The BBC World Service is an international 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 and MW relays. In 2015, the World Service reached an average of 210 million people a week. In November 2016, the BBC announced that it would start broadcasting in additional languages including Amharic and Igbo, in its biggest expansion since the 1940s.
Shortwave radio is radio transmission using shortwave (SW) radio frequencies. There is no official definition of the band, but the range always includes all of the high frequency band (HF), which extends from 3 to 30 MHz ; above the medium frequency band (MF), to the bottom of the VHF band.
A numbers station is a shortwave radio station characterized by broadcasts of formatted numbers, which are believed to be addressed to intelligence officers operating in foreign countries. Most identified stations use speech synthesis to vocalize numbers, although digital modes such as phase-shift keying and frequency-shift keying, as well as Morse code transmissions, are not uncommon. Most stations have set time schedules, or schedule patterns; however, some have no discernible pattern and broadcast at unpredictable times. Stations may have set frequencies in the high-frequency band.
A radiotelephone, abbreviated RT, is a radio communication system for conducting a conversation; radiotelephony means telephony by radio. It is in contrast to radiotelegraphy, which is radio transmission of telegrams (messages), or television, transmission of moving pictures and sound. The term is related to radio broadcasting, which transmit audio one way to listeners. Radiotelephony refers specifically to two-way radio systems for bidirectional person-to-person voice communication between separated users, such as CB radio or marine radio. In spite of the name, radiotelephony systems are not necessarily connected to or have anything to do with the telephone network, and in some radio services, including GMRS, interconnection is prohibited.
In radio communication, skywave or skip refers to the propagation of radio waves reflected or refracted back toward Earth from the ionosphere, an electrically charged layer of the upper atmosphere. Since it is not limited by the curvature of the Earth, skywave propagation can be used to communicate beyond the horizon, at intercontinental distances. It is mostly used in the shortwave frequency bands.
JJY is the call sign of a low frequency time signal radio station located in Japan.
Shortwave listening, or SWLing, is the hobby of listening to shortwave radio broadcasts located on frequencies between 1700 kHz and 30 MHz. Listeners range from casual users seeking international news and entertainment programming, to hobbyists immersed in the technical aspects of radio reception and collecting official confirmations that document their reception of distant broadcasts (DXing). In some developing countries, shortwave listening enables remote communities to obtain regional programming traditionally provided by local medium wave AM broadcasters. In 2002, the number of households that were capable of shortwave listening was estimated to be in the hundreds of millions.
Aboriginal Voices Radio Network was a Canadian radio network, which primarily broadcast music programming and other content of interest to aboriginal people. As of June 2015, the network operated stations in Toronto, Ontario, Calgary and Edmonton in Alberta, and Vancouver, British Columbia. All of its stations were licensed as rebroadcasters of its flagship station, CKAV-FM in Toronto. The network's administrative office was located in Ohsweken, Ontario, on the Six Nations Indian reserve near Brantford. The stations' music programming consisted mainly of adult contemporary music, along with specialty programs focusing on aboriginal-oriented content.
HCJB, "The Voice of the Andes", was the first radio station with daily programming in Ecuador and the first Christian missionary radio station in the world. The station was founded in 1931 by Clarence W. Jones, Reuben Larson, and D. Stuart Clark. HCJB now focuses on Ecuador with unified programming on FM at 89.3 MHz in Pichincha, at 92.5 MHz in Manabí, at 96.1 MHz in Tungurahua and Cotopaxi, at 98.3 MHz in Esmeraldas and with separate programming on AM at 690 kHz. Broadcasts in Spanish and indigenous languages on 6.05 MHz (1 kW), continue on an intermittent basis with a new solid state transmitter which in 2017 replaced an older (5 kW) transmitter. These broadcasts were not listed on the HCJB English website as of February 2016.
DXing, taken from DX, the telegraphic shorthand for "distance" or "distant", is the hobby of receiving and identifying distant radio or television signals, or making two-way radio contact with distant stations in amateur radio, citizens band radio or other two-way radio communications. Many DXers also attempt to obtain written verifications of reception or contact, sometimes referred to as "QSLs" or "veries".
CBN is a public AM radio station in St. John's, Newfoundland and Labrador, Canada. It carries a news, talk and information format and is the local Radio One station of the Canadian Broadcasting Corporation.
WRMI is a shortwave radio station broadcasting from Okeechobee, Florida, United States. WRMI is a commercial radio station that sells airtime to businesses and organizations.
World Harvest Radio International (WHRI) is a shortwave radio station in the United States, broadcasting conservative religious programming worldwide in the English language on a number of frequencies. Part of the Family Broadcasting Corporation Christian broadcasting group, WHRI is based in Cypress Creek, South Carolina, with programs for audiences in Asia broadcast from T8WH in Palau.
The Woofferton transmitting station is owned and operated by Encompass Digital Media, as one of the BBC's assets which were handed over as part of the privatization of World Service distribution and transmission in 1997. It is the last remaining UK shortwave broadcasting site, located at Woofferton, south of Ludlow, Shropshire, England. The large site spreads across into neighbouring Herefordshire.
Apex radio stations was the name commonly given to a short-lived group of United States broadcasting stations, which were used to evaluate transmitting on frequencies that were much higher than the ones used by standard amplitude modulation (AM) and shortwave stations. Their name came from the tall height of their transmitter antennas, which were needed because coverage was primarily limited to local line-of-sight distances. These stations were assigned to what at the time were described as "ultra-high shortwave" frequencies, between roughly 25 and 44 MHz. They employed amplitude modulation (AM) transmissions, although in most cases using a wider bandwidth than standard broadcast band AM stations, in order to provide high fidelity sound with less static and distortion.
The Voice of Vietnam or VOV is the Vietnamese national radio broadcaster. Directly controlled by the government of Vietnam, it is tasked with propagating the policies of the Party and the laws of the state.
Radio jamming in China is a form of censorship in the People's Republic of China that involves deliberate attempts by state or Communist Party organs to interfere with radio broadcasts. In most instances, radio jamming targets foreign broadcasters, including Voice of America (VOA), Radio Free Asia, the BBC World Service, Sound of Hope (SOH) and stations based in Taiwan.
WMLK (9.275 MHz) is a shortwave radio station in Bethel, Pennsylvania owned by the Assemblies of Yahweh. WMLK derives its callsign from MLK, representing the consonants of the Hebrew word "malak" meaning a "messenger" or angel. A different vocalisation of the word will also yield the definition salt.
Radio Cordac was a well-known Protestant missionary radio service directed to listeners throughout Central Africa. Bob and Esther Kellum, along with Burundian preachers, began communications with the government in February to get a franchise, which was granted in September of 1963. Transmissions were based in Bujumbura, Burundi. The station ran from around 1963 to 1977. In 1969, it was one of only two radio stations in the entire country, sending out broadcasts in French, English, Kirundi and Swahili. Radio Cordac went off the air in 1977 when the Burundi government decided to stop private radio stations and only allow government stations. The president at the time, decided no western missionaries could stay in the country.
WTWW is a shortwave station located in Lebanon, Tennessee.
