In radio, longwave, long wave or long-wave, and commonly abbreviated LW, refers to parts of the radio spectrum with wavelengths longer than what was originally called the medium-wave broadcasting band. The term is historic, dating from the early 20th century, when the radio spectrum was considered to consist of longwave (LW), medium-wave (MW), and short-wave (SW) radio bands. Most modern radio systems and devices use wavelengths which would then have been considered 'ultra-short'.
Doordarshan is an Indian public service broadcaster founded by the Government of India, owned by the Ministry of Information and Broadcasting and one of Prasar Bharati's two divisions. One of India's largest broadcasting organisations in studio and transmitter infrastructure, it was established on 15 September 1959. Doordarshan, which also broadcasts on digital terrestrial transmitters, provides television, radio, online and mobile service throughout metropolitan and regional India and overseas.
RTÉ Radio 1 is an Irish national radio station owned and operated by RTÉ and is the direct descendant of Dublin radio station 2RN, which began broadcasting on a regular basis on 1 January 1926.
BBC Radio Leicester is the BBC's local radio station serving the counties of Leicestershire and Rutland.
BBC Radio Leeds is the BBC's local radio station serving the county of West Yorkshire.
BBC Radio Sheffield is the BBC's local radio station serving South Yorkshire and north Derbyshire.
BBC Radio Cumbria is the BBC's local radio station serving the county of Cumbria. It broadcasts on FM, AM, DAB, digital TV and via BBC Sounds from studios in Carlisle.
All India Radio (AIR), officially known since 1957 as Akashvani, is the national public radio broadcaster of India and is a division of Prasar Bharati. It was established in 1936.
B105 is a commercial FM radio station broadcasting in Brisbane, Queensland, Australia, on a frequency of 105.3 MHz, and is part of Southern Cross Austereo's Hit Network. The station has undergone numerous branding changes over the years; it was branded as B105 following its conversion from AM to FM. This lasted until a co-branding as Hit 105.3 B105, then as Hit B105 and finally back to B105 in July 2020.
Kalundborg Radio is a major transmission facility for long- and mediumwave at the harbour of Kalundborg in Denmark.
AIR FM Rainbow is a group of FM radio channels across India. The group of stations was previously called FM Metro, but the name was changed to FM Rainbow in 2002. The group is run by All India Radio, or AIR, a government owned enterprise. It features Hindi and regional language songs, while also playing English music and providing hourly news in English, regional language and/or Hindi. In Bhopal, FM Rainbow broadcasts in Hindi to more than 12 districts of Madhya Pradesh and 21 Bhopal City suburbs. AIR FM Rainbow Delhi airs in as many as ten cities, more than any of the other FM Rainbow frequencies. Mumbai, Lucknow, Vizag, Hyderabad, Vijayawada, Kakinada, Kochi and Bangalore all receive FM Rainbow transmissions on a variety of frequencies.
FM broadcasting is a method of radio broadcasting using frequency modulation (FM). Invented in 1933 by American engineer Edwin Armstrong, wide-band FM is used worldwide to provide high fidelity sound over broadcast radio. FM broadcasting is capable of higher fidelity—that is, more accurate reproduction of the original program sound—than other broadcasting technologies, such as AM broadcasting. It is also less susceptible to common forms of interference, reducing static and popping sounds often heard on AM. Therefore, FM is used for most broadcasts of music or general audio. FM radio stations use the very high frequency range of radio frequencies.
The Orfordness transmitting station was a major radio broadcasting facility at Orford Ness on the Suffolk coast in the United Kingdom. It closed in May 2012 after more than 30 years of service. In 2017 Radio Caroline started broadcasting on 648 kHz.
The BBC Regional Programme was a radio service which was on the air from 9 March 1930 – replacing a number of earlier BBC local stations between 1922 and 1924 – until 1 September 1939 when it was subsumed into the Home Service, two days before the outbreak of World War II.
The BBC National Programme was a radio service which was on the air from 9 March 1930 – replacing the earlier BBC's experimental station 5XX – until 1 September 1939 when it was subsumed into the Home Service, two days before the outbreak of World War II.
Radio Caroline is a British radio station founded in 1964 by Ronan O'Rahilly and Alan Crawford initially to circumvent the record companies' control of popular music broadcasting in the United Kingdom and the BBC's radio broadcasting monopoly. Unlicensed by any government for most of its early life, it was a pirate radio station that never became illegal as such due to operating outside any national jurisdiction, although after the Marine Offences Act (1967) it became illegal for a British subject to associate with it.
KABQ is a commercial AM radio station in Albuquerque, New Mexico. It is owned by iHeartMedia, Inc., and is airing a sports radio format as "Fox Sports 1350". It had been carrying all iHeart podcasts since 2019.
Rai Radio 1 is an Italian radio channel operated by the state-owned public-broadcasting organisation RAI and specialising in news, sports, talk programmes, and popular music.
The British East Mediterranean Relay Station was one of the most powerful broadcasting stations in Cyprus. The medium wave transmitters were situated south of Limassol west of Lady's Mile Beach on the area of Western Sovereign Base Area at 34°37′9″N33°0′5″E and used for relaying radio programmes to the Middle East area on 639 kHz and 720 kHz with 500 kW.
