1.
FM broadcasting
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FM broadcasting is a method of radio broadcasting using frequency modulation technology. Invented in 1933 by American engineer Edwin Armstrong, it is used worldwide to provide high-fidelity sound over broadcast radio, FM broadcasting is capable of better sound quality than AM broadcasting, the chief competing radio broadcasting technology, so it is used for most music broadcasts. FM radio stations use the VHF frequencies, the term FM band describes the frequency band in a given country which is dedicated to FM broadcasting. Throughout the world, the FM broadcast band falls within the VHF part of the radio spectrum. Usually 87.5 to 108.0 MHz is used, or some portion thereof, with few exceptions, In the former Soviet republics, and some former Eastern Bloc countries, assigned frequencies are at intervals of 30 kHz. This band, sometimes referred to as the OIRT band, is slowly being phased out in many countries, in those countries the 87. 5–108.0 MHz band is referred to as the CCIR band. In Japan, the band 76–95 MHz is used, the frequency of an FM broadcast station is usually an exact multiple of 100 kHz. In most of South Korea, the Americas, the Philippines, in some parts of Europe, Greenland and Africa, only even multiples are used. In the UK odd or even are used, in Italy, multiples of 50 kHz are used. There are other unusual and obsolete FM broadcasting standards in countries, including 1,10,30,74,500. Random noise has a triangular spectral distribution in an FM system and this can be offset, to a limited extent, by boosting the high frequencies before transmission and reducing them by a corresponding amount in the receiver. Reducing the high frequencies in the receiver also reduces the high-frequency noise. These processes of boosting and then reducing certain frequencies are known as pre-emphasis and de-emphasis, the amount of pre-emphasis and de-emphasis used is defined by the time constant of a simple RC filter circuit. In most of the world a 50 µs time constant is used, in the Americas and South Korea,75 µs is used. This applies to both mono and stereo transmissions, for stereo, pre-emphasis is applied to the left and right channels before multiplexing. They cannot be pre-emphasized as much because it would cause excessive deviation of the FM carrier, systems more modern than FM broadcasting tend to use either programme-dependent variable pre-emphasis, e. g. dbx in the BTSC TV sound system, or none at all. Long before FM stereo transmission was considered, FM multiplexing of other types of audio level information was experimented with. Edwin Armstrong who invented FM was the first to experiment with multiplexing and these original FM multiplex subcarriers were amplitude modulated
2.
Radio station
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A radio station is a set of equipment necessary to carry on communication via radio waves. Generally, it is a receiver or transmitter, an antenna, Radio stations play a vital role in communication technology as they are heavily relied on to transfer data and information across the world. More broadly, the definition of a radio station includes the aforementioned equipment, such a station may include several radio stations defined above. This definition of a station is more often referred to as a transmitter site. Each station shall be classified by the service in which it operates permanently or temporarily», transmitter - Takes the electrical output of a microphone and then modulates a higher-frequency carrier signal and transmits it as radio waves. Receiver - The broadcast message is received by the receiver and decodes the radio sine waves, antenna - An antenna is required for transmission, it is also required to receive radio waves. The main use of an antenna is to radio signals. Aerial feeder - system of feeding HF-Energy in the antenna Transmission lines - Transmission lines are used to transfer the radio signals from one location to another. For example, a line was used in Luftwaffe, Germany during WW II to send information from camps back to their base. Connectors Interface panel remote control – This is used to various different types of the equipment used in a radio station. To input broadcast data into a transmitter an interface panel will need to be used, cable – A cable can be used to connect the various devices. Equipment Rack – To hold all equipment in a secure and logical manner, power protection equipment – For holding equipments in a stable, secure and logical manner. UPS – For uninterrupted power supply and these are the most used/important devices and items for most radio stations. A microphone is used to capture the input of sound created by people speaking into the device. The sounds are turned into electrical energy, this energy then flows along a metal antenna. As the electrons in the current move back and forth up the antenna. The waves travel at the speed of light, taking the program with them. A compound of both a transmitter and a receiver is called a transceiver, they are combined and share common circuitry or a single housing, when no circuitry is common between the transmit and receive functions, the device becomes a transmitter-receiver
3.
