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WMAQ (AM)
WSCR (670 AM radio, AM) – branded 670 The Score – is a Commercial radio, commercial sports radio station, licensed to Chicago, Illinois, which serves the Chicago metropolitan area. Owned by Audacy, Inc., WSCR is a clear-channel station with extended nighttime range in most of the Central United States and part of the Eastern United States. WSCR is Chicago's oldest surviving radio station, although it is the third in the Chicago market to use the WSCR call sign and "Score" branding. Studios are located at Two Prudential Plaza in the Chicago Loop, while the station transmitter site is in suburban Bloomingdale, Illinois, Bloomingdale, Diplexer, diplexed with co-owned WBBM (AM), WBBM. Besides its main analog transmission, WSCR transmits continuouslyDue to interference concerns, most AM stations use HD Radio only during daytime hours, per Barry McLarnon's AM IBOC page (see references). over a single HD Radio channel using the in-band on-channel standard, simulcasts over the seco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago, Illinois
Chicago is the List of municipalities in Illinois, most populous city in the U.S. state of Illinois and in the Midwestern United States. With a population of 2,746,388, as of the 2020 United States census, 2020 census, it is the List of United States cities by population, third-most populous city in the United States after New York City and Los Angeles. As the county seat, seat of Cook County, Illinois, Cook County, the List of the most populous counties in the United States, second-most populous county in the U.S., Chicago is the center of the Chicago metropolitan area, often colloquially called "Chicagoland" and home to 9.6 million residents. Located on the shore of Lake Michigan, Chicago was incorporated as a city in 1837 near a Chicago Portage, portage between the Great Lakes and the Mississippi River, Mississippi River watershed. It grew rapidly in the mid-19th century. In 1871, the Great Chicago Fire destroyed several square miles and left more than 100,000 homeless, but ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WUSN
WUSN (99.5 FM) is a country music radio station in Chicago, Illinois. Owned by Audacy, Inc. and branded as "US✶99", it is based at Two Prudential Plaza in the Chicago Loop, Loop, and transmits from atop the John Hancock Center with an HD Radio signal. History Founding and classical music era The station began broadcasting on February 2, 1940, as experimental station W9XEN, licensed to Chicago-based radio/television manufacturer Zenith Electronics, Zenith Radio Corporation. In May 1940, the Federal Communications Commission (FCC) announced the establishment, effective January 1, 1941, of an FM radio band operating on 40 channels spanning 42–50 MHz. On October 31, 1940, the List of the initial commercial FM station assignments issued by the Federal Communications Commission on October 31, 1940, first fifteen construction permits for commercial FM stations were issued, including one to Zenith for a station in Chicago at 45.1 MHz, which was issued the call sign W51 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
In-band On-channel
In-band on-channel (IBOC) is a hybrid method of transmitting digital radio and analog radio broadcast signals simultaneously on the same frequency. The name refers to the new digital signals being broadcast in the same AM or FM band (in-band), and associated with an existing radio channel (on-channel). By utilizing additional digital subcarriers or sidebands, digital information is multiplexed on existing signals, thus avoiding re-allocation of the broadcast bands. IBOC relies on unused areas of the existing spectrum to send its signals. This is particularly useful in North America style FM, where channels are widely spaced at 200 kHz but use only about 50 kHz of that bandwidth for the audio signal. In most countries, FM channel spacing may be as close as 100 kHz, and on AM it is only 10 kHz. While these all offer some room for additional digital broadcasts, most attention on IBOC is in the FM band in North American systems; in Europe and many other cou ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
HD Radio
HD Radio (HDR) is a trademark for in-band on-channel (IBOC) digital radio broadcast technology. HD radio generally simulcast, simulcasts an existing analog radio station in digital format with less noise and with additional text information. HD Radio is used primarily by FM broadcasting, FM radio stations in the United States, U.S. Virgin Islands, Canada, Mexico and the Philippines, with a few implementations outside North America. HD Radio transmits the digital signals in unused portions of the same band as the analog AM and FM signals. As a result, radios are more easily designed to pick up both signals, which is why the HD in HD Radio is sometimes referred to stand for "hybrid digital", not "high definition". Officially, HD is not intended to stand for any term in HD Radio, it is simply part of iBiquity's trademark, and does not have any meaning on its own. HD Radios tune into the station's analog signal first and then look for a digital signal. The European DRM system shares c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Analog Transmission
Analog transmission is a transmission method of conveying information using a continuous signal which varies in amplitude, phase, or some other property in proportion to that information. It could be the transfer of an analog signal, using an analog modulation method such as frequency modulation (FM) or amplitude modulation (AM), or no modulation at all. Some textbooks also consider passband data transmission using a digital modulation method such as ASK, PSK and QAM, i.e. a sinewave modulated by a digital bit-stream, as analog transmission and as an analog signal. Others define that as digital transmission and as a digital signal. Baseband data transmission using line codes, resulting in a pulse train, are always considered as digital transmission, although the source signal may be a digitized analog signal. Methods Analog transmission can be conveyed in many different fashions: * Optical fiber * Twisted pair or coaxial cable * Radio * Underwater acoustic communication The ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diplexer
