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High Plains Public Radio
High Plains Public Radio is a network of public radio stations serving the High Plains region of western Kansas, the Texas Panhandle, the Oklahoma Panhandle and eastern Colorado. Operated by the Kanza Society, it is headquartered in Garden City, Kansas and operates an additional studio in Amarillo, Texas. History The Kanza Society was founded in 1977. The network's flagship station, KANZ (91.1 FM) in Garden City, signed on in 1980 from a studio at a converted elementary school in nearby Pierceville. Since then, HPPR has added eleven other full-power stations in Kansas, Oklahoma, Colorado and Texas, as well as low-powered translators in Kansas and Texas. Most of these areas had never been previously served by an NPR station. HPPR's coverage area is made up mostly of rural areas and small towns; by far the largest urban center is Amarillo. The network offers two HD Radio HD Radio (HDR) is a trademark for an in-band on-channel (IBOC) digital radio broadcast technology. It gene ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Garden City, Kansas
Garden City is a city in, and the county seat of, Finney County, Kansas, United States. As of the 2020 United States census, 2020 census, the population of the city was 28,151. The city is home to Garden City Community College and the Lee Richardson Zoo, the largest zoological park in western Kansas. History In February 1878, James R. Fulton, William D. Fulton and W.D.'s son, L.W. Fulton, arrived at the present site of Garden City. The original townsite was laid out on the south half of section 18 by engineer Charles Van Trump. The land was a loose, sandy loam and covered with sagebrush and soap weeds, but there were no trees. Main Street ran directly north and south, dividing William D. and James R. Fulton's claims. As soon as they could get building material, they erected two frame houses. William D. Fulton building on his land, on the east side of Main Street, a house one story and a half high, with two rooms on the ground and two rooms above. This was called the Occidenta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pierceville, Kansas
Pierceville is an Unincorporated area, unincorporated community in Finney County, Kansas, United States. As of the 2020 United States census, 2020 census, the population of the community and nearby areas was 98. It is located along U.S. Routes U.S. Route 50 in Kansas, 50 and U.S. Route 400 (Kansas), 400, southeast of Garden City, Kansas, Garden City. History The Western Trail (a cattle trail) played a part in the founding of this town. The Barton Brothers drove a herd of 3,000 cattle over the trail, and the cattle were the first to feed on the government lands in western Kansas. In the fall of 1872, they came to the area and established a ranch along the Arkansas River. The Atchison, Topeka and Santa Fe Railway was laying track in southwestern Kansas, and they chose the Barton Ranch as headquarters for the town site. It was named Pierceville in honor of Chas. W. and Carlos Pierce, who were members of the original Atchison & Topeka Railroad company. The post office was establi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brewster, Kansas
Brewster is a city in Thomas County, Kansas, United States. As of the 2020 census, the population of the city was 291. History Brewster was named for L.D. Brewster, a railroad official. Brewster was a station and shipping point on the Chicago, Rock Island and Pacific Railroad. The first post office in Brewster was established in September 1888. Geography Brewster is located at (39.362878, -101.376552). According to the United States Census Bureau, the city has a total area of , all of it land. Climate According to the Köppen climate classification system, Brewster has a semi-arid climate, abbreviated "BSk" on climate maps. Demographics 2010 census As of the census of 2010, there were 305 people, 122 households, and 87 families residing in the city. The population density was . There were 142 housing units at an average density of . The racial makeup of the city was 92.5% White, 2.0% Native American, 0.3% Asian, 0.3% Pacific Islander, 3.9% from other races, and 1.0% fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lamar, Colorado
Lamar is the home rule municipality that is the county seat and the most populous municipality of Prowers County, Colorado, United States. The city population was 7,804 at the 2010 United States Census. The city was named after Confederate slaveholder Lucius Quintus Cincinnatus Lamar II during the period that he was Secretary of the Interior in the futile hope that the town would be named as the land office. History Lamar was founded on May 24, 1886 by Issac Holmes. It was named after Lucius Lamar. At the time Lamar was the Secretary of the Interior, but previously he had written the Mississippi Ordinance of Secession, served the Confederacy as an officer and a diplomat. The first town elections were held in December, and C. M. Morrison became the town's first mayor. In 1889 Prowers County was established, and Lamar was elected to house the county's government. Throughout its history, Lamar has suffered from fires and floods. The town was also greatly affected by the Dust ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Foot (unit)
The foot ( feet), standard symbol: ft, is a unit of length in the British imperial and United States customary systems of measurement. The prime symbol, , is a customarily used alternative symbol. Since the International Yard and Pound Agreement of 1959, one foot is defined as 0.3048 meters exactly. In both customary and imperial units, one foot comprises 12 inches and one yard comprises three feet. Historically the "foot" was a part of many local systems of units, including the Greek, Roman, Chinese, French, and English systems. It varied in length from country to country, from city to city, and sometimes from trade to trade. Its length was usually between 250 mm and 335 mm and was generally, but not always, subdivided into 12 inches or 16 digits. The United States is the only industrialized nation that uses the international foot and the survey foot (a customary unit of length) in preference to the meter in its commercial, engin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Metre
