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National Transmission Agency
The National Transmission Agency (NTA) was an agency within the Australian Department of Communications and the Arts that existed from its inception in 1992 until 1997. Its main function was to administer the transmissions of the Australian government's network of broadcasting stations. Beginnings The NTA was established in July 1992 by the Australian government to supervise the operation of the National Transmission Network (NTN). The NTN was, and still is, the network of radio and television transmitters that broadcast the programs of Australia's national broadcasters, namely SBS and ABC. The NTA existed as a separate cost centre within the Department of Communications and the Arts because it was funded directly from the Department of Finance during its years of operation. Operations Its function was to oversee various Australian government programs relating to the broadcasting of ABC and SBS television and radio programs within Australia and of ABC Radio Australia on sho ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Shortwave
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 (100 to 10 metres); above the medium frequency band (MF), to the bottom of the VHF band. Radio waves in the shortwave band can be reflected or refracted from a layer of electrically charged atoms in the atmosphere called the ionosphere. Therefore, short waves directed at an angle into the sky can be reflected back to Earth at great distances, beyond the horizon. This is called skywave or "skip" propagation. Thus shortwave radio can be used for communication over very long distances, in contrast to radio waves of higher frequency, which travel in straight lines (line-of-sight propagation) and are limited by the visual horizon, about 64 km (40 miles). Shortwave broadcasts of radio programs played an important role in the early days of radio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Privatization
Privatization (also privatisation in British English) can mean several different things, most commonly referring to moving something from the public sector into the private sector. It is also sometimes used as a synonym for deregulation when a heavily regulated private company or industry becomes less regulated. Government functions and services may also be privatised (which may also be known as "franchising" or "out-sourcing"); in this case, private entities are tasked with the implementation of government programs or performance of government services that had previously been the purview of state-run agencies. Some examples include revenue collection, law enforcement, water supply, and prison management. Another definition is that privatization is the sale of a state-owned enterprise or municipally owned corporation to private investors; in this case shares may be traded in the public market for the first time, or for the first time since an enterprise's previous nationaliz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emergency Service
Emergency services and rescue services are organizations that ensure public safety and health by addressing and resolving different emergencies. Some of these agencies exist solely for addressing certain types of emergencies, while others deal with ad hoc emergencies as part of their normal responsibilities. Many of these agencies engage in community awareness and prevention programs to help the public avoid, detect, and report emergencies effectively. Emergency services are often considered first responders. Emergency services have one or more dedicated emergency telephone numbers reserved for critical emergency calls. In many countries, one number is used for all of the emergency services (e.g. 911 in the Americas, 999 in the United Kingdom, 112 in continental Europe Continental Europe or mainland Europe is the contiguous continent of Europe, excluding its surrounding islands. It can also be referred to ambiguously as the European continent, – which can conversely mea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telecommunications
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 (such as postal mail) are excluded from the field. The transmission media in telecommunication have evolved through numerous stages of technology, from beacons and other visual signals (such as smoke signals, semaphore telegraphs, signal flags, and optical heliographs), to electrical cable and electromagnetic radiation, including light. Such transmission paths are often divided into communication channels, which afford the advantages of multiplexing multiple concurrent communication sessions. ''Telecommunication'' is often used in its plural form. Other examples of pre-modern long-distance communication included audio messages, such as coded drumb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tendering
An invitation to tender (ITT, otherwise known as a call for bids or a request for tenders) is a formal, structured procedure for generating competing offers from different potential suppliers or contractors looking to obtain an award of business activity in works, supply, or service contracts, often from companies who have been previously assessed for suitability by means of a supplier questionnaire (SQ) or pre-qualification questionnaire (PQQ). The term "notice inviting tenders" (NIT) is often used in purchasing in India. An ITT differs from a request for quotation (RFQ) or a request for proposal (RFP), in which case other reasons (technology used, quality) might cause or allow choice of the second best offer. An RFP is a request for a price from a buyer but the buyer would also expect suggestions and ideas on how the project work should be done. RFPs are thus focused on more than just pricing/cost, they entail a bit of consulting from the contractor or vendor. The closest equi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Telstra
