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WOI (AM)
WOI (640 kHz) – branded ''Iowa Public Radio'' – is a non-commercial AM radio station licensed to Ames, Iowa, and serving the Des Moines metropolitan area. Owned by Iowa Public Radio, it is a listener-supported public radio station airing a news and talk format. WOI is the flagship station for Iowa Public Radio's News Network, affiliated with NPR, Public Radio International and the BBC World Service. Its transmitter is located at a two-tower array off Zumwalt Station Road near Y Avenue, southwest of Ames. By day, WOI is powered at 5,000 watts using a single non-directional antenna. Due to its low transmitting frequency and Iowa's flat land (with near-perfect ground conductivity), its daytime footprint is equivalent to that of a full-power FM station, providing at least secondary coverage to almost all of Iowa-as far east as Cedar Rapids and as far west as Sioux City. Its secondary signal also covers portions of Minnesota, Nebraska, Missouri and South Dakota. Its daytim ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ames, Iowa
Ames () is a city in Story County, Iowa, United States, located approximately north of Des Moines, Iowa, Des Moines in central Iowa. It is the home of Iowa State University (ISU). According to the 2020 United States census, 2020 census, Ames had a population of 66,427, making it the state's List of cities in Iowa, ninth-most populous city. Iowa State University was home to 30,177 students as of fall 2023, which make up approximately one half of the city's population. A United States Department of Energy national laboratory, Ames Laboratory, is located on the ISU campus. Ames also hosts United States Department of Agriculture (USDA) sites: the largest federal animal disease center in the United States, the USDA Agricultural Research Service's National Animal Disease Center (NADC), as well as one of two national USDA sites for the Animal and Plant Health Inspection Service (APHIS), which comprises the National Veterinary Services Laboratory and the Center for Veterinary Biologics. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Format
A radio format or programming format (not to be confused with broadcast programming) describes the overall content broadcast on a radio station. The radio format emerged mainly in the United States in the 1950s, at a time when Radio broadcasting, radio was compelled to develop new and exclusive ways to programming by competition with Television broadcasting, television. The formula has since spread as a reference for commercial radio programming worldwide. A radio format aims to reach a more or less specific audience according to a certain type of programming, which can be thematic or general, more informative or more musical, among other possibilities. Radio formats are often used as a marketing tool and are subject to frequent changes, including temporary changes called "Stunting (broadcasting), stunting." Except for talk radio or sports radio formats, most programming formats are based on commercial music. However the term also includes the news, bulletins, DJ talk, jingles, c ... [...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] |
640 AM
640 AM - The following radio stations broadcast on AM frequency 640 kHz: 640 AM is a North American clear-channel frequency. KFI in Los Angeles, California, KYUK in Bethel, Alaska, and CBN in St. John's, Newfoundland and Labrador, share Class A status of 640 AM. In Argentina * LRA24 in Río Grande, Tierra del Fuego * LU18 in General Roca, Río Negro * LV15 in Villa Mercedes, San Luis In Bolivia * CP 157 in Milluni In Brazil * ZYH458 in Itabuna * ZYH-757 in Goiânia * ZYI-240 in Vitória· * ZYI-418 in Alta Floresta * ZYJ262 in Londrina * ZYJ-489 in Resende * ZYJ590 in Natal, Rio Grande do Norte * ZYK-277 in Porto Alegre * ZYK-547 in Araraquara * ZYL-308 in Para de Minas In Canada Stations in bold are clear-channel stations. In Chile * CA-064 in Curico * CD-064 in Temuco In Costa Rica * TIQQ in San José In Colombia * HJBJ in Santa Marta * HJR32 in Bucaramanga In Cuba * CMLA in Victoria de Las Tunas In Ecuador * HCXY1 in Quito In ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WHO (AM)
WHO (1040 kHz "Newsradio 1040") is a commercial AM broadcasting, AM radio station in Des Moines, Iowa, United States. The station is owned by iHeartMedia and carries a conservative news/talk radio format, with studios on Grand Avenue in Des Moines. WHO broadcasts with 50,000 watts, the maximum power permitted for AM stations in the United States. It uses a non-directional antenna from a transmitter site on 148th Street South in Mitchellville, Iowa. WHO programming is also heard on the second HD Radio digital subchannel of co-owned KDRB (100.3 FM), and the station is Iowa's primary entry point station for the Emergency Alert System. WHO dates back to the early days of broadcasting and is a List of North American broadcast station classes, Class A clear-channel station. The station is one of only two 50,000-watt AM radio stations in Iowa. The other is KXEL in Waterloo, Iowa, Waterloo. However, WHO was originally a Class I-A, while KXEL was given Class I-B status, requiring a direc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Dakota