The metre (British spelling) or meter (American spelling; see spelling differences) (from the French unit , from the Greek noun , "measure"), symbol m, is the primary unit of length in the International System of Units (SI), though its prefixed forms are also used relatively frequently. The metre was originally defined in 1793 as one ten-millionth of the distance from the equator to the North Pole along a great circle, so the Earth's circumference is approximately km. In 1799, the metre was redefined in terms of a prototype metre bar (the actual bar used was changed in 1889). In 1960, the metre was redefined in terms of a certain number of wavelengths of a certain emission line of krypton-86. The current definition was adopted in 1983 and modified slightly in 2002 to clarify that the metre is a measure of proper length. From 1983 until 2019, the metre was formally defined as the length of the path travelled by light in a vacuum in of a second. After the 2019 redefi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Height Above Average Terrain
Height above average terrain (HAAT), or (less popularly) effective height above average terrain (EHAAT), is the vertical position of an antenna site is above the surrounding landscape. HAAT is used extensively in FM radio and television, as it is more important than effective radiated power (ERP) in determining the range of broadcasts ( VHF and UHF in particular, as they are line of sight transmissions). For international coordination, it is officially measured in meters, even by the Federal Communications Commission in the United States, as Canada and Mexico have extensive border zones where stations can be received on either side of the international boundaries. Stations that want to increase above a certain HAAT must reduce their power accordingly, based on the maximum distance their station class is allowed to cover (see List of North American broadcast station classes for more information on this). The FCC procedure to calculate HAAT is: from the proposed or actual antenna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Watt
The watt (symbol: W) is the unit of power or radiant flux in the International System of Units (SI), equal to 1 joule per second or 1 kg⋅m2⋅s−3. It is used to quantify the rate of energy transfer. The watt is named after James Watt (1736–1819), an 18th-century Scottish inventor, mechanical engineer, and chemist who improved the Newcomen engine with his own steam engine in 1776. Watt's invention was fundamental for the Industrial Revolution. Overview When an object's velocity is held constant at one metre per second against a constant opposing force of one newton, the rate at which work is done is one watt. : \mathrm In terms of electromagnetism, one watt is the rate at which electrical work is performed when a current of one ampere (A) flows across an electrical potential difference of one volt (V), meaning the watt is equivalent to the volt-ampere (the latter unit, however, is used for a different quantity from the real power of an electrical circuit). : ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Effective Radiated Power
Effective radiated power (ERP), synonymous with equivalent radiated power, is an IEEE standardized definition of directional radio frequency (RF) power, such as that emitted by a radio transmitter. It is the total power in watts that would have to be radiated by a half-wave dipole antenna to give the same radiation intensity (signal strength or power flux density in watts per square meter) as the actual source antenna at a distant receiver located in the direction of the antenna's strongest beam (main lobe). ERP measures the combination of the power emitted by the transmitter and the ability of the antenna to direct that power in a given direction. It is equal to the input power to the antenna multiplied by the gain of the antenna. It is used in electronics and telecommunications, particularly in broadcasting to quantify the apparent power of a broadcasting station experienced by listeners in its reception area. An alternate parameter that measures the same thing is effec ... [...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 distinguishe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
City Of License
In American, 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 United States federal law, 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 (politics), 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 s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Frequency
Frequency is the number of occurrences of a repeating event per unit of time. It is also occasionally referred to as ''temporal frequency'' for clarity, and is distinct from ''angular frequency''. Frequency is measured in hertz (Hz) which is equal to one event per second. The period is the interval of time between events, so the period is the reciprocal of the frequency. For example, if a heart beats at a frequency of 120 times a minute (2 hertz), the period, —the interval at which the beats repeat—is half a second (60 seconds divided by 120 beats). Frequency is an important parameter used in science and engineering to specify the rate of oscillatory and vibratory phenomena, such as mechanical vibrations, audio signals (sound), radio waves, and light. Definitions and units For cyclical phenomena such as oscillations, waves, or for examples of simple harmonic motion, the term ''frequency'' is defined as the number of cycles or vibrations per unit of time. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
