|
History Of Broadcasting
It is generally recognized that the first radio transmission was made from a temporary station set up by Guglielmo Marconi in 1895 on the Isle of Wight. This followed on from pioneering work in the field by a number of people including Alessandro Volta, André-Marie Ampère, Georg Ohm, James Clerk Maxwell and Heinrich Rudolf Hertz. The radio broadcasting of music and talk intended to reach a dispersed audience started experimentally around 1905–1906, and commercially around 1920 to 1923. VHF (very high frequency) stations started 30 to 35 years later. In the early days, radio stations broadcast on the longwave, mediumwave and shortwave bands, and later on VHF (very high frequency) and UHF (ultra high frequency). However, in the United Kingdom, Hungary, France and some other places, from as early as 1890 there was already a system whereby news, music, live theatre, music hall, fiction readings, religious broadcasts, etc., were available in private homes [and other places] via ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Guglielmo Marconi
Guglielmo Giovanni Maria Marconi, 1st Marquess of Marconi ( ; ; 25 April 1874 – 20 July 1937) was an Italian electrical engineer, inventor, and politician known for his creation of a practical radio wave-based Wireless telegraphy, wireless telegraph system. This led to Marconi being credited as the inventor of radio and sharing the 1909 Nobel Prize in Physics with Karl Ferdinand Braun "in recognition of their contributions to the development of wireless telegraphy". His work laid the foundation for the development of radio, television, and all modern wireless communication systems. Marconi was also an entrepreneur and businessman who founded the Wireless Telegraph & Signal Company (which became the Marconi Company) in the United Kingdom of Great Britain and Ireland, United Kingdom in 1897. In 1929, Marconi was ennobled as a marchese, marquess (''marchese'') by Victor Emmanuel III. In 1931, he set up Vatican Radio for Pope Pius XI. Biography Early years Guglielmo Giovanni Mar ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Music Hall
Music hall is a type of British theatrical entertainment that was most popular from the early Victorian era, beginning around 1850, through the World War I, Great War. It faded away after 1918 as the halls rebranded their entertainment as Variety show, variety. Perceptions of a distinction in Britain between bold and scandalous music hall entertainment and subsequent, more respectable variety entertainment differ. Music hall involved a mixture of popular songs, comedy, speciality acts, and variety entertainment. The term is derived from a type of theatre or venue in which such entertainment took place. In North America vaudeville was in some ways analogous to British music hall, featuring rousing songs and comic acts. Originating in saloon bars within pubs during the 1830s, music hall entertainment became increasingly popular with audiences. So much so, that during the 1850s some public houses were demolished, and specialised music hall theatres developed in their place. These t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Medium Wave
Medium wave (MW) is a part of the medium frequency (MF) radio band used mainly for AM radio broadcasting. The spectrum provides about 120 channels with more limited sound quality than FM stations on the FM broadcast band. During the daytime, reception is usually limited to more local stations, though this is dependent on the signal conditions and quality of radio receiver used. Improved signal propagation at night allows the reception of much longer distance signals (within a range of about 2,000 km or 1,200 miles). This can cause increased interference because on most channels multiple transmitters operate simultaneously worldwide. In addition, amplitude modulation (AM) is often more prone to interference by various electronic devices, especially power supplies and computers. Strong transmitters cover larger areas than on the FM broadcast band but require more energy and longer antennas. Digital modes are possible but had not yet reached momentum. MW was the main radio b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amalgamated Wireless (Australasia)
AWA Technology Services, formerly named Amalgamated Wireless (Australasia) Ltd, is an Australian communications technology company. Throughout most of the twentieth century, AWA was Australia's largest and most prominent electronics organisation, undertaking development, manufacture and distribution of radio, telecommunications, television and audio equipment as well as broadcasting services. After the sell-off of most of its assets and operating divisions, AWA is now primarily an information and communications technology (ICT) services company. History Pre-World War II The company commenced operations in 1909 as Australasian Wireless Limited (AWL), a Telefunken wireless agent. The first chairman was Hugh Denison. Ernest Fisk, a foundation director, was general and technical manager. In 1916 he became managing director and in 1932 chairman. The Marconi Company sued the Australian government in 1912, for infringing their patent (and AWL issued writs against firms using Marc ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernest Fisk
Sir Ernest Thomas Fisk (8 August 18868 July 1965) was an English Australian businessman and entrepreneur, TV and radio engineer, he was the founder (1913) and later managing director (1916) and chairman (1932) of AWA. In 1944 was appointed managing director of the EMI music empire. Biography Early life and training Born the second child of Thomas Harvey Fisk and Charlotte Harritte Holland, he was educated at local Australian schools, although also enrolled at the United Kingdom College, a private London coaching college, he subsequently attended the University of Sydney in 1917, to do a diploma course in the Department of Economics and Commerce. In June 1906, Fisk joined the Marconi Training School, and at Liverpool and Chelmsford, learnt morse code and wireless technology, qualifying as a radio operator and engineer. Career Fisk from selling newspapers, graduated in engineering in the works of Frederick Walton, before becoming one of the first telegraphists at the Britis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Devonport, Tasmania
