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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 television (DTT), a major benefit being extra frequencies on the radio spectrum and lower broadcasting costs, as well as improved viewing qualities for consumers.
The transition may also involve analogue cable conversion to digital cable or Internet Protocol television, as well as analogue to digital satellite television. Transition of land based broadcasting had begun in some countries around 2000. By contrast, transition of satellite television systems was well underway or completed in many countries by this time. It is an involved process because the existing analogue television receivers owned by viewers cannot receive digital broadcasts; viewers must either purchase new digital TVs, or digital converter boxes which have a digital tuner and change the digital signal to an analogue signal or some other form of a digital signal (i.e. HDMI) which can be received on the older TV. Usually during a transition, a simulcast service is operated where a broadcast is made available to viewers in both analogue and digital at the same time. As digital becomes more popular, it is expected that the existing analogue services will be removed. In most places this has already happened, where a broadcaster has offered incentives to viewers to encourage them to switch to digital. Government intervention usually involves providing some funding for broadcasters and, in some cases, monetary relief to viewers, to enable a switchover to happen by a given deadline. In addition, governments can also have a say with the broadcasters as to what digital standard to adopt – either DVB-T2 or ATSC. Governments can also require all receiving equipment sold in a country to support the necessary digital 'tuner'.
Before digital television, PAL and NTSC were used for both video processing within TV stations and for broadcasting to viewers. Because of this, the switchover process may also include the adoption of digital equipment using serial digital interface (SDI) on TV stations, replacing analogue PAL or NTSC component or composite video equipment. Digital broadcasting standards are only used to broadcast video to viewers; Digital TV stations usually use SDI irrespective of broadcast standard, although it might be possible for a station still using analogue equipment to convert its signal to digital before it is broadcast, or for a station to use digital equipment but convert the signal to analogue for broadcasting, or they may have a mix of both digital and analogue equipment. Digital TV signals require less transmission power to be broadcast and received satisfactorily. [1]
The switchover process is being accomplished on different schedules in different countries; in some countries it is being implemented in stages as in Australia, Greece, India or Mexico, where each region has a separate date to switch off. In others, the whole country switches on one date, such as the Netherlands. [2] On 3 August 2003, Berlin became the world's first city to switch off terrestrial analogue signals. [3] Luxembourg was the first country to complete its terrestrial switchover, on 1 September 2006. [4]
Different standards have been developed for the broadcast transmission of digital terrestrial television, comparable to the older analogue standards they replace: NTSC, PAL and SECAM. Broadcasters around the world choose and adopt one of these to be the format and technology behind the transmission. The standards are:
The "RRC-06" agreement in Geneva (hosted by the International Telecommunication Union (ITU)) was signed by delegates from many countries, including most of Europe, Africa and Asia. The agreement set 17 June 2015 as the date after which countries may use frequencies currently assigned for analogue television transmission for digital services (specifically DVB-T), without being required to protect the analogue services of neighbouring countries against interference. This date was generally viewed as an internationally mandated analogue switch-off date, at least along national borders [35] —except for those operating on the VHF band which would be allowed until 17 June 2020. [36] [ needs update ]
These deadlines set by the agreement have been difficult to reach in certain regions, like in Africa where most countries missed the 2015 deadline, [37] as well as South East Asia. [38] High upgrade costs are often a reason cited for the slow transition in those regions.
The European Commission, on a different note, had recommended on 28 October 2009 that digital switchover should be completed by 1 January 2012. [39]
After the switch from analogue to digital broadcasts is complete, analogue-only TVs are incapable of receiving over-the-air broadcasts without the addition of a set-top converter box. Consequently, a digital converter box – an electronic device that connects to an analogue television – must be used to allow the television to receive digital broadcasts. [40] In the United States, the government subsidized the purchase of such boxes for consumers via their coupon-eligible converter box program in 2009, funded by a small part of the billions of dollars brought in by a spectrum auction. The program was managed by the Department of Commerce through its National Telecommunications and Information Administration.
Televisions with integrated digital tuners have been available for a considerable time. This means that a set-top box is usually no longer necessary with a new TV set.
Satellite broadcasting switched to digital much earlier than terrestrial broadcasting. The switchover process is much easier for satellite since only changes to the earth station equipment are needed on the transmission side and consumers are already used to having a set top box/decoder. In many places, the satellite switchover was complete before terrestrial switchover was even started. Cable on the other hand would switch off months, if not years after terrestrial would.
In countries where terrestrial is little used, the migration to digital satellite or cable is more realized.