A diplexer is a passive device that implements frequency-domain multiplexing. Two ports (e.g., L and H) are multiplexed onto a third port (e.g., S). The signals on ports L and H occupy disjoint frequency bands. Consequently, the signals on L and H can coexist on port S without interfering with each other. Typically, the signal on port L will occupy a single low frequency band and the signal on port H will occupy a higher frequency band. In that situation, the diplexer consists of a lowpass filter connecting ports L and S and high pass filter connecting ports H and S. Ideally, all the lowband signal power on port L is transferred to the S port and vice versa. All the highband signal power on port H is transferred to port S and vice versa. Ideally, the separation of the signals is complete. None of the low band signal is transferred from the L port to the H port. In the real world, some power will be lost, and some signal power will leak to the wrong port. The diplexer, being ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bloomingdale, Illinois
Bloomingdale is a village in DuPage County, Illinois, DuPage County, Illinois, United States, settled in 1833, and 25 miles northwest of downtown Chicago. The population was 22,382 at the 2020 census. History Bloomingdale is one of the earliest villages settled in what is now DuPage County. The Meacham family settled here in 1833, and by the end of the following year, 12 to 15 families had settled in the locality. It was originally named Meacham's Grove. The community was served by the Chicago-Galena Highway, modern day Lake Street (Chicago), Lake Street. It became an important stop for stage coaches and westward travelers. Originally a Cook County, Illinois, Cook County settlement, it was annexed by DuPage County in 1839. The northern part of the village wanted to develop commercially while the southern part wished to remain a farming community. In 1923, the village Secession in the United States, split to accommodate this—the northern portion of the town was incorporated as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago Loop
The Loop is Chicago's central business district and one of the city's 77 municipally recognized Community areas in Chicago, community areas. Located at the center of downtown Chicago on the shores of Lake Michigan, it is the second-largest business district in North America, after Midtown Manhattan in New York City. The world headquarters and regional offices of several global and national businesses, retail establishments, restaurants, hotels, museums, theaters, and libraries—as well as many of Chicago's most famous attractions—are located in the Loop. The district also hosts Chicago's Chicago City Hall, City Hall, the seat of Cook County, Illinois, Cook County, offices of the state of Illinois, United States federal offices, as well as several foreign consulates. The intersection of State Street (Chicago), State Street and Madison Street (Chicago), Madison Street in the Loop is the origin point for the address system on Roads and expressways in Chicago, Chicago's street gri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Two Prudential Plaza
Two Prudential Plaza is a 64-story skyscraper located in the Chicago Loop, Loop area of Chicago, Illinois. At tall, it is the seventh-tallest building in Chicago and the List of tallest buildings in the United States, 28th-tallest in the U.S., being only five feet from 1,000 feet, making it the closest of any building under 1,000. Built in 1990, the building was designed by the firm Loebl Schlossman & Hackl, with Stephen T. Wright as the principal in charge of design. It has received eight awards, including winning the Best Structure Award from the Structural Engineers Association of Illinois in 1995. History Construction started in 1988, and Two Prudential Plaza was completed in 1990. At the time of completion, Two Prudential was the world's tallest reinforced concrete building. Its distinctive shape features stacked chevron Building setback, setbacks on the north and south sides, a pyramidal peak rotated 45°, and an spire. The building is attached to One Prudential Plaza ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clear-channel Station
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] |
Sports Radio
Sports radio (or sports talk radio) is a radio format devoted entirely to discussion and broadcasting of sport, sporting events. A widespread programming genre that has a narrow audience appeal, sports radio is characterized by an often-low comedy, boisterous on-air style and extensive debate and analysis by both :wikt:host, hosts and caller (telecommunications), callers. Many sports talk stations also carry play-by-play (live commentary) of local sports teams as part of their regular programming. History In 1955, WHN New York launched the first regular sports talk program featuring a broadcaster/journalist roundtable that aired before and after Brooklyn Dodgers games. By the early 1960s, sports talk content, ranging from individual commentary to roundtable discussions, began appearing in major US markets, initially tied to play-by-play broadcasts but gradually developing unique styles and characters. Art Rust Jr. launched New York’s first interactive call-in show (WMCA) in 19 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Commercial Radio
Commercial broadcasting (also called private broadcasting) is the broadcasting of television programs and radio programming by privately owned corporate media, as opposed to state sponsorship, for example. It was the United States' first model of radio (and later television) during the 1920s, in contrast with the public television model during the 1930s, 1940s, and 1950s, which prevailed worldwide, except in the United States, Mexico, and Brazil, until the 1980s. Features Advertising Commercial broadcasting is primarily based on the practice of airing radio advertisements and television advertisements for profit. This is in contrast to public broadcasting, which receives government subsidies and usually does not have paid advertising interrupting the show. During pledge drives, some public broadcasters will interrupt shows to ask for donations. In the United States, non-commercial educational (NCE) television and radio exist in the form of community radio; however, premium ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