Canada
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Canada is a country in the northern half of North America. Canadas border with the United States is the worlds longest binational land border, the majority of the country has a cold or severely cold winter climate, but southerly areas are warm in summer. Canada is sparsely populated, the majority of its territory being dominated by forest and tundra. It is highly urbanized with 82 per cent of the 35.15 million people concentrated in large and medium-sized cities, One third of the population lives in the three largest cities, Toronto, Montreal and Vancouver. Its capital is Ottawa, and other urban areas include Calgary, Edmonton, Quebec City, Winnipeg. Various aboriginal peoples had inhabited what is now Canada for thousands of years prior to European colonization. Pursuant to the British North America Act, on July 1,1867, the colonies of Canada, New Brunswick and this began an accretion of provinces and territories to the mostly self-governing Dominion to the present ten provinces and three territories forming modern Canada. With the Constitution Act 1982, Canada took over authority, removing the last remaining ties of legal dependence on the Parliament of the United Kingdom. Canada is a parliamentary democracy and a constitutional monarchy, with Queen Elizabeth II being the head of state. The country is officially bilingual at the federal level and it is one of the worlds most ethnically diverse and multicultural nations, the product of large-scale immigration from many other countries. Its advanced economy is the eleventh largest in the world, relying chiefly upon its abundant natural resources, Canadas long and complex relationship with the United States has had a significant impact on its economy and culture. Canada is a country and has the tenth highest nominal per capita income globally as well as the ninth highest ranking in the Human Development Index. It ranks among the highest in international measurements of government transparency, civil liberties, quality of life, economic freedom, Canada is an influential nation in the world, primarily due to its inclusive values, years of prosperity and stability, stable economy, and efficient military. While a variety of theories have been postulated for the origins of Canada. In 1535, indigenous inhabitants of the present-day Quebec City region used the word to direct French explorer Jacques Cartier to the village of Stadacona, from the 16th to the early 18th century Canada referred to the part of New France that lay along the St. Lawrence River. In 1791, the area became two British colonies called Upper Canada and Lower Canada collectively named The Canadas, until their union as the British Province of Canada in 1841. Upon Confederation in 1867, Canada was adopted as the name for the new country at the London Conference. The transition away from the use of Dominion was formally reflected in 1982 with the passage of the Canada Act, later that year, the name of national holiday was changed from Dominion Day to Canada Day
4.
United States
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Forty-eight of the fifty states and the federal district are contiguous and located in North America between Canada and Mexico. The state of Alaska is in the northwest corner of North America, bordered by Canada to the east, the state of Hawaii is an archipelago in the mid-Pacific Ocean. The U. S. territories are scattered about the Pacific Ocean, the geography, climate and wildlife of the country are extremely diverse. At 3.8 million square miles and with over 324 million people, the United States is the worlds third- or fourth-largest country by area, third-largest by land area. It is one of the worlds most ethnically diverse and multicultural nations, paleo-Indians migrated from Asia to the North American mainland at least 15,000 years ago. European colonization began in the 16th century, the United States emerged from 13 British colonies along the East Coast. Numerous disputes between Great Britain and the following the Seven Years War led to the American Revolution. On July 4,1776, during the course of the American Revolutionary War, the war ended in 1783 with recognition of the independence of the United States by Great Britain, representing the first successful war of independence against a European power. The current constitution was adopted in 1788, after the Articles of Confederation, the first ten amendments, collectively named the Bill of Rights, were ratified in 1791 and designed to guarantee many fundamental civil liberties. During the second half of the 19th century, the American Civil War led to the end of slavery in the country. By the end of century, the United States extended into the Pacific Ocean. The Spanish–American War and World War I confirmed the status as a global military power. The end of the Cold War and the dissolution of the Soviet Union in 1991 left the United States as the sole superpower. The U. S. is a member of the United Nations, World Bank, International Monetary Fund, Organization of American States. The United States is a developed country, with the worlds largest economy by nominal GDP. It ranks highly in several measures of performance, including average wage, human development, per capita GDP. While the U. S. economy is considered post-industrial, characterized by the dominance of services and knowledge economy, the United States is a prominent political and cultural force internationally, and a leader in scientific research and technological innovations. In 1507, the German cartographer Martin Waldseemüller produced a map on which he named the lands of the Western Hemisphere America after the Italian explorer and cartographer Amerigo Vespucci
5.
