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Low-power AM
Low-power broadcasting is broadcasting by a broadcast station at a low transmitter power output to a smaller service area than "full power" stations within the same region. It is often distinguished from "micropower broadcasting" (more commonly "microbroadcasting") and broadcast translators. LPAM, LPFM and LPTV are in various levels of use across the world, varying widely based on the laws and their enforcement. Canada Radio communications in Canada are regulated by the Radio Communications and Broadcasting Regulatory Branch, a branch of Industry Canada, in conjunction with the Canadian Radio-television and Telecommunications Commission (CRTC). Interested parties must apply for both a certificate from Industry Canada and a license from CRTC in order to operate a radio station. Industry Canada manages the technicalities of spectrum space and technological requirements whereas content regulation is conducted more so by CRTC. LPFM is broken up into two classes in Canada, Low (50 w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
LPAM Device
Low-power broadcasting is broadcasting by a broadcast station at a low transmitter power output to a smaller service area than "full power" stations within the same region. It is often distinguished from "micropower broadcasting" (more commonly " microbroadcasting") and broadcast translators. LPAM, LPFM and LPTV are in various levels of use across the world, varying widely based on the laws and their enforcement. Canada Radio communications in Canada are regulated by the Radio Communications and Broadcasting Regulatory Branch, a branch of Industry Canada, in conjunction with the Canadian Radio-television and Telecommunications Commission (CRTC). Interested parties must apply for both a certificate from Industry Canada and a license from CRTC in order to operate a radio station. Industry Canada manages the technicalities of spectrum space and technological requirements whereas content regulation is conducted more so by CRTC. LPFM is broken up into two classes in Canada, Low (50 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Military Base
A military base is a facility directly owned and operated by or for the military or one of its branches that shelters military equipment and personnel, and facilitates training and operations. A military base always provides accommodations for one or more units, but it may also be used as a command center, training ground or proving ground. In most cases, military bases rely on outside help to operate. However, certain complex bases are able to endure on their own for long periods because they are able to provide food, water and other necessities for their inhabitants while under siege. Bases for military aviation are called military air bases, or simply "air bases". Bases for military ships are called naval bases. The environmental impact of a given military base is dependent on its size and the manner of operation conducted at the base. Commonly, habitat destruction, reductions in soil quality, chemical contamination, and noise pollution are among the environmental damages ca ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Radio Homogenization
Radio homogenization is the shift to stations airing the same pre-recorded program material and central-casting via Internet or satellite. Background of corporate consolidation Deregulation The 1996 Telecommunications Act removed all national and local restrictions on national ownership that specified the number of stations one company could own in a set market. Before 1996, a company was prohibited from owning more than 40 stations, and from owning more than two AM and two FM stations in one market. The bill covered a wide range of formats and was the first time the Internet was included in broadcasting and spectrum allotment. The federal government has regulated the extent of ownership for radio stations since the 1934 Communications Act. The policy was based on the notion that the airwaves were accessible to the public and therefore had an accompanying public trust. However, the U.S. Federal Communications Commission (FCC) began to relax these limitations. Lydia Polgreen' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National League Of Cities
The National League of Cities (NLC) is an advocacy organization in the United States that represents the country's 19,495 cities, towns, and villages along with 49 state municipal leagues. Created in 1924, it has evolved into a leading membership organization providing education, research, support, and advocacy to city leaders across America. Based in Washington, D.C., it is considered part of the ' Big Seven', a group of organizations that represent local and state government in the United States. The NLC provides training to municipal officials, holds conferences, lobbies and provides assistance to cities in educational issues. NLC was first founded as the American Municipal Association in Lawrence, Kansas by a group of ten state municipal leagues seeking greater coordination and representation in national affairs. In 1947, the organization opened its membership to individual cities with populations of 100,000 or more. That membership threshold was gradually moved downward, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Trade Union
