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ABC North And West SA
ABC North and West SA is a local radio station based in Port Pirie, South Australia, owned by the Australian Broadcasting Corporation. Its callsign is 5CK and is transmitted on the AM band from high power transmitters situated near Crystal Brook. History The 5CK transmitter station, located around 5 km from Crystal Brook on the Gladstone road, was officially opened on 15 March 1932 as a relay of 5CL Adelaide, the Australian Broadcasting Company's fourth regional station (after Rockhampton, Newcastle and Corowa). It was initially provided with a 6.25/7 kW STC transmitter, on a frequency of 635 kHz, and at 7.5 kW aerial power one of Australia's two most powerful broadcast stations, with 2CO Corowa. In 1935 the station's frequency was regularized to 640 kHz, and in 1978 to 639 kHz, following the new standard 9 kHz spacing. The original antenna, suspended between two 56 m masts 80 m apart was in 1962 replaced with a guyed mast antenna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kilohertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that one hertz is the reciprocal of one second. It is named after Heinrich Rudolf Hertz (1857–1894), the first person to provide conclusive proof of the existence of electromagnetic waves. Hertz are commonly expressed in multiples: kilohertz (kHz), megahertz (MHz), gigahertz (GHz), terahertz (THz). Some of the unit's most common uses are in the description of periodic waveforms and musical tones, particularly those used in radio- and audio-related applications. It is also used to describe the clock speeds at which computers and other electronics are driven. The units are sometimes also used as a representation of the energy of a photon, via the Planck relation ''E'' = ''hν'', where ''E'' is the photon's energy, ''ν'' is its frequen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amplitude Modulation
Amplitude modulation (AM) is a modulation technique used in electronic communication, most commonly for transmitting messages with a radio wave. In amplitude modulation, the amplitude (signal strength) of the wave is varied in proportion to that of the message signal, such as an audio signal. This technique contrasts with angle modulation, in which either the frequency of the carrier wave is varied, as in frequency modulation, or its phase, as in phase modulation. AM was the earliest modulation method used for transmitting audio in radio broadcasting. It was developed during the first quarter of the 20th century beginning with Roberto Landell de Moura and Reginald Fessenden's radiotelephone experiments in 1900. This original form of AM is sometimes called double-sideband amplitude modulation (DSBAM), because the standard method produces sidebands on either side of the carrier frequency. Single-sideband modulation uses bandpass filters to eliminate one of the sidebands and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Australia
South Australia (commonly abbreviated as SA) is a state in the southern central part of Australia. It covers some of the most arid parts of the country. With a total land area of , it is the fourth-largest of Australia's states and territories by area, and second smallest state by population. It has a total of 1.8 million people. Its population is the second most highly centralised in Australia, after Western Australia, with more than 77 percent of South Australians living in the capital Adelaide, or its environs. Other population centres in the state are relatively small; Mount Gambier, the second-largest centre, has a population of 33,233. South Australia shares borders with all of the other mainland states, as well as the Northern Territory; it is bordered to the west by Western Australia, to the north by the Northern Territory, to the north-east by Queensland, to the east by New South Wales, to the south-east by Victoria, and to the south by the Great Australian Bight.M ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Australian Broadcasting Corporation
The Australian Broadcasting Corporation (ABC) is the national broadcaster of Australia. It is principally funded by direct grants from the Australian Government and is administered by a government-appointed board. The ABC is a publicly-owned body that is politically independent and fully accountable, with its charter enshrined in legislation, the ''Australian Broadcasting Corporation Act 1983''. ABC Commercial, a profit-making division of the corporation, also helps to generate funding for content provision. The ABC was established as the Australian Broadcasting Commission on 1 July 1932 by an act of federal parliament. It effectively replaced the Australian Broadcasting Company, a private company established in 1924 to provide programming for A-class radio stations. The ABC was given statutory powers that reinforced its independence from the government and enhanced its news-gathering role. Modelled after the British Broadcasting Corporation (BBC), which is funded by a tel ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABC Local Radio
ABC Local Radio is a network of publicly owned radio stations in Australia, operated by the Australian Broadcasting Corporation. ABC Local Radio stations broadcast across the continent using terrestrial transmitters and satellites. Its programming consists of news, current affairs, talkback, entertainment, sport, music and local affairs. They are usually reckoned as the flagship ABC radio stations in their areas. Depending on the time of day and the day of the week, programming can either be purely local (typically on weekday mornings), broadcast from the state or territory capital city ABC station, or simulcast across all ABC Local Radio services across the country (typically overnight, public holidays, in the summer months and on weekends). History Originally, Local Radio was known internally as ''ABC Radio 1'' in metropolitan regions and ''ABC Radio 3'' in regional areas. ''Radio 1'' was a largely local format while ''Radio 3'' was more networked and included content from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Port Pirie, South Australia