Telstra Group Limited is an Australian telecommunications company that builds and operates telecommunications networks and markets voice, mobile, internet access, pay television and other products and services. It is a member of the S&P/ASX 20 and Australia's largest telecommunications company by market share. Telstra is the largest wireless carrier in Australia, with 18.8 million subscribers as of 2020. Telstra has a long history in Australia, originating together with Australia Post as the Postmaster-General's Department upon federation in 1901. Telstra has transitioned from a state-owned enterprise to a fully privatised company and has recently focused on diversified products and emerging technologies. History Australia's telecommunications services were originally controlled by the Postmaster-General's Department (PMG), formed in 1901 as a result of Australian Federation. Prior to 1901, telecommunications were administered by each colony. On 1 July 1975, separate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Kordia
Kordia is a New Zealand government-owned company, offering a range of technology services and solutions to businesses. It provides a range of services, including mission-critical connectivity, cloud and cyber security services, as well as managed IT, field services, broadcast and safety of life communications. Kordia owns and operates a network in New Zealand, which is based primarily on digital microwave technology. The company also has access to a number of fibre networks running between Auckland, Wellington and Christchurch. Part of Kordia's 65-year heritage is the nationwide network of transmission towers that was built by the company in its various iterations, including: NZBC, Television New Zealand, BCL and now Kordia. In 2007, Kordia upgraded its high sites to build the digital terrestrial television (DTT) platform, which now hosts Freeview (Free-to-air digital television in New Zealand). In recent years, Kordia has made several acquisitions in the cyber security, cloud ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Transmission (telecommunications)
In telecommunications, transmission is the process of sending or propagating an analog or digital signal via a medium that is wired, wireless, or fiber-optic. Transmission technologies typically refer to physical layer protocol duties such as modulation, demodulation, line coding, equalization, error control, bit synchronization and multiplexing, but it may also involve higher-layer protocol duties, for example, digitizing an analog signal, and data compression. Transmission of a digital message, or of a digitized analog signal, is known as data transmission. Examples of transmission are the sending of signals with limited duration, for example, a block or packet of data, a phone call, or an email. See also *Radio transmitter In electronics and telecommunications, a radio transmitter or just transmitter is an electronic device which produces radio waves with an antenna. The transmitter itself generates a radio frequency alternating current, which is applied to the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ABC Radio Australia
ABC Radio Australia, also known as Radio Australia, is the international broadcasting and online service operated by the Australian Broadcasting Corporation (ABC), Australia's public broadcaster. Most programming is in English, with some in Tok Pisin. Radio Australia broadcasts on FM transmitters in seven countries across the Pacific Islands, to the Indo-Pacific region via satellite, and to the rest of world via online streaming. History Programme Delivery Short-wave services from the Australian Broadcasting Corporation was officially opening ceremony by Prime Minister of Australia Robert Menzies on 20 December 1939. One of the functions of Australian shortwave broadcasting was to counter propaganda by the Axis powers, particularly that of Japan. However, the ABC's transmitters were much weaker than the Japanese or German services. The transmitter of Amalgamated Wireless (Australasia) (AWA) near Sydney had 10 kilowatts (kW) of power, and stations VLR and VLW had 2 kW ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
NTA Network
NTA may refer to: * Nanoparticle Tracking Analysis, a method for visualizing and analyzing particles * National Tax Agency, the official tax collecting agency of Japan * National Tax Association, a non-profit organization in United States * National Telefilm Associates, was an independent film distribution company * National Television Awards, a British awards ceremony * National Testing Agency, government agency which conducts entrance examinations for higher educational institutions in India * National Transport Authority (Ireland), the public transport licensing agency for Ireland * National Treasury Administration, the agency of the Ministry of Finance in Taiwan * National Treatment Agency for Substance Misuse, was a special health authority in England * ''Native Title Act 1993'', Australian federal legislation * Natural Science and Technical Academy Isny, a private German university * Neighborhood Tabulation Area, a geographical unit used for projecting demographics of Ne ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