Adult contemporary music
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Adult contemporary is rather a continuation of the easy listening and soft rock style that became popular in the 1960s and 1970s with some adjustments that reflect the evolution of pop/rock music. Adult contemporary tends to have lush, soothing and highly polished qualities where emphasis on melody and it is usually melodic enough to get a listeners attention, and is inoffensive and pleasurable enough to work well as background music. Like most of pop music, its songs tend to be written in a basic format employing a verse–chorus structure, the format is heavy on romantic sentimental ballads which mostly use acoustic instruments such as acoustic guitars, pianos, saxophones, and sometimes an orchestral set. The electric guitars are normally faint and high-pitched, however, recent adult contemporary music may usually feature synthesizers. An AC radio station may play mainstream music, but it excludes hip hop, dance tracks, hard rock, and some forms of teen pop, as these are popular among adults. AC radio often targets the 25–44 age group, the demographic that has received the most attention from advertisers since the 1960s, a common practice in recent years of adult contemporary stations is to play less newer music and more hits of the past. This de-emphasis on new songs slows the progression of the AC chart, over the years, AC has spawned subgenres including hot AC, soft AC, urban AC, rhythmic AC, and Christian AC. Some stations play only hot AC, soft AC, or only one of the variety of subgenres, therefore, it is not usually considered a specific genre of music, it is merely an assemblage of selected tracks from musicians of many different genres. Adult contemporary traces its roots to the 1960s easy listening format, a few offered 90% instrumentals, and a handful were entirely instrumental. Billboard first published the Easy Listening chart July 17,1961, with 20 songs, the chart described itself as not too far out in either direction. Initially, the vocalists consisted of such as Frank Sinatra, Doris Day, Johnny Mathis, Connie Francis, Nat King Cole, Perry Como. The custom recordings were usually instrumental versions of current or recent rock and roll or pop hit songs, some stations would also occasionally play earlier big band-era recordings from the 1940s and early 1950s. After 1965, differences between the Hot 100 chart and the Easy Listening chart became more pronounced, better reflecting what middle of the road stations were actually playing, the composition of the chart changed dramatically. As rock music continued to harden, there was much less crossover between the Hot 100 and Easy Listening chart than there had been in the half of the 1960s. Roger Miller, Barbra Streisand and Bobby Vinton were among the charts most popular performers and these middle of the road stations also frequently included older, pre-rock-era adult standards and big band titles to further appeal to adult listeners who had grown up with those songs. Another big impetus for the evolution of the AC radio format was the popularity of easy listening or beautiful music stations, stations with music specifically designed to be purely ambient, hard rock had been established as a mainstream genre by 1965. From the end of the 1960s, it common to divide mainstream rock music into soft and hard rock. Soft rock was often derived from rock, using acoustic instruments and putting more emphasis on melody
6.
