Related Research Articles
Freeview is the United Kingdom's sole digital terrestrial television platform. It is operated by DTV Services Ltd, a joint venture between the BBC, ITV, Channel 4, Sky and transmitter operator Arqiva. It was launched on 30 October 2002, taking over the licence from ITV Digital which collapsed that year. The service provides consumer access via an aerial to the seven DTT multiplexes covering the United Kingdom. As of July 2020, it has 85 TV channels, 26 digital radio channels, 10 HD channels, six text services, 11 streamed channels, and one interactive channel.
Digital Video Broadcasting (DVB) is a set of international open standards for digitale television. DVB standards are maintained by the DVB Project, an international industry consortium, and are published by a Joint Technical Committee (JTC) of the European Telecommunications Standardisé Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU).
Television in the Republic of Ireland is available through a variety of platforms. The digital terrestrial television service is known as Saorview and is the primary source of broadcast television since analogue transmissions ended on 24 October 2012. Digital satellite and digital cable are also widely used.
Terrestrial television is a type of television broadcasting in which the television signal is transmitted by radio waves from the terrestrial (Earth-based) transmitter of a television station to a TV receiver having an antenna. The term terrestrial is more common in Europe and Latin America, while in Canada and the United States it is called broadcast or over-the-air television (OTA). The term "terrestrial" is used to distinguish this type from the newer technologies of satellite television, in which the television signal is transmitted to the receiver from an overhead satellite; cable television, in which the signal is carried to the receiver through a cable; and Internet Protocol television, in which the signal is received over an Internet stream or on a network utilizing the Internet Protocol. Terrestrial television stations broadcast on television channels with frequencies between about 52 and 600 MHz in the VHF and UHF bands. Since radio waves in these bands travel by line of sight, reception is generally limited by the visual horizon to distances of 64–97 kilometres (40–60 mi), although under better conditions and with tropospheric ducting, signals can sometimes be received hundreds of kilometers distant.
DVB-T, short for Digital Video Broadcasting — Terrestrial, is the DVB European-based consortium standard for the broadcast transmission of digital terrestrial television that was first published in 1997 and first broadcast in Singapore in February, 1998. This system transmits compressed digital audio, digital video and other data in an MPEG transport stream, using coded orthogonal frequency-division multiplexing modulation. It is also the format widely used worldwide for Electronic News Gathering for transmission of video and audio from a mobile newsgathering vehicle to a central receive point. It is also used in the US by Amateur television operators.
Digital terrestrial television is a technology for terrestrial television in which land-based (terrestrial) television stations broadcast television content by radio waves to televisions in consumers' residences in a digital format. DTTV is a major technological advance over the previous analog television, and has largely replaced analog which had been in common use since the middle of the 20th century. Test broadcasts began in 1998 with the changeover to DTTV beginning in 2006 and is now complete in many countries. The advantages of digital terrestrial television are similar to those obtained by digitising platforms such as cable TV, satellite, and telecommunications: more efficient use of limited radio spectrum bandwidth, provision of more television channels than analog, better quality images, and potentially lower operating costs for broadcasters.
Boxer TV Access is a Swedish brand owned by Tele2 AB providing pay television channels on the digital terrestrial television network in Sweden. Modeled on the British ITV Digital, it was founded in October 1999. Some channels on the Swedish DTT are free-to-air, but most of the channels require subscription from Boxer. Boxer has claimed to have around 500,000 subscribers by June 2016 when it was acquired by ComHem.
Digital terrestrial television in the United Kingdom encompasses over 100 television, radio and interactive services broadcast via the United Kingdom's terrestrial television network and receivable with a standard television set. The majority of digital terrestrial television (DTT) services, including the five former analogue channels, are broadcast free-to-air, and a further selection of encrypted pay TV services are also available.