Port Pirie is a small city on the east coast of the Spencer Gulf in South Australia, north of the state capital, Adelaide. The city has an expansive history which dates back to 1845. Port Pirie was the first proclaimed regional city in South Australia and is currently the second most important and second busiest port in the state. The city was founded in 1845, and at the 2016 Census had a population of 15,343. Port Pirie is the eighth most populous city in South Australia after Adelaide, Mount Gambier, Gawler, Mount Barker, Whyalla, Murray Bridge and Port Lincoln. The city's economy is dominated by one of the world's largest lead smelters,Port Pirie's lead smelter at risk of breaching licence to ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AM Broadcasting
AM broadcasting is radio broadcasting using amplitude modulation (AM) transmissions. It was the first method developed for making audio radio transmissions, and is still used worldwide, primarily for medium wave (also known as "AM band") transmissions, but also on the longwave and shortwave radio bands. The earliest experimental AM transmissions began in the early 1900s. However, widespread AM broadcasting was not established until the 1920s, following the development of vacuum tube receivers and transmitters. AM radio remained the dominant method of broadcasting for the next 30 years, a period called the "Golden Age of Radio", until television broadcasting became widespread in the 1950s and received most of the programming previously carried by radio. Subsequently, AM radio's audiences have also greatly shrunk due to competition from FM (FM broadcasting, frequency modulation) radio, Digital audio broadcasting, Digital Audio Broadcasting (DAB), satellite radio, HD Radio, HD (digi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystal Brook, South Australia
Crystal Brook is a town in the Mid North of South Australia, 197 kilometres north of the capital, Adelaide. In 2016, the population of the town/postcode was 1,935. Crystal Brook is in a very picturesque location, being at the start of the Flinders Ranges. The town has multiple viewing points and parks. It was named after the spring-fed creek next to which it was founded. Crystal Brook is the second largest town after the city of Port Pirie in the Southern Flinders Ranges area. The shady peppercorn trees grace the main street, Bowman Street. The area where the present town is now was founded in 1839 by Edward John Eyre who was passing through the region. He named it after the beautiful sparkling clear water and named it 'Chrystal Brook'. Crystal Brook is north of Adelaide. The town has had some growth over the past year or two with more proposed job opportunities in the region. Crystal Brook is situated on Goyder's Line near the border of two climate systems. The township of Cr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gladstone, South Australia
Gladstone (including the former town of Booyoolie) is a small rural town in the Mid North of South Australia in the approach to the lower Flinders Ranges. At the 2006 census, Gladstone had a population of 629. The town services the surrounding district with two pubs, three churches, a bank, post office and several shops and small businesses providing basic goods and services. The closest hospital is 11 km away in a neighbouring rural town, but doctors take appointments in the town's medical clinic. There is a kindergarten (approximately 12 enrollments), state primary school (63), Catholic primary school (60) and a secondary school (approximately 205 students, drawn from the wider district). Gladstone has sporting/social clubs providing for Aussie Rules football, netball, cricket, tennis, golf, lawn bowls, swimming (at the local outdoor pool) and soccer (newly formed for school-aged children), all seasonal. Sporting competitions occur between clubs from the neighbouring ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Advertiser (Adelaide)
''The Advertiser'' is a daily tabloid format newspaper based in the city of Adelaide, South Australia. First published as a broadsheet named ''The South Australian Advertiser'' on 12 July 1858,''The South Australian Advertiser'', published 1858–1889 National Library of Australia, digital newspaper library. it is currently a tabloid printed from Monday to Saturday. ''The Advertiser'' came under the ownership of in the 1950s, and the full ownership of in 1987. It is a publication of Advertiser Newspapers Pty Ltd (ADV), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
The Mail (Adelaide)
The ''Sunday Mail'' (originally titled ''The Mail'') is an Adelaide newspaper first published on 4 May 1912 by Clarence Moody. Through much of the 20th century, '' The Advertiser'' was Adelaide's morning broadsheet, '' The News'' the afternoon tabloid, ''The Sunday Mail'' a vehicle for covering weekend sport, and ''Messenger Newspapers'' covering community news. "Sunday Mail" is a business name of Advertiser Newspapers Pty Ltd, a private company that is part of News Corp Australia, which since 2004 has been a component of the U.S. multinational mass media company, News Corp. History ''Mail'' In 1912, Clarence Moody initially set up three newspapers – the ''Sporting Mail'' (1912-1914), ''Saturday Mail'' (1912-1917), and the ''Mail''. The first two titles lasted only a few years, and the ''Mail'' itself went into liquidation in late 1914. Ownership passed briefly to George Annells and Frank Stone, and then to Herbert Syme. In May 1923 News Limited purchased the ''Mail'' an ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
