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WSUI
WSUI (910 AM) is a public radio station in Iowa City, Iowa. It is operated by the University of Iowa and is a member of Iowa Public Radio's news network. Its signal serves most of eastern Iowa. WSUI is one of two National Public Radio member stations in the region, along with 90.9 KUNI in Cedar Falls. WSUI's sister station is classical music outlet 91.7 KSUI. WSUI's studios and offices are on Grand Avenue in Des Moines. The transmitter is off Sand Road SE in Hills, Iowa. History Experimental Years WSUI got its start in 1911, prior to the era of broadcast radio, operating a "wireless telegraph" transmitter under the experimental radio call sign 9YA. It began airing voice broadcasts in 1919, and was granted a full license on June 26, 1922, originally as WHAA. WSUI may be the oldest educational station west of the Mississippi River. It was one of several AM stations opened by Midwestern universities in the early days of radio, along with Iowa State University's WOI, whi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa Public Radio
Iowa Public Radio is a state network in the U.S. state of Iowa that combines the operations of the National Public Radio member stations run by Iowa State University, the University of Iowa, and University of Northern Iowa. They broadcast programs from National Public Radio, Public Radio International and American Public Media, along with local content (notably music) on weekends and evenings. The network is headquartered in Des Moines, with studios on the ISU campus in Ames, the University of Iowa campus in Iowa City and the UNI campus in Cedar Falls. History For many years, Iowa's three state universities each operated their own set of radio stations, each with slightly different program offerings and coverage areas. The three universities competed somewhat as each station sought to expand its coverage area. In late 2004, the Iowa Board of Regents, which governs the three universities, voted to merge the three radio operations, to consolidate operations. The first network t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KUOM
KUOM (770 AM) – branded ''Radio K'' – is a daytime-only non-commercial educational college/alternative rock radio station licensed to serve Minneapolis, Minnesota. KUOM covers the Minneapolis–Saint Paul metropolitan area, and extends its reach with three low-power broadcast relay stations and one full-power repeater that also allow KUOM's programming to be heard 24 hours a day. Owned by the University of Minnesota, Twin Cities, the station is operated by both faculty and students. The KUOM studios are located at the Rarig Center on the University of Minnesota campus, while the station transmitter is in Falcon Heights. Besides a standard analog transmission, KUOM is also available online. KUOM's AM signal operates with a non-directional antenna located on the St. Paul/ Falcon Heights campus. Due to its 770 kHz frequency located low on the band combined with the region's flat terrain and excellent soil conductivity, the station's AM coverage is comparable to that of a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa City, Iowa
Iowa City, offically the City of Iowa City is a city in Johnson County, Iowa, United States. It is the home of the University of Iowa and county seat of Johnson County, at the center of the Iowa City Metropolitan Statistical Area. At the time of the 2020 census the population was 74,828, making it the state's fifth-largest city. The metropolitan area, which encompasses Johnson and Washington counties, has a population of over 171,000. The Iowa City Metropolitan Statistical Area (MSA) is also a part of a Combined Statistical Area (CSA) with the Cedar Rapids MSA. This CSA plus two additional counties are known as the Iowa City-Cedar Rapids region which collectively has a population of nearly 500,000. Iowa City was the second capital of the Iowa Territory and the first capital city of the State of Iowa. The Old Capitol building is a National Historic Landmark in the center of the University of Iowa campus. The University of Iowa Art Museum and Plum Grove, the home of the firs ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WOI (AM)
WOI (640 AM) – branded ''Iowa Public Radio'' – is a non-commercial educational radio station licensed to serve Ames, Iowa. Owned by Iowa State University, the station covers the Des Moines metropolitan area. Broadcasting a mix of public radio Public broadcasting involves radio, television and other electronic media outlets whose primary mission is public service. Public broadcasters receive funding from diverse sources including license fees, individual contributions, public financing ... and talk radio, WOI is the flagship station for Iowa Public Radio's News Network and the market member station for NPR, Public Radio International, and the BBC World Service. The WOI studios are located at Iowa State University's Communications Building, while the station transmitter resides southwest of Ames. Besides a standard analog AM transmission, WOI is relayed over low-power Ames FM broadcasting, FM Broadcast relay station, translator K234CN (104.7 FM) and is available online. Hist ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
KUNI (FM)
KUNI (90.9 MHz) is a radio station owned and operated by the University of Northern Iowa in Cedar Falls. It is one of two NPR outlets for Eastern Iowa; the other being WSUI in Iowa City. KUNI's transmitter is in Walker, Iowa, with its primary signal covering Cedar Falls, Waterloo, Cedar Rapids and Iowa City. KUNI's programming is simulcast on full-power satellites KUNY 91.5 FM and KRNI 1010 AM in Mason City. KUNI also has three low-power FM translators: K233AA (94.5 FM) in Davenport, K237GD (95.3 FM) in Iowa City, and K274AA (102.1 FM) in Eldridge. Programming is mostly NPR news and talk, with some KUNI produced music programs in the evenings and on weekends. It is now a part of Iowa Public Radio, operating with the other two public radio station clusters at the University of Iowa and Iowa State University. It is the flagship of IPR's "News and Studio One" service, which combines NPR news and talk programming with an extension of the "Live from Studio One" AAA program t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telegraph
