

Simulcast (a portmanteau of "simultaneous broadcast") is the broadcasting of programs or events across more than one resolution, bitrate or medium, or more than one service on the same medium, at exactly the same time (that is, simultaneously). For example, Absolute Radio is simulcast on both AM and on satellite radio. Likewise, the BBC's Prom concerts were formerly simulcast on both BBC Radio 3 and BBC Television. Another application is the transmission of the original-language soundtrack of movies or TV series over local or Internet radio, with the television broadcast having been dubbed into a local language. Yet another is when a sports game, such as Super Bowl LVIII, is simulcast on multiple television networks at the same time. In the case of Super Bowl LVIII, the game's main broadcast channel was CBS, but viewers could watch it on other CBS-owned television channels or streaming services as well; Nickelodeon and Paramount+ showed the English-language broadcast, while Univision showed the same visual but had Spanish-language broadcasters for its audio.

Digital broadcasting is the practice of using digital signals rather than analogue signals for broadcasting over radio frequency bands (radio broadcasting). Digital television broadcasting (especially satellite television) is widespread. Digital audio broadcasting is being adopted more slowly for radio broadcasting where it is mainly used in Satellite radio.

Digital links, thanks to the use of data compression, generally have greater spectral efficiency than analog links. Content providers can provide more services or a higher-quality signal than was previously available.

All-news radio is a radio format devoted entirely to the discussion and broadcast of news.

All-news radio is available in both local and syndicated forms, and is carried on both major US satellite radio networks. All-news stations can run the gamut from simulcasting an all-news television station like CNN, to a "rip and read" headline service, to stations that include live coverage of news events and long-form public affairs programming.

AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands.

The earliest experimental AM transmissions began in the early 1900s. However, widespread AM broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio", until television broadcasting became widespread in the 1950s and received much of the programming previously carried by radio. Later, AM radio's audiences declined greatly due to competition from FM radio, digital radio, satellite radio, Internet radio, music streaming services, and podcasting.

The BBC World Service is a British public service broadcaster owned and operated by the BBC. It is the world's largest external broadcaster in terms of reception area, language selection and audience reach. It broadcasts radio news, speech and discussions in more than 40 languages to many parts of the world on analogue and digital shortwave platforms, internet streaming, podcasting, satellite, DAB, FM, LW and MW relays. In 2024, the World Service reached an average of 450 million people a week (via TV, radio and online).

BBC World Service English maintains eight regional feeds with several programme variations, covering, respectively, East and Southern Africa; West and Central Africa; Europe and Middle East; the Americas and Caribbean; East Asia; South Asia; Australasia; and the United Kingdom. There are also two online-only streams, a general one and the other more news-orientated, known as News Internet. The service broadcasts 24 hours a day.