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Daytimer
A clear-channel station is a North American AM radio station that has the highest level of protection from interference from other stations, particularly from nighttime skywave signals. This classification exists to ensure the viability of cross-country or cross-continent radio service enforced through a series of treaties and statutory laws. Known as Class A stations since the 1983 adoption of the Regional Agreement for the Medium Frequency Broadcasting Service in Region 2 (Rio Agreement), they are occasionally still referred to by their former classifications of Class I-A (the highest classification), Class I-B (the next highest class), or Class I-N (for stations in Alaska too far away to cause interference to the primary clear-channel stations in the lower 48 states). The term "clear-channel" is used most often in the context of North America and the Caribbean, where the concept originated. Since 1941, these stations have been required to maintain a transmitter power output ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CJDL-FM
CJDL-FM (107.3 MHz, ''Country 107.3'') is a radio station licensed to Tillsonburg, Ontario. Owned by Rogers Radio, a division of Rogers Sports & Media, it broadcasts a country format. The station was established in 1955 as the AM station CKOT, before migrating to FM in 2007. It had been operated by the locally owned Tillsonburg Broadcasting Company until 2017, when it was sold to Rogers Media. History The station was originally licensed on April 26, 1955, and began broadcasts four days later at 1510 AM. The station was owned by John B. Lamers Sr., Ken Orton, and four other shareholders under the name of Tillsonburg Broadcasting Company, Limited. The transmitter and two high towers were located in Lot 16, Concession 2, of Middleton Township in Norfolk County. The station was a daytimer (operating only during the day) for much of its existence and was also the last remaining Canadian daytime-only station still in operation until it shut down its AM side in 2013. In 1958, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WUFO
WUFO (1080 kHz) is a commercial AM radio station licensed to Amherst, New York, and serving the Buffalo metropolitan area. It is owned by the Visions Multi Media Group headed by Sheila. L. Brown and it broadcasts a hybrid Urban AC and Classic Hip Hop radio format. Its studios are on Broadway Avenue in Buffalo. WUFO transmits 1,000 watts non-directional. WUFO is a daytimer station because 1080 AM is a clear-channel frequency reserved for Class A stations WTIC Hartford and KRLD Dallas, so WUFO must sign off at sunset to avoid interference. The transmitter is on Genesee Street in Cheektowaga. Programming is heard around the clock on 35-watt FM translator W243DX at 96.5 MHz. It uses the FM translator frequency in its moniker, "Power 96.5." History WPDQ, WKEN and WMAK The roots of today's WUFO can actually be traced back to 1925, with the founding of WPDQ in Kenmore, New York, a Buffalo suburb. WPDQ was owned by Hiram Turner and Nelson P. Baker (not related to venerable ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Wave
Medium wave (MW) is a part of the medium frequency (MF) radio band used mainly for AM radio broadcasting. The spectrum provides about 120 channels with more limited sound quality than FM stations on the FM broadcast band. During the daytime, reception is usually limited to more local stations, though this is dependent on the signal conditions and quality of radio receiver used. Improved signal propagation at night allows the reception of much longer distance signals (within a range of about 2,000 km or 1,200 miles). This can cause increased interference because on most channels multiple transmitters operate simultaneously worldwide. In addition, amplitude modulation (AM) is often more prone to interference by various electronic devices, especially power supplies and computers. Strong transmitters cover larger areas than on the FM broadcast band but require more energy and longer antennas. Digital modes are possible but had not yet reached momentum. MW was the main radio b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of North American Broadcast Station Classes
This is a list of broadcast station classes applicable in much of North America under international agreements between the United States, Canada and Mexico. Effective radiated power (ERP) and height above average terrain (HAAT) are listed unless otherwise noted. All radio and television stations within of the US-Canada or US-Mexico border must get approval by both the domestic and foreign agency. These agencies are Industry Canada/ Canadian Radio-television and Telecommunications Commission (CRTC) in Canada, the Federal Communications Commission (FCC) in the US, and the Federal Telecommunications Institute (IFT) in Mexico. AM Station class descriptions All domestic (United States) AM stations are classified as A, B, C, or D. * A (formerly I) — clear-channel stations — 10 kW to 50 kW, 24 hours. **Class A stations are only protected within a radius of the transmitter site. **The old Class I was divided into three: Class I-A, I-B and I-N. NARBA disting ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
General Order 40
The Federal Radio Commission's (FRC) General Order 40, dated August 30, 1928, described the standards for a sweeping reorganization of radio broadcasting in the United States. This order grouped the AM radio band transmitting frequencies into three main categories, which became known as Clear Channel, Regional, and Local. It also included provisions for coordination with Canadian station assignments. The majority of the reassignments resulting from the plan's implementation went into effect on November 11, 1928. Background Radio transmissions in the United States were originally regulated by the Department of Commerce, as authorized by the Radio Act of 1912. The first formal regulations governing broadcasts intended for the general public were adopted effective December 1, 1921. This initially established just two transmitting wavelengths: 360 meters (833 kHz) for "entertainment" broadcasts, and 485 meters (619 kHz) for "market news and weather reports". The number of bro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Groundwave