London, Ontario
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London is a city in Southwestern Ontario, Canada along the Quebec City–Windsor Corridor. The city has a population of 383,822 according to the 2016 Canadian census, London is at the confluence of the Thames River, approximately halfway between Toronto, Ontario and Detroit, Michigan. The City of London is a municipality, politically separate from Middlesex County. London and the Thames were named in 1793 by John Graves Simcoe, the first European settlement was between 1801 and 1804 by Peter Hagerman. The village was founded in 1826 and incorporated in 1855, since then, London has grown to be the largest Southwestern Ontario municipality and Canadas 11th largest metropolitan area, having annexed many of the smaller communities that surrounded it. London is a centre of health care and education, being home to the University of Western Ontario, Fanshawe College. Londons university and hospitals are among its top ten employers, London lies at the junction of Highway 401 and 402, connecting it to Toronto, Windsor, and Sarnia. It also has an airport, train and bus station. Prior to European contact in the 18th century, the present site of London was occupied by several Neutral, Odawa, archaeological investigations in the region indicate that aboriginal people have resided in the area for at least the past 10,000 years. The current location of London was selected as the site of the capital of Upper Canada in 1793 by Lieutenant-Governor John Graves Simcoe. Simcoe intended to name the settlement Georgina, in honour of King George III, however, the choice of a capital site in the midst of extensive hardwood forests was rejected by Guy Carleton. In 1814, there was a skirmish during the War of 1812 in what is now southwest London at Reservoir Hill, the village of London, named after the English capital of London, was not founded until 1826, and not as the capital Simcoe envisioned. Rather, it was a seat for the area west of the actual capital. At the time, Crown and clergy reserves were receiving preference in the rest of Ontario, in 1832, the new settlement suffered an outbreak of cholera. London proved a centre of strong Tory support during the Upper Canada Rebellion of 1837, London was incorporated as a town in 1840. On 13 April 1845, fire destroyed much of London, which was at the time largely constructed of wooden buildings, one of the first casualties was the towns only fire engine. This fire burned nearly 30 acres of land destroying 150 buildings before burning itself out later the same day, one-fifth of London was destroyed and this was the provinces first million dollar fire. Sir John Carling, Tory MP for London, gave three events to explain the development of London in a 1901 speech
7.
CHST-FM
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CHST-FM is a Canadian radio station, broadcasting at 102.3 FM in London, Ontario. The station uses the brand and format Jack FM. Jack FM broadcasts with an effective radiated power of 5.84 kW from the CFPL-TV tower in Southwest London. Due to CHST-FMs low ERP relative to some London area radio stations, its broadcast signal covers only Middlesex, Elgin, the stations coverage to the west is impeded by co-channel WGRT in Port Huron, Michigan. Approved by the CRTC in 1999, CHST was launched by CHUM Limited in 2000 and it originally used the brand Star 102.3 with a hot adult contemporary format, but was rebranded as the adult hits format Bob FM in July 2003. On June 21,2010, CTVglobemedia announced it had entered into an agreement to sell the station to Rogers Media, the sale was approved by the CRTC on December 22,2010. On September 12,2012, Rogers received approval to increase the effective radiated power from 5,840 to 20,400 watts. Following the acquisition, the continued to use the Bob FM name. On August 28,2014, at 6 a. m, CHST-FM adopted the Jack FM brand, with no change in format. Official website CHST History - Canadian Communications Foundation Query the RECs Canadian station database for CHST-FM
8.
Bell Media
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CTVglobemedia, was one of Canadas largest private media companies. Its operations included newspaper publishing, television broadcasting and production, radio broadcasting, in September 2010, Bell announced plans to re-acquire full control of the groups broadcasting assets. The Canadian Radio-television and Telecommunications Commission approved the Bell/CTV portion of the deal in March 2011, the company was renamed Bell Media when the deal closed in April 2011, with Bells sympatico. ca Internet portal becoming part of Bell Media. CTVglobemedias main asset was CTV Inc. a major Canadian broadcaster, CTV and its subsidiaries own the following broadcast television assets, CTV, Canadas oldest, largest, and most-watched private broadcast television network, including 21 owned and operated stations. Along with broadcast television stations, CTVglobemedia also owned 30 cable television specialty channels, for all practical purposes, CTVglobemedia is the successor to Baton Broadcasting Inc. which by the late 1990s had become one of Canadas largest broadcasters. Baton Aldred Rogers Broadcasting Ltd. was originally formed in 1960 to operate Torontos first private TV