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WCHA (AM)
WCHA (800 kHz) is a commercial AM radio station licensed to Chambersburg, Pennsylvania, and serving Franklin County, Pennsylvania. It simulcasts an oldies format with WHAG in Hagerstown, Maryland. WCHA and WHAG are owned and operated by Alpha Media. Most programming comes from the True Oldies Channel, programmed and hosted by New York City DJ Scott Shannon. WCHA also carries Penn State football and Pittsburgh Steelers football. By day, WCHA is powered at 1,000 watts non-directional. Because 800 AM is a Mexican clear channel frequency reserved for Class A station XEROK in Ciudad Juarez, WCHA reduces power to 196 watts at night to avoid interference. WCHA is also heard on 250-watt FM translator W242BY at 96.3 MHz. History On September 1, 1989, WCHA began broadcasting in C-QUAM AM stereo AM stereo is a term given to a series of mutually incompatible techniques for radio broadcasting stereo audio in the AM band in a manner that is compatible with standard AM receiver ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chambersburg, Pennsylvania
Chambersburg is a borough in and the county seat of Franklin County, Pennsylvania, Franklin County, in the South Central Pennsylvania, South Central region of Pennsylvania, United States. It is in the Cumberland Valley, which is part of the Great Appalachian Valley, and north of Maryland and the Mason-Dixon line and southwest of Harrisburg, Pennsylvania, Harrisburg, the state capital. According to the United States Census Bureau, Chambersburg's 2020 population was 21,903. When combined with the surrounding Greene Township, Franklin County, Pennsylvania, Greene, Hamilton Township, Franklin County, Pennsylvania, Hamilton, and Guilford Township, Pennsylvania, Guilford Townships, the population of Greater Chambersburg is 66,340 people. The Chambersburg, PA Metropolitan Statistical Area includes surrounding Franklin County, and in 2010 included 149,618 people. According to the Pennsylvania Department of Community and Economic Development, Chambersburg Borough is the thirteenth-larg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hagerstown, Maryland
Hagerstown is a city in Washington County, Maryland, United States, and its county seat. The population was 43,527 at the 2020 United States census, 2020 census. Hagerstown ranks as Maryland's List of municipalities in Maryland, sixth-most populous incorporated city and is the most populous city in the Western Maryland, Maryland Panhandle. Hagerstown anchors the Hagerstown metropolitan area extending into West Virginia. It makes up the northwesternmost portion of the Washington–Baltimore combined statistical area in the heart of the Great Appalachian Valley. The population of the metropolitan area in 2020 was 293,844. Greater Hagerstown was the fastest-growing metropolitan area in the state of Maryland and among the fastest growing in the United States, as of 2009. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AM Stereo
AM stereo is a term given to a series of mutually incompatible techniques for radio broadcasting stereo audio in the AM band in a manner that is compatible with standard AM receivers. There are two main classes of systems: independent sideband (ISB) systems, promoted principally by American broadcast engineer Leonard R. Kahn; and quadrature amplitude modulation (QAM) multiplexing systems (conceptually closer to FM stereo). Initially adopted by many commercial AM broadcasters in the mid to late 1980s, AM stereo broadcasting soon began to decline due to a lack of receivers (most "AM/FM stereo" radios only receive in stereo on FM), a growing exodus of music broadcasters to FM, concentration of ownership of the few remaining stations in the hands of large corporations and the removal of music from AM stations in favor of news/talk or sports broadcasting. By 2001, most of the former AM stereo broadcasters were no longer stereo or had left the AM band entirely. History Early ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C-QUAM
C-QUAM (Compatible QUadrature Amplitude Modulation) is the method of AM stereo broadcasting used in Canada, the United States and most other countries. It was invented in 1977 by Norman Parker, Francis Hilbert, and Yoshio Sakaie, and published in an IEEE journal. Using circuitry developed by Motorola, C-QUAM uses quadrature amplitude modulation (QAM) to encode the stereo separation signal. This extra signal is then stripped down in such a way that it is compatible with the envelope detector of older receivers, hence the name C-QUAM for Compatible. A 25 Hz pilot tone is added to trigger receivers; unlike its counterpart in FM radio, this carrier is not necessary for the reconstruction of the original audio sources. Description The C-QUAM signal is composed of two distinct modulation stages: a conventional AM version and a compatible quadrature PM version. Stage 1 provides the transmitter with a summed L+R mono audio input. This input is precisely the same as conventional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
FM Translator