South Dakota (; Sioux language, Sioux: , ) is a U.S. state, state in the West North Central states, North Central region of the United States. It is also part of the Great Plains. South Dakota is named after the Dakota people, Dakota Sioux tribe, which comprises a large portion of the population—with nine Indian reservation, reservations in the state—and has historically dominated the territory. South Dakota is the List of U.S. states and territories by area, 17th-largest by area, the List of U.S. states and territories by population, fifth-least populous, and the List of U.S. states and territories by population density, fifth-least densely populated of the List of U.S. states, 50 United States. Pierre, South Dakota, Pierre is the List of capitals in the United States, state capital, and Sioux Falls, South Dakota, Sioux Falls, with a population of about 213,900, is South Dakota's List of cities in South Dakota, most populous city. The state is bisected by the Missouri Ri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Missouri
Missouri (''see #Etymology and pronunciation, pronunciation'') is a U.S. state, state in the Midwestern United States, Midwestern region of the United States. Ranking List of U.S. states and territories by area, 21st in land area, it borders Iowa to the north, Illinois, Kentucky and Tennessee to the east, Arkansas to the south and Oklahoma, Kansas, and Nebraska to the west. In the south are the Ozarks, a forested highland, providing timber, minerals, and recreation. At 1.5 billion years old, the St. Francois Mountains are among the oldest in the world. The Missouri River, after which the state is named, flows through the center and into the Mississippi River, which makes up the eastern border. With over six million residents, it is the List of U.S. states and territories by population, 19th-most populous state of the country. The largest urban areas are St. Louis, Kansas City, Missouri, Kansas City, Springfield, Missouri, Springfield, and Columbia, Missouri, Columbia. The Cap ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nebraska
Nebraska ( ) is a landlocked U.S. state, state in the Midwestern United States, Midwestern region of the United States. It borders South Dakota to the north; Iowa to the east and Missouri to the southeast, both across the Missouri River; Kansas to the south; Colorado to the southwest; and Wyoming to the west. Nebraska is the List of U.S. states and territories by area, 16th-largest state by land area, with just over . With a population of over 2 million as of 2024, it is the List of U.S. states and territories by population, 38th-most populous state and the List of states and territories of the United States by population density, eighth-least densely populated. Its List of capitals in the United States, capital is Lincoln, Nebraska, Lincoln, and its List of municipalities in Nebraska, most populous city is Omaha, Nebraska, Omaha, which is on the Missouri River. Nebraska was admitted into the United States in 1867, two years after the end of the American Civil War. The Nebras ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Minnesota
Minnesota ( ) is a U.S. state, state in the Upper Midwestern region of the United States. It is bordered by the Canadian provinces of Manitoba and Ontario to the north and east and by the U.S. states of Wisconsin to the east, Iowa to the south, and North Dakota and South Dakota to the west. It is the List of U.S. states and territories by area, 12th-largest U.S. state in area and the List of U.S. states and territories by population, 22nd-most populous, with about 5.8 million residents. Minnesota is known as the "Land of 10,000 Lakes"; it has 14,420 bodies of fresh water covering at least ten acres each. Roughly a third of the state is Forest cover by state and territory in the United States, forested. Much of the remainder is prairie and farmland. More than 60% of Minnesotans (about 3.71 million) live in the Minneapolis–Saint Paul metropolitan area, known as the "Twin Cities", which is Minnesota's main Politics of Minnesota, political, Economy of Minnesota, economic, and C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sioux City
Sioux City () is a city in Woodbury and Plymouth counties in the U.S. state of Iowa. The population was 85,797 in the 2020 census, making it the fourth-most populous city in Iowa. The county seat of Woodbury County, Sioux City is the primary city of the five-county Sioux City metropolitan area, which had 149,940 residents in 2020. Sioux City and the surrounding areas of northwestern Iowa, northeastern Nebraska and southeastern South Dakota are sometimes referred to collectively as Siouxland. Sioux City is located at the navigational head of the Missouri River. The city is home to several cultural points of interest including the Sioux City Public Museum, Sioux City Art Center and Sergeant Floyd Monument, which is a National Historic Landmark. The city is also home to Chris Larsen Park, commonly referred to as "the Riverfront", which includes the Anderson Dance Pavilion, Sergeant Floyd River Museum & Welcome Center and Lewis and Clark Interpretive Center. History Iow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cedar Rapids
Cedar Rapids is a city in Linn County, Iowa, United States, and its county seat A county seat is an administrative center, seat of government, or capital city of a county or parish (administrative division), civil parish. The term is in use in five countries: Canada, China, Hungary, Romania, and the United States. An equiva .... The population was 137,710 at the 2020 census, making it the second-most populous city in Iowa. The city lies on both banks of the Cedar River (Iowa River), Cedar River, north of Iowa City, Iowa, Iowa City and northeast of Des Moines, Iowa, Des Moines, the state's capital. Cedar Rapids is the economic hub of Eastern Iowa, located at the core of the Interstate 380 (Iowa), Interstate 380 corridor. The population of the three-county Cedar Rapids metropolitan area, Iowa, Cedar Rapids metropolitan area, which includes the nearby cities of Marion, Iowa, Marion and Hiawatha, Iowa, Hiawatha, was 276,520 in 2020. The Cedar Rapids metropolitan area is al ... [...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] |
