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The Isle of Man has an extensive communications infrastructure consisting of telephone cables, submarine cables, and an array of television and mobile phone transmitters and towers.
Shortwave radio is radio transmission using shortwave (SW) radio frequencies. There is no official definition of the band, but the range always includes all of the high frequency band (HF), which extends from 3 to 30 MHz ; above the medium frequency band (MF), to the bottom of the VHF band.
Telecommunications in Australia refers to communication in Australia through electronic means, using devices such as telephone, television, radio or computer, and services such as the telephony and broadband networks. Telecommunications have always been important in Australia given the 'tyranny of distance' with a dispersed population. Governments have driven telecommunication development and have a key role in its regulation.
Broadcasting is the distribution of audio or video content to a dispersed audience via any electronic mass communications medium, but typically one using the electromagnetic spectrum, in a one-to-many model. Broadcasting began with AM radio, which came into popular use around 1920 with the spread of vacuum tube radio transmitters and receivers. Before this, all forms of electronic communication were one-to-one, with the message intended for a single recipient. The term broadcasting evolved from its use as the agricultural method of sowing seeds in a field by casting them broadly about. It was later adopted for describing the widespread distribution of information by printed materials or by telegraph. Examples applying it to "one-to-many" radio transmissions of an individual station to multiple listeners appeared as early as 1898.
Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter. Radio waves with frequencies above the UHF band fall into the super-high frequency (SHF) or microwave frequency range. Lower frequency signals fall into the VHF or lower bands. UHF radio waves propagate mainly by line of sight; they are blocked by hills and large buildings although the transmission through building walls is strong enough for indoor reception. They are used for television broadcasting, cell phones, satellite communication including GPS, personal radio services including Wi-Fi and Bluetooth, walkie-talkies, cordless phones, satellite phones, and numerous other applications.
Television broadcasting in Australia began officially on 16 September 1956, with the opening of TCN-9, quickly followed by national and commercial stations in Sydney and Melbourne, all these being in 625-line black and white. The commencement date was designed so as to provide coverage of the Olympic Games in Melbourne. It has now grown to be a nationwide system that includes a broad range of public, commercial, community, subscription, narrowcast, and amateur stations.
Wireless communication is the transfer of information between two or more points that do not use an electrical conductor as a medium for the transfer. The most common wireless technologies use radio waves. With radio waves, intended distances can be short, such as a few meters for Bluetooth or as far as millions of kilometers for deep-space radio communications. It encompasses various types of fixed, mobile, and portable applications, including two-way radios, cellular telephones, personal digital assistants (PDAs), and wireless networking. Other examples of applications of radio wireless technology include GPS units, garage door openers, wireless computer mouse, keyboards and headsets, headphones, radio receivers, satellite television, broadcast television and cordless telephones. Somewhat less common methods of achieving wireless communications include the use of other electromagnetic wireless technologies, such as light, magnetic, or electric fields or the use of sound.
Multichannel Multipoint Distribution Service (MMDS), formerly known as Broadband Radio Service (BRS) and also known as Wireless Cable, is a wireless telecommunications technology, used for general-purpose broadband networking or, more commonly, as an alternative method of cable television programming reception.
Digital radio is the use of digital technology to transmit or receive across the radio spectrum. Digital transmission by radio waves includes digital broadcasting, and especially digital audio radio services.
Mount Sugarloaf, also known as Great Sugar Loaf, is a mountain in the lower Hunter Region of New South Wales, Australia, standing at 412 meters, it looks over the cities of Newcastle, Lake Macquarie, Cessnock and Maitland. The summit of the mountain is in the Lake Macquarie suburb of West Wallsend and access to the summit is gained via this suburb. However, the mountain itself is also part of the city of Cessnock suburbs Mulbring and Richmond Vale. It is home to television transmitters that broadcast to the lower Hunter region. On 18 and 19 July 1965, the mountain received 10 centimetres (4 in) of snow. It also snowed on the summit in the winter of 1975.
Southern Cross Media Group Limited, doing business as Southern Cross Austereo, is an Australian media company which operates broadcast radio and television stations. It is the largest radio broadcaster in Australia, operating 86 radio stations, and has a reach into every state and territory.
Arqiva is a British telecommunications company which provides infrastructure, broadcast transmission and smart meter facilities in the United Kingdom. The company is headquartered at the former IBA headquarters at Crawley Court in the village of Crawley, Hampshire, just outside Winchester. Its main customers are broadcasters and utility companies, and its main asset is a network of circa. 1,500 radio and television transmission sites. It is owned by a consortium of investors led by CPP and the Australian investment house Macquarie Bank. Arqiva is a patron of the Radio Academy.
Television Sydney (TVS) was a free-to-air sponsors-based community television station broadcasting in Sydney, Australia. The station lost both its community franchise and the battle to remain on the air on 8 December 2015 and ceased transmission on 20 December 2015 after almost ten years on the air. The station was not replaced.
Digital terrestrial television in Australia commenced on 1 January 2001 in Sydney, Melbourne, Brisbane, Adelaide and Perth using DVB-T standards. The phase out of analogue PAL transmissions began on 30 June 2010 and was completed by 10 December 2013.
ABC Television is the general name for the national television services of the Australian Broadcasting Corporation (ABC). Until an organisational restructure in 2017/2018, ABC Television was also the name of a division of the ABC. The name was also used to refer to the first and for many years the only national ABC channel, before it was renamed ABC1 and then again to ABC TV.
Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmitter connected to an antenna which radiates the waves, and received by another antenna connected to a radio receiver. Radio is very widely used in modern technology, in radio communication, radar, radio navigation, remote control, remote sensing, and other applications.
Digital broadcast radio in Australia uses the DAB+ standard and is available in Sydney, Melbourne, Brisbane, Perth, Adelaide, Canberra, Darwin and Hobart. However, after 11 years, regional large cities such as Townsville and Ballarat still do not have DAB. The national government owned television/radio networks, the ABC and SBS, and the commercial radio stations in each market provide many of their services and a few digital-only services on the digital platform. Australia uses the AAC+ codec provided with upgraded DAB+ standard.
Telecommunication is the transmission of information by various types of technologies over wire, radio, optical, or other electromagnetic systems. It has its origin in the desire of humans for communication over a distance greater than that feasible with the human voice, but with a similar scale of expediency; thus, slow systems are excluded from the field.
The Nightcap Range is a mountain range located in the Northern Rivers region of New South Wales, Australia, in the area between Lismore and the New South Wales-Queensland border. It includes Mount Burrell and Mount Nardi as well as containing the Nightcap National Park. The range is mainly covered with relict warm temperate rainforest and contains several rare and/or endemic species, most notably the Nightcap oak and the Minyon quandong.
References
- ↑ "corporate profile on www.broadcastaustralia.com.au". Archived from the original on 11 December 2016. Retrieved 26 December 2016.
- ↑ Bensinger, Greg (30 July 2010). "New York City Subway Platforms to Go Wireless in Revived Accord". Bloomberg. Retrieved 13 October 2013.
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