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WGN-AM
WGN (720 kHz) is a commercial AM radio station in Chicago, Illinois, with studios on the 18th floor of 303 East Wacker Drive in the Chicago Loop. WGN has a news/talk format, along with broadcasts of Chicago Blackhawks hockey and Northwestern University football and basketball. WGN is the only radio station owned by Nexstar Media Group, which primarily owns television stations. From 1924 to 2014, WGN was owned by Tribune Media, which also owned the ''Chicago Tribune'', whose "World's Greatest Newspaper" slogan served as the basis for the WGN call sign. WGN is a clear channel, Class A station, broadcasting at the maximum power of 50,000 watts, and using a non-directional antenna. The transmitter is on Martingdale Road in Elk Grove Village, near Interstate 290. During daytime hours, near-perfect ground conductivity gives WGN at least secondary coverage to almost two-thirds of Illinois (as far south as Springfield) as well as large slices of Wisconsin, Indiana, Michigan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WGN-TV
WGN-TV (channel 9) is an Independent station (North America), independent television station in Chicago, Chicago, Illinois, United States. Owned by Nexstar Media Group, it is sister station, sister to the company's sole radio property, talk radio, news/talk/sports radio, sports station WGN (AM), WGN (720 AM). WGN-TV's studios are located on West Bradley Place in Chicago's North Center, Chicago, North Center community; as such, it is the only major commercial television station in Chicago which bases its main studio outside Chicago Loop, the Loop. Its transmitter is located atop the Willis Tower in the Loop. Like concept progenitor WPCH-TV, WTBS in Atlanta, WGN-TV was a pioneering superstation; on November 8, 1978, it became the second U.S. television station to be made available via communications satellite, satellite transmission to cable and Satellite television, direct-broadcast satellite subscribers nationwide. Later renamed WGN America, the former superstation feed was con ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WGN 720am Logo
WGN may refer to: *"World's Greatest Newspaper", former slogan of the ''Chicago Tribune'' and the namesake for the WGN broadcasting outlets in Chicago, Illinois. **WGN (AM), a radio station (720 AM) licensed to Chicago, Illinois, United States ** WGN-TV, a television station (channel 9.1 virtual/19 digital) licensed to Chicago, Illinois, United States ** WGN America, the former name of NewsNation, a cable television network based in Chicago, Illinois, United States ** WFMT, a radio station (98.7 FM) licensed to Chicago, Illinois, United States, which operates on the frequency formerly belonging to the ''Tribune''-owned FM station that used the call sign WGNB from 1945 until 1953 * Shaoyang Wugang Airport, IATA code WGN * White Gaussian noise ** Additive white Gaussian noise Additive white Gaussian noise (AWGN) is a basic noise model used in information theory to mimic the effect of many random processes that occur in nature. The modifiers denote specific characteristics: * ''Addit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one hertz is the reciprocal of one second. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. Hertz are 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 of the energy of a photon, via the Planck relation ''E'' = ''hν'', where ''E'' is the photon's energy, ''ν'' is its f ... [...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 distinguis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear-channel Station
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 enforced through a series of treaties and statutory laws. Known as Class A stations since 1982, 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 an effective radiated power of at least 10,000 watts to retain their status. Nearly all such stations in the United States, Canada and The Baham ... [...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 onboard ships at sea. These were not globally unique, so a one-letter company identifier (for instance, 'M' and two letters as a Marconi sta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Tribune
The ''Chicago Tribune'' is a daily newspaper based in Chicago, Illinois, United States, owned by Tribune Publishing. Founded in 1847, and formerly self-styled as the "World's Greatest Newspaper" (a slogan for which WGN radio and television are named), it remains the most-read daily newspaper in the Chicago metropolitan area and the Great Lakes region. It had the sixth-highest circulation for American newspapers in 2017. In the 1850s, under Joseph Medill, the ''Chicago Tribune'' became closely associated with the Illinois politician Abraham Lincoln, and the Republican Party's progressive wing. In the 20th century under Medill's grandson, Robert R. McCormick, it achieved a reputation as a crusading paper with a decidedly more American-conservative anti- New Deal outlook, and its writing reached other markets through family and corporate relationships at the '' New York Daily News'' and the '' Washington Times-Herald.'' The 1960s saw its corporate parent owner, Tribune Company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
College Football
College football (french: Football universitaire) refers to gridiron football played by teams of student athletes. It was through college football play that American football in the United States, American football rules first gained popularity in the United States. Unlike most other sports in North America, no official minor league farm team, farm organizations exist in American or Canadian football. Therefore, college football is generally considered to be the second tier of American and Canadian football; one step ahead of High school football, high school competition, and one step below professional competition (the National Football League, NFL). In some areas of the US, especially the South and the Midwest, college football is more popular than professional football, and for much of the 20th century college football was seen as more prestigious. A player's performance in college football directly impacts his chances of playing professional football. The best collegiate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Northwestern University
Northwestern University is a private research university in Evanston, Illinois. Founded in 1851, Northwestern is the oldest chartered university in Illinois and is ranked among the most prestigious academic institutions in the world. Chartered by the Illinois General Assembly in 1851, Northwestern was established to serve the former Northwest Territory. The university was initially affiliated with the Methodist Episcopal Church but later became non-sectarian. By 1900, the university was the third largest university in the United States. In 1896, Northwestern became a founding member of the Big Ten Conference, and joined the Association of American Universities as an early member in 1917. The university is composed of eleven undergraduate, graduate, and professional schools, which include the Kellogg School of Management, the Pritzker School of Law, the Feinberg School of Medicine, the Weinberg College of Arts and Sciences, the Bienen School of Music, the McCormick ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Blackhawks
The Chicago Blackhawks (spelled Black Hawks until 1986, and known colloquially as the Hawks) are a professional ice hockey team based in Chicago. The Blackhawks compete in the National Hockey League (NHL) as a member of the Central Division in the Western Conference and have won six Stanley Cup championships since their founding in 1926. They are one of the "Original Six" NHL teams, along with the Detroit Red Wings, Montreal Canadiens, Toronto Maple Leafs, Boston Bruins, and New York Rangers. Since , the team has played their home games at the United Center, which they share with the National Basketball Association's Chicago Bulls; both teams previously played at the now-demolished Chicago Stadium. The Blackhawks' original owner was Frederic McLaughlin, a "hands-on" owner who fired many coaches during his ownership and led the team to win two Stanley Cup titles in 1934 and 1938, respectively. After McLaughlin's death in 1944, the team came under the ownership of the N ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Loop
The Loop, one of Chicago's 77 designated community areas, is the central business district of the city and is the main section of Downtown Chicago. Home to Chicago's commercial core, it is the second largest commercial business district in North America and contains the headquarters and regional offices of several global and national businesses, retail establishments, restaurants, hotels, and theaters, as well as many of Chicago's most famous attractions. It is home to Chicago's City Hall, the seat of Cook County, and numerous offices of other levels of government and consulates of foreign nations. The intersection of State Street and Madison Street, located in the area, is the origin of the address system of Chicago's street grid. Most of Grant Park's 319 acres (1.29 km2) are in the eastern section of the community area. The Loop community area is bounded on the north and west by the Chicago River, on the east by Lake Michigan, and on the south by Roosevelt Road. The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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