Ground wave is a mode of radio propagation that consists of currents traveling through the earth. Ground waves propagate parallel to and adjacent to the surface of the Earth, and are capable of covering long distances by diffracting around the Earth's curvature. This radiation is also known as the Norton surface wave, or more properly the Norton ground wave, because ground waves in radio propagation are not confined to the surface. Groundwave contrasts with line-of-sight propagation that requires no medium, and skywave via the ionosphere. Ground wave is important for radio signals below 30 MHz, but is generally insignificant at higher frequencies where line-of-sight propagation dominates. AM and longwave broadcasting, navigation systems such as LORAN, low-frequency time signals, non-directional beacons, and short-range HF communications all make use of it. Range depends on frequency and ground conductivity, with lower frequencies and higher ground conductivity permitti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watrous, Saskatchewan
Watrous is a town in the Canadian province of Saskatchewan. It is east of Saskatoon and has an economy that is based on agriculture and tourism because of its proximity to Manitou Beach, home of the Mineral Spa and Danceland dance Hall (known as the "Home of the World Famous Dance Floor Built on Horsehair"). Watrous was named after Frank Watrous Morse. The town has several restaurants, a hospital, medical clinic, elementary school, high school, community college, bowling alley, RCMP detachment, banks, a grocery store, and motels. Watrous is notable for being the location of the transmitter of CBK, CBC Radio One's primary station in Saskatchewan. The transmitter was originally located at Watrous in 1939 in order to cover most of the Prairie Provinces with a strong nighttime signal (the station, then as now, is a 50,000-watt clear-channel station). It was also intended to serve most of the province's populated area, including Regina and Saskatoon, from one transmitter. Whil ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
CBK (AM)
CBK (540 Hertz, kHz) is a Canadian Public broadcasting, public radio station city of license, licensed to Watrous, Saskatchewan. It broadcasts the CBC Radio One network as a List of North American broadcast station classes, Class A clear-channel station, clear-channel AM broadcasting, AM station powered at 50,000 watts around the clock from a omnidirectional antenna, non-directional antenna near Watrous. Its studios are located at the CBC's broadcast centre at 2440 Broad Street in Regina, Saskatchewan, Regina, with an additional bureau in the Saskatoon Co-op building on 4th Avenue South in Saskatoon. The Regina facility also houses CBK-FM and CBKT-DT. In Regina, a nested broadcast relay station, rebroadcaster, CBKR-FM 102.5 Hertz, MHz, simulcasts CBK for listeners who may have trouble receiving the 540 AM signal amid downtown office and apartment buildings. Due to CBK's low frequency, transmitter power, and Saskatchewan's flat land (with excellent ground conductivity), its daytim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
540 AM
The following radio stations broadcast on AM frequency 540 kHz: 540 AM is a Canadian and Mexican clear-channel frequency. CBK, Watrous-Regina, Saskatchewan, and XEWA San Luis Potosí, Mexico, share Class A status on 540 kHz. Because 540 kHz is a multiple of both 9 and 10, the frequency is available for use by broadcast stations in all three ITU regions. Argentina * LRA14 in Santa Fe, Santa Fe. * LRA25 in Tartagal, Salta. * LU17 in Puerto Madryn, Chubut. * Radio Pasión in Buenos Aires. * Presidente Perón in Buenos Aires. Australia * 4QL in Longreach, Queensland * 7SD in Scottsdale, Tasmania Belgium * ORU Brussels Brazil * ZYH295 in Manaus, Amazonas * ZYH610 in Canindé, Ceará * ZYH755 in Goiânia, Goiás * ZYH894 in Barra do Corda, Maranhão * ZYJ450 in Rio de Janeiro, Rio de Janeiro * ZYJ778 in Rio do Sul, Santa Catarina * ZYK226 in Canoas, Rio Grande do Sul * ZYK322 in Santo Ângelo, Rio Grande do Sul * ZYK734 in Sumaré, São Paulo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Of License
In U.S., Canadian, and Mexican broadcasting, a city of license or community of license is the community that a radio station or television station is officially licensed to serve by that country's broadcast regulator. In North American broadcast law, the concept of ''community of license'' dates to the early days of AM radio broadcasting. The requirement that a broadcasting station operate a ''main studio'' within a prescribed distance of the community which the station is licensed to serve appears in U.S. law as early as 1939. Various specific obligations have been applied to broadcasters by governments to fulfill public policy objectives of broadcast localism, both in radio and later also in television, based on the legislative presumption that a broadcaster fills a similar role to that held by community newspaper publishers. United States In the United States, the Communications Act of 1934 requires that "the Commission shall make such distribution of licenses, frequenci ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Call Sign
In broadcasting and radio communications, a call sign (also known as a call name or call letters—and historically as a call signal—or abbreviated as a call) is a unique identifier for a transmitter station. A call sign can be formally assigned by a government agency, informally adopted by individuals or organizations, or even cryptographically encoded to disguise a station's identity. The use of call signs as unique identifiers dates to the landline railroad telegraph system. Because there was only one telegraph line linking all railroad stations, there needed to be a way to address each one when sending a telegram. In order to save time, two-letter identifiers were adopted for this purpose. This pattern continued in radiotelegraph operation; radio companies initially assigned two-letter identifiers to coastal stations and stations on board ships at sea. These were not globally unique, so a one-letter company identifier (for instance, 'M' and two letters as a Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilohertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), often described as being equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose formal expression in terms of SI base units is 1/s or s−1, meaning that one hertz is one per second or the reciprocal of one second. It is used only in the case of periodic events. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. For high frequencies, the unit is commonly expressed in multiples: kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of the unit's most common uses are in the description of periodic waveforms and musical tones, particularly those used in radio- and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