Freeview is New Zealand's free-to-air television platform. It is operated by a joint venture between the country's major free-to-air broadcasters – government-owned Television New Zealand and Radio New Zealand, government-subsidised Māori Television, and the American-owned Discovery New Zealand. It consists of a HD-capable digital terrestrial television service, to around 86% of the population in the major urban and provincial centres of New Zealand, and a standard-definition satellite television service, called Freeview Satellite, covering the whole of mainland New Zealand and the major offshore islands. Freeview uses the DVB-S and DVB-T standards on government-provided spectrum.
The deployment of digital terrestrial television in Ireland has taken some time, with the first small tests being carried out in 1998. 2002 saw the cancellation and non-award of the DTT commercial licence and transmission network sale. In August 2006, a major regional DTT trial began in conjunction with major television channels in Ireland including Raidió Teilifís Éireann, TV3, TG4 and the now-defunct Channel 6. By 2008 the Broadcasting Authority of Ireland announced that three groups had come together with proposals to manage commercial DTT in Ireland.
DVB-T2 is an abbreviation for "Digital Video Broadcasting — Second Generation Terrestrial"; it is the extension of the television standard DVB-T, issued by the consortium DVB, devised for the broadcast transmission of digital terrestrial television. DVB has been standardized by ETSI.
There are four major forms of digital television (DTV) broadcast in the United Kingdom: a direct-to-home satellite service from the Astra 28.2°E satellites provided by Sky UK, a cable television service provided by Virgin Media ; a free-to-air satellite service called Freesat; and a free-to-air digital terrestrial service called Freeview. In addition, an IPTV system known as BT Vision is provided by BT. Individual access methods vary throughout the country. 77% of the United Kingdom has access to HDTV via terrestrial digital television. Satellite is the only source of HDTV broadcast available for the remaining 23%.
Digital terrestrial television in Denmark was technically launched in March 2006 after some years of public trials. The official launch was at midnight on 1 November 2009, when analogue broadcasts ceased nationwide.
In Malaysia, digital television broadcasts, DTV or DHD, can be received via cable, internet, satellite, or via free over-the-air (OTA) digital terrestrial television - much like analogue television broadcasts have been. It began in the mid-1990s with the introduction of the Astro satellite television service, now followed by new paid television services in the 2000s, as well as the digitalisation of over-the-air TV which was expected to be complete by the mid-2010s before being shelved. This article discusses various platforms where DTV is applied in Malaysia, including Digital Video Broadcasting (DVB) and Internet Protocol Television (IPTV). Following its successful nationwide digital transition on 31 October 2019, the country became the third in Southeast Asia with digital broadcasts after neighbouring Brunei and Singapore.
Television in Northern Ireland is available using, digital terrestrial, digital satellite and cable.
The digital television transition, also called the digital switchover (DSO), the analogue switch/sign-off (ASO), the digital migration, or the analogue shutdown, is the process in which older analogue television broadcasting technology is converted to and replaced by digital television. Conducted by individual nations on different schedules, this primarily involves the conversion of analogue terrestrial television broadcasting infrastructure to digital terrestrial (DTT), a major benefit being extra frequencies on the radio spectrum and lower broadcasting costs, as well as improved viewing qualities for consumers.
Saorview is the national digital terrestrial television (DTT) service in Ireland. It is owned by RTÉ and operated by 2RN.
References
- ↑ "Estonia - Official launch of DTT services". DigiTAG. 15 December 2006. Archived from the original on 19 July 2011. Retrieved 18 October 2007.
- ↑ "Teenused telekanalitele". Levira (in Estonian). Retrieved 29 January 2019.
- ↑ "Levira and ETV agreed to start HD transmissions over DTT" (Press release). Levira. 4 June 2007. Archived from the original on 12 June 2007.
- ↑ Third DTT mux for Estonia : Broadband TV News
- ↑ "Terrestrial TV broadcasting". Levira. Retrieved 29 January 2019.
- ↑ "LEVIRA DTT" (PDF). Retrieved 29 January 2019.
 | This Estonia-related article is a stub. You can help Wikipedia by expanding it. |