station, the original investors included the Bassett and Eaton families, Joel Aldred and Ted Rogers, and Foster Hewitt in a much smaller role. Aldred sold his shares in 1961, followed by Rogers by 1970, with the Bassett and Eaton families firmly in control, CFTO was one of the charter affiliates of CTV when that network formed in 1961, becoming the networks flagship. In 1966, Baton became a part-owner in the network when it was reorganized as a station-owned cooperative, the Board of Broadcast Governors was initially skeptical about the proposal to turn CTV into a cooperative. Since CFTO was by far the largest and richest station in the network, additionally, if one owner ever bought another station, the acquired stations shares would be redistributed among the remaining owners so that each owner would still have one vote out of eight. In 1972, Baton began purchasing other CTV affiliates, starting with CFQC-TV in Saskatoon and this did not, however, give Baton a substantially higher investment in CTV, since its shares were redistributed among the other owners. As a result, Baton still had one vote out of eight. In 1987, Baton began an effort to take over CTV. It started this drive with an expansion into Saskatchewan, purchasing CKCK-TV in Regina, Yorkton twinstick CKOS-TV/CICC-TV. A twinstick CTV affiliate was soon launched in Prince Albert, CIPA-TV, in the late 1980s, Baton applied for a high-power station in Ottawa on channel 60. The licence was approved by the Canadian Radio-television and Telecommunications Commission, appealed to federal cabinet by rival broadcasters, however the licence was surrendered when Baton was instead able to acquire the local CTV affiliate, CJOH-TV, from Allan Slaights Standard Broadcasting. In 1990, Baton purchased the MCTV system of operations in Pembroke, North Bay, Sudbury, Timmins. In 1993, Baton purchased CFPL-TV in London, CKNX-TV in Wingham and received a licence for a new independent station, CHWI-TV, in 1991, the company launched Ontario Network Television, a secondary affiliation carried by Batons CTV and independent stations in Ontario. This was expanded in 1994 into the Baton Broadcast System, or BBS, BBS was meant as a backup in case Batons ongoing acquisitions did not translate into control of CTV itself
9.
Winnipeg
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Winnipeg is the capital and largest city of the province of Manitoba in Canada. It is located near the centre of North America and is 110 kilometres from the U. S. border. It is also the place of the confluence of the Red, the city is named after the nearby Lake Winnipeg, the name comes from the Western Cree words for muddy water. The region was a centre for aboriginal peoples long before the arrival of Europeans. French traders built the first fort on the site in 1738, a settlement was later founded by the Selkirk settlers of the Red River Colony in 1812, the nucleus of which was incorporated as the City of Winnipeg in 1873. As of 2011, Winnipeg is the seventh most populated municipality in Canada, being located very far inland, the local climate is extremely seasonal even by Canadian standards with average January lows of around −21 °C and average July highs of 26 °C. Known as the Gateway to the West, Winnipeg is a railway, Winnipeg was the first Canadian host of the Pan American Games. It is home to professional sports franchises, including the Winnipeg Blue Bombers, the Winnipeg Jets, Manitoba Moose. Winnipeg lies at the confluence of the Assiniboine and the Red River of the North and this point was at the crossroads of canoe routes travelled by First Nations before European contact. Winnipeg is named after nearby Lake Winnipeg, the name is a transcription of the Western Cree words for muddy or brackish water. Estimates of the date of first settlement in this area are varied, in 1805, Canadian colonists observed First Nations peoples engaged in farming activity along the Red River. The practice quickly expanded, driven by the demand by traders for provisions, the rivers provided an extensive transportation network linking northern First Peoples with those to the south along the Missouri and Mississippi rivers. The Ojibwe made some of the first maps on birch bark, sieur de La Vérendrye built the first fur trading post on the site in 1738, called Fort Rouge. French trading continued at this site for decades before the arrival of the British Hudsons Bay Company after France ceded the territory following its defeat in the Seven Years War. Many French and later British men who were trappers married First Nations women, their mixed-race children hunted, traded and they gradually developed as an ethnicity known as the Métis because of sharing a traditional culture. Lord Selkirk was involved with the first permanent settlement, the purchase of land from the Hudsons Bay Company, the North West Company built Fort Gibraltar in 1809, and the Hudsons Bay Company built Fort Douglas in 1812, both in the area of present-day Winnipeg. The two companies competed fiercely over trade, the Métis and Lord Selkirks settlers fought at the Battle of Seven Oaks in 1816. In 1821, the Hudsons Bay and North West Companies merged, Fort Gibraltar was renamed Fort Garry in 1822 and became the leading post in the region for the Hudsons Bay Company
