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Digital Video Broadcasting (DVB) is a set of international open standards for digital 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 Standards Institute (ETSI), European Committee for Electrotechnical Standardization (CENELEC) and European Broadcasting Union (EBU).
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 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.
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.
Film4 is a British free-to-air television network owned by Channel Four Television Corporation launched on 1 November 1998, devoted to broadcasting films. While its standard-definition channel is available on Freeview and Freesat platforms, its high-definition variant is offered only as a pay television service.
Free-to-air (FTA) services are television (TV) and radio services broadcast in clear (unencrypted) form, allowing any person with the appropriate receiving equipment to receive the signal and view or listen to the content without requiring a subscription, other ongoing cost, or one-off fee. In the traditional sense, this is carried on terrestrial radio signals and received with an antenna.
Datacasting is the broadcasting of data over a wide area via radio waves. It most often refers to supplemental information sent by television stations along with digital terrestrial television, but may also be applied to digital signals on analog TV or radio. It generally does not apply to data which is inherent to the medium, such as PSIP data which defines virtual channels for DTT or direct broadcast satellite systems; or to things like cable modem or satellite modem, which use a completely separate channel for data.
In most telecommunications organizations, a virtual channel is a method of remapping the program number as used in H.222 Program Association Tables and Program Mapping Tables to a channel number that can be entered via digits on a receiver's remote control.
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.
Sky+ HD was the brand name of the HDTV service launched by Sky plc on 22 May 2006 in the United Kingdom and Ireland to enable high definition channels on Sky to be viewed. For the first two years after launch, the service was branded Sky HD. The service requires the user to have a Sky+ HD Digibox and an HD ready TV. A subscription to the original HD pack carries an extra fee of £10.25 a month in addition to the standard Sky subscription, allowing customers to view HD channels corresponding to the channel packs subscribed to. Additional Pay-Per-View events on Sky Box Office HD are not available to customers unless they subscribe to the Sky HD pack.
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.
In broadcasting, digital subchannels are a method of transmitting more than one independent program stream simultaneously from the same digital radio or television station on the same radio frequency channel. This is done by using data compression techniques to reduce the size of each individual program stream, and multiplexing to combine them into a single signal. The practice is sometimes called "multicasting".
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%.
Television in Italy was introduced in 1939, when the first experimental broadcasts began. However, this lasted for a very short time: when fascist Italy entered World War II in 1940 all transmissions were interrupted, and were resumed in earnest only nine years after the end of the conflict, on January 3, 1954.
Television in Croatia was first introduced in 1956. As of 2012 there are 10 nationwide and 21 regional DVB-T television channels, and more than 30 other channels either produced in the Republic of Croatia or produced for the Croatian market and broadcast via IPTV, cable or satellite television. The electronic communications market in Croatia is regulated by the Croatian Regulatory Authority for Network Industries (HAKOM), which issues broadcast licenses and monitors the market. The DVB-T and satellite transmission infrastructure is developed and maintained by the state-owned company Odašiljači i veze (OiV).
Freeview is the name for the collection of free-to-air services on the Digital Terrestrial Television platform in the United Kingdom. The service was launched at 5 am on 30 October 2002 and is jointly operated by its five equal shareholders – BBC, ITV, Channel 4, BSkyB and transmitter operator Arqiva. This article documents the history of the Freeview service, from its inception up to the present.
Europa 7 HD is an Italian group of channels aired since 11 October 2010. It's one of the first broadcasters in the world to use the DVB-T2 technology, after United Kingdom's channels BBC HD, ITV HD and Channel 4 HD.
References
- ↑ Pekic, Branislav (2018-11-07). "Italy's Europa 7 seeks partner for pay-TV venture". Advanced Television. Retrieved 2021-08-14.
{{cite web}}: CS1 maint: url-status (link) - ↑ Landini, Roberto (2012-12-04). "Europa 7's Francesco Di Stefano on a bright future for DVB-T2". SVG Europe. Retrieved 2021-08-14.
{{cite web}}: CS1 maint: url-status (link) - ↑ "Complimenti! Hai registrato il tuo dominio in OVH!".
- 1 2 3 EUROPA 7 HD, LUNEDI' 11 OTTOBRE AL VIA LE TRASMISSIONI DEI 12 CANALI.
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