A broadcast relay station, also known as a satellite station, relay transmitter, broadcast translator (U.S.), re-broadcaster (Canada), repeater ( two-way radio) or complementary station (Mexico), is a broadcast transmitter which repeats (or transponds) the signal of a radio or television station to an area not covered by the originating station. These expand the broadcast range of a television or radio station beyond the primary signal's original coverage or improves service in the original coverage area. The stations may be (but are not usually) used to create a single-frequency network. They may also be used by an AM or FM radio station to establish a presence on the other band. Relay stations are most commonly established and operated by the same organisations responsible for the originating stations they repeat. Depending on technical and regulatory restrictions, relays may also be set up by unrelated organisations. Types Translators In its simplest form, a broadcast tr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ciudad Juarez ''
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Ciudad () is the Spanish word for "city". Ciudad or La Ciudad may also refer to: * La Ciudad (archaeological site), Hohokam ruins in Phoenix, Arizona * La Ciudad, district of Durango City, Mexico * ''La ciudad'', a novel by Mario Levrero published in 1970 * La Ciudad, the Spanish title of the 1998 film ''The City'' * ''Ciudad'' (film), directed by Balthasar Burkhard * Ciudad (band), a Philippine band * La Ciudad, nickname for Mexico City, Mexico * "La Ciudad", a song by Odesza from their 2017 album ''A Moment Apart ''A Moment Apart'' is the third studio album by the American electronic music duo Odesza, released on 8 September 2017 through Counter, Ninja Tune and the duo's own label, Foreign Family Collective. It is the duo's first album in three years af ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
XEROK-AM
XEROK-AM (800 kHz) is a commercial radio station in Ciudad Juárez, Chihuahua, Mexico. It is licensed to operate with a power of 150,000 watts on a carrier frequency of 800 kHz, although its new transmitter outputs 50,000 watts. XEROK is the dominant Class A station on 800 AM, a Mexican clear channel frequency. The station had a colorful history as a border blaster, aiming its programming at listeners in the United States, when at night, its 150,000-watt signal could be easily heard in many parts of the Southwest. XEROK has been silent since April 4, 2022, due to the dismantling of its transmitter facility. History The licensing history for XEROK begins not in Ciudad Juárez but in Piedras Negras, Coahuila, away, with the authorization for XEPNA (more commonly XEPN) 660, made to the Compañia Radiodifusora de Piedras Negras (Piedras Negras Broadcasting Company). The callsign changed to XELO in 1936, authorized for 50 kW day from Piedras Negras but on 1110 k ... [...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] |
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] |
800 AM
The following radio stations broadcast on AM frequency 800 kHz: 800 AM is a Mexican clear-channel frequency; XEROK Ciudad Juárez, is the dominant station on 800 AM. See also List of broadcast station classes. In Argentina * LT43 in Charata, Chaco * LU15 in Viedma, Río Negro * LV23 in General Alvear, Mendoza * Wajzugun in San Martín de los Andes, Neuquén In Brazil * Rádio MEC in Rio de Janeiro, Rio de Janeiro and Brasília, Federal District In Canada In Caribbean Netherlands * PJB3 in Kralendijk, Bonaire In Mexico Stations in bold are clear-channel stations. * XEAN-AM in Ocotlán, Jalisco * XEERG-AM in Ojo de Agua, Nuevo León * XEQT-AM in Veracruz, Veracruz Veracruz (), also known as Heroica Veracruz, is a major port city and municipal seat for the surrounding municipality of Veracruz on the Gulf of Mexico and the most populous city in the Mexican state of Veracruz. The city is located along the c ... * XEROK-AM in Ciudad Juárez, Ciudad Ju� ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Omnidirectional Antenna
In radio communication, an omnidirectional antenna is a class of antenna (electronics), antenna which radiates equal radio power in all directions perpendicular to an Cartesian coordinate system, axis (azimuthal directions), with power varying with angle to the axis (elevation angle), declining to zero on the axis. When graphed in three dimensions ''(see graph)'' this radiation pattern is often described as ''doughnut-shaped''. This is different from an isotropic radiator, isotropic antenna, which radiates equal power in ''all'' directions, having a ''spherical'' radiation pattern. Omnidirectional antennas oriented vertically are widely used for nondirectional antennas on the surface of the Earth because they radiate equally in all horizontal directions, while the power radiated drops off with elevation angle so little radio energy is aimed into the sky or down toward the earth and wasted. Omnidirectional antennas are widely used for radio broadcasting antennas, and in mobile ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Penn State Football
The Penn State Nittany Lions team represents the Pennsylvania State University in college football. The Nittany Lions compete in the NCAA Division I Football Bowl Subdivision as a member of the Big Ten Conference, which they joined in 1993 after playing as an Independent from 1892 to 1992. Established in 1887, the Nittany Lions have achieved numerous on-field successes, including two consensus national championships in 1982 and 1986; four Big Ten Conference Championships in 1994, 2005, 2008, and 2016; 13 undefeated seasons in 1887, 1894, 1909, 1911, 1912, 1920, 1921, 1947, 1968, 1969, 1973, 1986 and 1994; and 53 appearances in college bowl games, with an all-time post-season bowl record of 32–20–2. The team ranks seventh among NCAA Division I college football programs in all-time total wins. The Nittany Lions play their home games at Beaver Stadium, located on-campus in University Park, Pennsylvania. History Early history (1887–1949) The first recorded game in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