Telegraphy is the long-distance transmission of messages where the sender uses symbolic codes, known to the recipient, rather than a physical exchange of an object bearing the message. Thus flag semaphore is a method of telegraphy, whereas pigeon post is not. Ancient signalling systems, although sometimes quite extensive and sophisticated as in China, were generally not capable of transmitting arbitrary text messages. Possible messages were fixed and predetermined and such systems are thus not true telegraphs. The earliest true telegraph put into widespread use was the optical telegraph of Claude Chappe, invented in the late 18th century. The system was used extensively in France, and European nations occupied by France, during the Napoleonic era. The electric telegraph started to replace the optical telegraph in the mid-19th century. It was first taken up in Britain in the form of the Cooke and Wheatstone telegraph, initially used mostly as an aid to railway signalling. Th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vacuum Tube
A vacuum tube, electron tube, valve (British usage), or tube (North America), is a device that controls electric current flow in a high vacuum between electrodes to which an electric voltage, potential difference has been applied. The type known as a thermionic tube or thermionic valve utilizes thermionic emission of electrons from a hot cathode for fundamental electronic functions such as signal amplifier, amplification and current rectifier, rectification. Non-thermionic types such as a vacuum phototube, however, achieve electron emission through the photoelectric effect, and are used for such purposes as the detection of light intensities. In both types, the electrons are accelerated from the cathode to the anode by the electric field in the tube. The simplest vacuum tube, the diode (i.e. Fleming valve), invented in 1904 by John Ambrose Fleming, contains only a heated electron-emitting cathode and an anode. Electrons can only flow in one direction through the device—fro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, the United States, and the Ottoman Empire, with fighting occurring throughout Europe, the Middle East, Africa, the Pacific, and parts of Asia. An estimated 9 million soldiers were killed in combat, plus another 23 million wounded, while 5 million civilians died as a result of military action, hunger, and disease. Millions more died in genocides within the Ottoman Empire and in the 1918 influenza pandemic, which was exacerbated by the movement of combatants during the war. Prior to 1914, the European great powers were divided between the Triple Entente (comprising France, Russia, and Britain) and the Triple Alliance (containing Germany, Austria-Hungary, and Italy). Tensions in the Balkans came to a head on 28 June 1914, following the assassination of Archduke Franz Ferdin ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lone Tree, Iowa
Lone Tree is a city in southeastern Johnson County, Iowa, United States. It is part of the Iowa City, Iowa Metropolitan Statistical Area. The population was 1,357 at the time of the 2020 census. History Lone Tree was platted by John W. Jayne in 1872. Lone Tree derives its name from a giant elm that grew nearby in the pioneer era and served as a prairie landmark. This elm stood on a slight hill south of town. Local legend has it that the tree was so large, buffalo grazed under its expansive branches. It escaped prairie fires because of the lack of grass around the tree. The tree succumbed to the Dutch Elm disease of the 1960s, although valiant efforts were made to save it. The wood from the tree was used to make a sign denoting the tree's home on the hill southeast of the city limits. On December 9, 1985, during the 1980s farm crisis, a local farmer, Dale Burr, became distraught over his growing debt. He shot his wife Emily in their home. He then went to Hills Bank & Trust in t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a method used in telecommunication to encode text characters as standardized sequences of two different signal durations, called ''dots'' and ''dashes'', or ''dits'' and ''dahs''. Morse code is named after Samuel Morse, one of the inventors of the telegraph. International Morse code encodes the 26 basic Latin letters through , one accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals ( prosigns). There is no distinction between upper and lower case letters. Each Morse code symbol is formed by a sequence of ''dits'' and ''dahs''. The ''dit'' duration is the basic unit of time measurement in Morse code transmission. The duration of a ''dah'' is three times the duration of a ''dit''. Each ''dit'' or ''dah'' within an encoded character is followed by a period of signal absence, called a ''space'', equal to the ''dit'' duration. The letters of a word are separated by a space of duration equal to three ''dits'', ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
WHA (AM)
WHA (970 AM) is a non-commercial radio station, licensed since 1922 to the University of Wisconsin and located in Madison, Wisconsin. It serves as the flagship for the Wisconsin Public Radio talk-based "Ideas Network". WHA's programming is also broadcast by two low-powered FM translators, and by WERN FM's HD3 digital subchannel. The station airs a schedule of news and talk programs from Wisconsin Public Radio, NPR, American Public Media, Public Radio International, the Canadian Broadcasting Corporation and the BBC. The same call letters are used by WHA-TV in Madison, the flagship station for PBS Wisconsin. Broadcast frequencies WHA transmits on 970 AM from a 258-foot tower at Silver Spring Farm within the University of Wisconsin–Madison Arboretum. It operates at 5,000 watts during the day. Although WHA's tower is relatively short by modern broadcasting standards, its transmitter power and Wisconsin's flat land (with near-perfect ground conductivity) gives it a daytime cove ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Wisconsin
A university () is an institution of higher (or tertiary) education and research which awards academic degrees in several academic disciplines. Universities typically offer both undergraduate and postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation). *Issuing secular and non-secular degrees: grammar, rhetoric, logic, theology, canon law, notarial law.Hunt Janin: "The university ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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