Devonport ( ; Aboriginal Tasmanians#North, pirinilaplu/palawa kani: ''Limilinaturi'') is a port city situated at the mouth of the Mersey River (Australia), Mersey River on the North West Tasmania, north-west coast of Tasmania, Australia. Positioned east of Burnie and north of Launceston, Tasmania, Launceston, its harbour manages over half of Tasmania's imports and exports, standing as the busiest freight transport, freight port on the island. Devonport also plays a central role in Tasmania's trade sector, supporting industries such as agriculture, manufacturing, and tourism. The City of Devonport's gross domestic product (GDP) was estimated at $3.5b in 2023. The city is home to the Spirit of Tasmania's Passenger terminal (maritime), passenger terminal, facilitating roll-on/roll-off (RORO) ferry operations connecting mainland Australia and Tasmania since July 1985. In the 2022-23 fiscal year, the Port of Devonport welcomed over 450,000 passengers. The completion of the $240m Qu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Queenscliff, Victoria
Queenscliff is a town at the south-eastern end of the Bellarine Peninsula in southern Victoria, Australia. It lies south of Swan Bay at the entrance to Port Phillip. It is the administrative centre for the Borough of Queenscliffe. At the , Queenscliff had a population of 3,276.https://www.abs.gov.au/census/find-census-data/quickstats/2021/LGA26080 Queenscliff is a seaside resort known for its Victorian era heritage and tourist industry and as one of the endpoints of the Searoad ferry to Sorrento on the Mornington Peninsula. History Prior to European settlement, it was inhabited by the Bengalat Bulag clan of the Wautharong tribe, members of the Kulin nation. European explorers first arrived in 1802, Lieutenant John Murray in January and Captain Matthew Flinders in April. The first European settler in the area was convict escapee William Buckley between 1803 and 1835, who briefly lived in a cave with local Aborigines at Point Lonsdale, above which the lighthouse was ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marconi Company
The Marconi Company was a British telecommunications and engineering company founded by Italian inventor Guglielmo Marconi in 1897 which was a pioneer of wireless long distance communication and mass media broadcasting, eventually becoming one of the UK's most successful manufacturing companies. Its roots were in the Wireless Telegraph & Signal Company, which underwent several changes in name after mergers and acquisitions. In 1999, its defence equipment manufacturing division, Marconi Electronic Systems, merged with British Aerospace (BAe) to form BAE Systems. In 2006, financial difficulties led to the collapse of the remaining company, with the bulk of the business acquired by the Swedish telecommunications company, Ericsson. History Naming history * 1897–1900: The Wireless Telegraph & Signal Company * 1900–1963: Marconi's Wireless Telegraph Company * 1963–1987: Marconi Company Ltd * 1987–1998: GEC-Marconi Ltd * 1998–1999: Marconi Electronic Systems, Marconi Elec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Morse Code
Morse code is a telecommunications method which Character encoding, encodes Written language, 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 early developers of the system adopted for electrical telegraphy. International Morse code encodes the 26 ISO basic Latin alphabet, basic Latin letters to , one Diacritic, accented Latin letter (), the Arabic numerals, and a small set of punctuation and procedural signals (Prosigns for Morse code, 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 can vary for signal clarity and operator skill, but for any one message, once the rhythm is established, a beat (music), half-beat is the basic unit of time measurement in Morse code. The duration of a ''dah'' is three times the duration ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amateur Radio Operator
An amateur radio operator is someone who uses equipment at an amateur radio station to engage in two-way personal communications with other amateur operators on radio frequencies assigned to the amateur radio service. Amateur radio operators have been granted an amateur radio license by a governmental regulatory authority after passing an examination on applicable regulations, electronics, radio theory, and radio operation. As a component of their license, amateur radio operators are assigned a call sign that they use to identify themselves during communication. About three million amateur radio operators are currently active worldwide. Amateur radio operators are also known as radio amateurs or hams. The term "ham" as a nickname for amateur radio operators originated in a pejorative usage (like "ham actor") by operators in commercial and professional radio communities, and dates to wired telegraphy. The word was subsequently adopted by amateur radio operators. Demographic ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Théâtrophone
Théâtrophone (, "the theatre phone") was a telephony, telephonic distribution system available in portions of Europe that allowed the subscribers to listen to opera and theatre performances over the telephone lines. The théâtrophone evolved from a Clément Ader invention, which was first demonstrated in 1881, in Paris. Subsequently, in 1890, the invention was commercialized by Compagnie du Théâtrophone, which continued to operate until 1932. Origin The origin of the théâtrophone can be traced to a telephonic transmission system demonstrated by Clément Ader at the 1881 International Exposition of Electricity in Paris. The system was inaugurated by the French President Jules Grévy, and allowed broadcasting of concerts or plays. Ader had arranged 80 telephone transmitters across the front of a stage to create a form of Binaural recording, binaural stereophonic sound. It was the first two-channel audio system, and consisted of a series of telephone transmitters connected fr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telefon Hírmondó
The Telefon Hírmondó (also Telefonhírmondó, generally translated as "Telephone Herald") was a "telephone newspaper" located in Budapest, Hungary, which, beginning in 1893, provided news and entertainment to subscribers over telephone lines. It was both the first and the longest surviving telephone newspaper system, although from 1 December 1925 until its termination in 1944 it was primarily used to retransmit programmes broadcast by Magyar Rádió. Three decades before the development of radio broadcasting, the ''Telefon Hírmondó'' was the first service to electronically deliver a wide range of spoken and musical programming to a diverse audience. Although its inventor envisioned that the technology could be eventually expanded to serve a national or international audience, the technical limitations of the time ultimately limited its service area to just the city of Budapest. Establishment The ''Telefon Hírmondó'' was founded by Tivadar Puskás (a few reviews translated ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