This section's factual accuracy may be compromised due to out-of-date information.(October 2019) |
This section needs additional citations for verification .(October 2019) |
| Digital switchover by country | |||
|---|---|---|---|
| Country | DTT transmission commenced | Switch-over commenced | Switch-over completed |
| | 31 August 2014 | TBD | TBD |
| | 15 July 2004 [41] | 1 October 2019 (major cities) [42] 29 December 2020 (Televizion Klan) | |
| | 2009 | 10 November 2014 | December 2020 |
| | 2006 | 25 September 2007 | |
| | 9 September 2008 | 31 March 2026 | |
| | 2015 | 10 July 2015 | |
| | 1 January 2001 | 30 June 2010 | 10 December 2013 |
| | 26 October 2006 | 5 March 2007 | 7 June 2011 |
| | 17 June 2015 | ||
| | 25 January 2011 | 17 August 2013 | 17 June 2015 |
| | 16 July 2002 (RTBF) 31 May 2004 (VRT) | 3 November 2008 | 1 March 2010 (RTBF) 3 November 2008 (VRT) |
| | 2011 | November 2019 [44] | |
| | 3 December 2007 | 15 February 2016 | 30 December 2025 [46] |
| | 2014 [47] | 31 July 2017 [11] [48] | 31 December 2017 [11] |
| | 1 January 2009 | 1 March 2013 | 30 September 2013 |
| | 4 February 2013 | 2015 | 2023 [49] |
| | 1 March 2003 | 31 August 2011 | 14 January 2022 |
| | 2012 | 2020 | |
| | 11 January 2008 | 31 January 2014 (CCTV) 2016 (private broadcasters) | 14 May 2016 (CCTV) 2020 (private broadcasters) |
| | 2012 | 31 December 2019 | |
| | 15 August 2019 [50] | ||
| | 8 February 2019 | TBD | June 2020 |
| | 13 June 2002 | 26 January 2010 | 5 October 2010 |
| | 2013 [52] | 2023 [53] | |
| | 1 July 2011 | ||
| | October 2005 | September 2007 | 12 February 2012 |
| | 1 March 2003 | 1 November 2009 | |
| | 9 August 2021 | ||
| | 22 April 2009 | 21 December 2018 | 2022 |
| | 1 July 2010 | ||
| | 16 September 2000 (test) 27 August 2001 (properly) | 1 September 2007 | |
| | 31 March 2005 | 2 February 2010 | 29 November 2011 |
| | 17 June 2016 | ||
| | June 2015 | ||
| | 1 July 2015 | ||
| | 1 November 2002 | 1 November 2002 | 25 November 2008 |
| | 20 March 2006 | 24 September 2009 | 6 February 2015 |
| | 17 November 2010 | 17 November 2010 | |
| | October 2001 | 31 July 2013 | 31 October 2013 |
| | 2 February 2015 | ||
| | 31 December 2007 | 30 November 2020 | 30 November 2020 |
| | 26 January 2003 | 31 October 2012 | 31 December 2019 (metro cities) 31 December 2021 (+1M cities) 31 December 2023 (Everywhere else) [58] |
| | 13 August 2008 (as DVB-T) 16 October 2012 (as DVB-T2) | 17 February 2020 | 12 June 2020 |
| | 2009 | TBD | TBD |
| | 29 October 2010 | 24 October 2012 | |
| | 18 June 2009 | 24 July 2009 | |
| | 2 August 2009 | 2 August 2010 | June 2011 |
| | 1 December 2003 | 15 October 2008 | 4 July 2012 |
| | 1 December 2003 | 24 July 2010 (Northeastern Ishikawa) | 24 July 2011 (Rest of Ishikawa and 43 other prefectures) 31 March 2012 (Iwate, Miyagi, Fukushima prefectures) |
| | 17 November 2010 | 17 November 2010 | |
| | 2010 | 1 December 2018 | 1 July 2021 |
| | 26 October 2001 | 1 September 2010 | 31 December 2012 |
| | TBD | ||
| | November 2008 | 15 May 2017 | |
| | 1 June 2010 | ||
| | March 2001 | 29 October 2012 | |
| | 4 May 2004 | 1 January 2010 | 1 June 2013 |
| | January 2014 [61] [62] | 6 June 2017 [63] | 31 October 2019 [16] [17] [18] [64] |
| | 31 October 2011 | ||
| | 17 June 2014 | ||
| | 2 July 2004 | 18 July 2013 | 31 December 2015 |
| | 24 May 2011 | ||
| | July 2014 [66] [10] | 2 March 2015 [67] [68] | 2015 [10] |
| | 17 June 2015 | ||
| | March 2020 | ||
| | February 2007 | 17 June 2015 | 17 June 2020 |
| | 15 October 2013 | 2016 | 2020 (expected) [69] |
| | 13 September 2014 | ||
| | June 2018 [70] | TBD | |
| | 2002 | 11 December 2006 | |
| | 2 May 2007 | 30 September 2012 | 1 December 2013 |
| | 2012 | 2012 | TBD |
| | 1 September 2007 | 1 March 2008 | 1 December 2009 |
| | 2019 [72] | TBD | |
| | 2014 [73] | TBD | TBD |
| | 15 August 2011 | 2021 | |
