Related Research Articles
Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten meters to one meter. Frequencies immediately below VHF are denoted high frequency (HF), and the next higher frequencies are known as ultra high frequency (UHF).
Medium wave (MW) is the part of the medium frequency (MF) radio band used mainly for AM radio broadcasting. The spectrum provides about 120 channels with limited sound quality. During daytime, only local stations can be received. Propagation in the night allows strong signals within a range of about 2,000 km. This can cause massive interference because on most channels, about 20 to 50 transmitters operate simultaneously worldwide. In addition to that, amplitude modulation (AM) is prone to interference by all sorts of electronic devices, especially power supplies and computers. Strong transmitters cover larger areas than on the FM broadcast band but require more energy. Digital modes are possible but have not reached the momentum yet.
Radio broadcasting is transmission of audio (sound), sometimes with related metadata, by radio waves intended to reach a wide 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 which provides content in a common radio format, either in broadcast syndication or simulcast or both. Radio stations broadcast with several different types of modulation: AM radio stations transmit in AM, FM radio stations transmit in FM, which are older analog audio standards, while newer digital radio stations transmit in several digital audio standards: DAB, HD radio, DRM. Television broadcasting is a separate service which also uses radio frequencies to broadcast television (video) signals.
A clear-channel station is an AM radio station in North America that has the highest protection from interference from other stations, particularly concerning night-time skywave propagation. The system exists to ensure the viability of cross-country or cross-continent radio service, and is enforced through a series of treaties and statutory laws. Now known as Class A stations since 1982, they are occasionally still referred to by their former classifications of Class I-A, Class I-B, or Class I-N. The term "clear-channel" is used most often in the context of North America and the Caribbean, where the concept originated.
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, 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. The International Radio and Television Organisation (OIRT) band in Eastern Europe is from 65.8 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.
Deutsche Welle or DW is a German public state-owned international broadcaster funded by the German federal tax budget. The service is available in 30 languages. DW's satellite television service consists of channels in English, German, Hindi, Spanish, and Arabic. The work of DW is regulated by the Deutsche Welle Act, meaning that content is intended to be independent of government influence. DW is a member of the European Broadcasting Union (EBU).
RTÉ Radio 1 is the principal radio channel of Irish public-service broadcaster Raidió Teilifís Éireann and is the direct descendant of Dublin radio station 2RN, which began broadcasting on a regular basis on 1 January 1926. The station is a rare modern example of a mixed radio channel, offering a wide spectrum of programming which is mainly speech-based but also includes a fair amount of music.
Oregon Public Broadcasting (OPB) is the primary television and radio public broadcasting network for most of the U.S. state of Oregon as well as southern Washington. OPB consists of five full-power television stations, dozens of VHF or UHF translators, and over 20 radio stations and frequencies. Broadcasts include local and regional programming as well as television programs from the Public Broadcasting Service (PBS) and American Public Television (APT), and radio programs from National Public Radio (NPR), Public Radio International (PRI), American Public Media (APM), Public Radio Exchange (PRX), and the BBC World Service, among other distributors. Its headquarters and television studios are located in Portland.
WUCW, virtual channel 23, is a CW-affiliated television station licensed to Minneapolis, Minnesota, United States and serving the Twin Cities television market. The station is owned by the Sinclair Broadcast Group. WUCW's studios are located in the Pence Building on 8th Street and Hennepin Avenue in downtown Minneapolis, and its transmitter is located at the Telefarm site in Shoreview. The station is perhaps best known for originating the cult cable television series Mystery Science Theater 3000, which began as a locally produced program when channel 23 was an independent station.
HD Radio (HDR) is a trademarked term for the in-band on-channel (IBOC) digital radio technology used by AM and FM radio stations mostly in the United States, Canada and Mexico, with a few implementations outside North America. The system transmits additional digital data associated with an existing radio station's standard analog signals, rebroadcasting the same signal in a digital format with less noise. The digital data may also include up to three additional digital radio signals, which can be used to broadcast other stations within the same frequency allocation.
RSK Sanyo Broadcasting Co., Ltd. is a Japanese television and radio broadcaster in Okayama and Kagawa. The abbreviation, RSK originates in the former name in Japanese. It is affiliated with Japan Radio Network (JRN), National Radio Network (NRN), and Japan News Network (JNN).
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. Therefore, FM is used for most broadcasts of music or general audio. FM radio stations use the very high frequency range of radio frequencies.
Munhwa Broadcasting Corporation is one of the leading South Korean television and radio network companies. Munhwa is the Sino-Korean word for "culture". Its flagship terrestrial television station MBC TV is Channel 11 (LCN) for Digital.
KVAL-TV, virtual and VHF digital channel 13, is a CBS-affiliated television station licensed to Eugene, Oregon, United States. The station is owned by the Sinclair Broadcast Group, which also operates dual NBC/CW+ affiliate KMTR under a shared services agreement (SSA) with owner Roberts Media, LLC. The two stations share studios and transmitter facilities on Blanton Road in Eugene. KMTR maintained separate facilities on International Court in Springfield, Oregon, until 2020 when the station relocated to KVAL's building; master control and some internal operations for KMTR were based at the KVAL studios.
A television station is a set of equipment managed by a business, organisation or other entity, such as an amateur television (ATV) operator, that transmits video content and audio content via radio waves directly from a transmitter on the earth's surface to any number of tuned receivers simultaneously.
KNSN-TV, virtual channel 21, is a primary sports-formatted independent and secondary MyNetworkTV-affiliated television station licensed to Reno, Nevada, United States. Owned by Deerfield Media, the station is operated under joint sales and shared services agreements (JSA/SSA) by the Sinclair Broadcast Group, making it sister to Fox affiliate KRXI-TV, channel 11, and NBC affiliate KRNV-DT, channel 4. However, Sinclair effectively owns KRNV as the majority of Cunningham's stock is owned by the family of deceased group founder Julian Smith. The three stations share studios on Vassar Street in Reno; KNSN's transmitter is located on Red Hill between US 395 and SR 445 in Sun Valley. On cable, KNSN is available on Charter Spectrum channel 7 and in high definition on digital channel 787.
K14RK-D, virtual channel 38, is a low-powered television station licensed to Phoenix, Arizona, United States. The station is owned by Adrián Quiñones. Its transmitter is located on South Mountain.
K41OI was a television station in Jefferson City, MO. As a TBN owned-and-operated station, it was a repeater that broadcast programming from the Trinity Broadcasting Network, via satellite. The station broadcast its analog signal on UHF channel 41.
DYSS-TV, channel 7, is a commercial VHF television station owned and operated by GMA Network Inc.. Its studios and offices are located at the GMA Skyview Complex, Nivel Hills, Apas, Cebu City, while its transmitter facilities is situated at Mt. Busay, Brgy. Bonbon, Cebu City.
References
 | This article about a television station in California is a stub. You can help Wikipedia by expanding it. |