A trade union (labor union in American English), often simply referred to as a union, is an organization of workers intent on "maintaining or improving the conditions of their employment", ch. I such as attaining better wages and benefits (such as holiday, health care, and retirement), improving working conditions, improving safety standards, establishing complaint procedures, developing rules governing status of employees (rules governing promotions, just-cause conditions for termination) and protecting the integrity of their trade through the increased bargaining power wielded by solidarity among workers. Trade unions typically fund their head office and legal team functions through regularly imposed fees called ''union dues''. The delegate staff of the trade union representation in the workforce are usually made up of workplace volunteers who are often appointed by members in democratic elections. The trade union, through an elected leadership and bargaining committee, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Communication Workers Of America
The Communications Workers of America (CWA) is the largest communications and media labor union in the United States, representing about 700,000 members in both the private and public sectors (also in Canada and Puerto Rico). The union has 27 locals in Canada via CWA-SCA Canada (french: Syndicat des communications d'Amérique) representing about 8,000 members. CWA has several affiliated subsidiary labor unions bringing total membership to over 700,000. CWA is headquartered in Washington, D.C., and affiliated with the AFL–CIO, the Strategic Organizing Center the Canadian Labour Congress, and UNI Global Union. The current president is Chris Shelton. History In 1918 telephone operators organized under the Telephone Operators Department of the International Brotherhood of Electrical Workers. While initially successful at organizing, the union was damaged by a 1923 strike and subsequent AT&T lockout. After AT&T installed company-controlled Employees' Committees, the Telephone Operat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Library Association
The American Library Association (ALA) is a nonprofit organization based in the United States that promotes libraries and library education internationally. It is the oldest and largest library association in the world, with 49,727 members as of 2021. History During the Centennial Exposition in Philadelphia in 1876, 103 librarians, 90 men and 13 women, responded to a call for a "Convention of Librarians" to be held October 4–6 at the Historical Society of Pennsylvania. At the end of the meeting, according to Ed Holley in his essay "ALA at 100", "the register was passed around for all to sign who wished to become charter members," making October 6, 1876, the date of the ALA’s founding. Among the 103 librarians in attendance were Justin Winsor (Boston Public, Harvard), William Frederick Poole (Chicago Public, Newberry), Charles Ammi Cutter (Boston Athenaeum), Melvil Dewey, and Richard Rogers Bowker. Attendees came from as far west as Chicago and from England. The ALA wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United Church Of Christ
The United Church of Christ (UCC) is a mainline Protestant Christian denomination based in the United States, with historical and confessional roots in the Congregational, Calvinist, Lutheran, and Anabaptist traditions, and with approximately 4,800 churches and 773,500 members. The United Church of Christ is a historical continuation of the General Council of Congregational Christian churches founded under the influence of New England Pilgrims and Puritans. Moreover, it also subsumed the third largest Calvinist group in the country, the German Reformed. The Evangelical and Reformed Church and the General Council of the Congregational Christian Churches united in 1957 to form the UCC. These two denominations, which were themselves the result of earlier unions, had their roots in Congregational, Lutheran, Evangelical, and Reformed denominations. At the end of 2014, the UCC's 5,116 congregations claimed 979,239 members, primarily in the U.S. In 2015, Pew Research estimated that 0 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bonnie Raitt
Bonnie Lynn Raitt (; born November 8, 1949) is an American blues singer and guitarist. In 1971, Raitt released her self-titled debut album. Following this, she released a series of critically acclaimed roots-influenced albums that incorporated elements of blues, rock, folk, and country. She was also a frequent session player and collaborator with other artists, including Warren Zevon, Little Feat, Jackson Browne, The Pointer Sisters, John Prine and Leon Russell. In 1989, after several years of limited commercial success, she had a major hit with her tenth studio album '' Nick of Time'', which included the song of the same name. The album reached number one on the ''Billboard'' 200 chart, and won the Grammy Award for Album of the Year. It has since been selected by the Library of Congress for preservation in the United States National Recording Registry. Her following two albums, '' Luck of the Draw'' (1991) and ''Longing in Their Hearts'' (1994), were multimillion sellers, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Progressivism In The United States
Progressivism in the United States is a political philosophy and reform movement in the United States advocating for policies that are generally considered left-wing, left-wing populist, libertarian socialist, social democratic, and environmentalist. In mainstream American politics, progressives generally advocate for a universal healthcare system, wage equity and labor rights, economic justice, social justice, opposition to the military-industrial complex, corporate regulation, the abolition of capital punishment, and action on climate change. It reached its height early in the 20th century. Middle class and reformist in nature, it arose as a response to the vast changes brought by modernization such as the growth of large corporations, pollution and corruption in American politics. Historian Alonzo Hamby describes American progressivism as a "political movement that addresses ideas, impulses, and issues stemming from modernization of American society. Emerging at the end of t ... [...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] |