| | 30 March 2010 | 28 July 2020 | 3 January 2023 |
| | 14 February 2017 | 28 February 2017 | 30 April 2023 [75] |
| | 30 September 2010 | 7 November 2012 | 23 July 2013 |
| | 29 April 2009 | 12 January 2012 | 26 April 2012 |
| | 1 January 2001 | 13 February 2012 | |
| | 1 December 2005 | 17 June 2015 | 1 May 2018 [76] |
| | 24 June 2009 | 3 December 2018 | 3 June 2019 (Far Eastern Federal District) 14 October 2019 (Other Federal Districts) |
| | 31 July 2014 [77] [78] | ||
| | 2 December 2010 | ||
| | 1 January 2001 | 13 February 2012 | |
| | 2014 | September 2019 | 2020 |
| | 2005 | 2014 | 7 June 2015 |
| | 1 January 2007 | 16 December 2013 | 1 January 2019 [79] [14] |
| | 22 December 2009 | 28 October 2010 | 31 December 2012 |
| | 1 December 2010 | 30 June 2011 | |
| | 1 February 2016 [83] | 28 October 2016 [84] | June 2019 [85] [86] |
| | 15 November 1999 | 5 April 2008 | 3 April 2010 |
| | 2020 | ||
| | April 1999 | 19 September 2005 | 15 October 2007 |
| | 24 July 2006 | 26 November 2007 | |
| | 1 January 2004 | 7 May 2012 | 30 June 2012 |
| | July 2014 | ||
| | 1 April 2014 | 1 December 2015 | 25 March 2020 |
| | 2003 | 6 March 2015 | 3 April 2015 |
| | Expected in 2020 [90] | TBD | |
| | 1 January 2001 | 13 February 2012 | |
| | 15 November 1998 | 17 October 2007 | 21 March 2010 (Wales) 22 June 2011 (Scotland) 26 September 2012 (England) 24 October 2012 (Northern Ireland) |
| | November 1, 1998 [93] | 8 September 2008 | 12 June 2009 (full power stations) [94] 1 September 2015 (Class-A low power stations) 13 July 2021 (Remaining low power stations) |
| | 18 August 2011 | 1 August 2018 | 1 September 2018 (Most other territories) 1 January 2020 (Russian-bordering regions; local channels without digital license) |
| | 2010 | 15 January 2018 | 5 December 2018 |
| | 2020 [95] | ||
| | 2002 (tests) 2015 | June 30, 2020 | December 28, 2020 [96] |
| | 31 December 2014 | ||
| External videos | |
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The provinces mentioned in the final analogue switch-off include: Hà Giang, Cao Bằng, Bắc Kạn, Tuyên Quang, Lào Cai, Yên Bái, Lạng Sơn, Điện Biên, Lai Châu, Sơn La, Hòa Bình, Kontum, Gia Lai, Đắklắk and Đắc Nông.
Since last night (at 0:00 on 28 December 2020), 15 more provinces have stopped broadcasting analogue terrestrial television. These are the provinces in group IV and also the last ones to stop broadcasting analogue terrestrial television according to the plan of the project "Digitisation of television".
{{cite web}}: CS1 maint: numeric names: authors list (link){{cite web}}: CS1 maint: archived copy as title (link)ANNOUNCEMENT Saturday, 27 December 2014 the morning will begin digital broadcasting (while stopping analogue) of the centers: Agios Athanasios Water Tower Gate Tsotyli Vounasa Royal Polygyros Delvinaki Curse Granitsopoula Igoumenitsa Korfovouni Amfilochia Those viewers covered by these centers will need to have receiver (TV or decoder) that supports MPEG4 technology and coordinate the morning of 27 December the new frequencies. Those viewers already receive terrestrial digital TV signal need not make any action.
{{cite web}}: CS1 maint: numeric names: authors list (link)Thủ tướng Chính phủ đã ban hành Quyết định số 2451/QĐ-TTg phê duyệt Đề án "Số hóa truyền dẫn, phát sóng truyền hình mặt đất đến năm 2020" (gọi tắt là Đề án Số hóa truyền hình), trong đó quy định trước ngày 31-12-2020 kết thúc phát sóng truyền hình analog tại 63 tỉnh, thành phố chuyển sang truyền hình số mặt đất.
The provinces mentioned in the analogue switch-off include: Quảng Ninh, Thái Nguyên, Ninh Bình, Bắc Giang, Phú Thọ, Đồng Nai, Bình Thuận, Bà Rịa – Vũng Tàu, Khánh Hòa, Thanh Hóa, Nghệ An, Hà Tĩnh, Quảng Bình, Quảng Trị, Thừa Thiên Huế, Quảng Nam, Quảng Ngãi, Bình Định, Phú Yên, Lâm Đồng and Ninh Thuận.
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