Terrestrial HDTV

UK Roll-Out of Terrestrial HDTV:

HDTV is now ready to upgrade from its normal platform to terrestrial platform in the next few years time. It would take some time for additional bandwidth to be available for the broadcaster in terrestrial service but cable and satellite companies are going to implement their plan a bit faster. [3]

United Kingdom is the first country in the world with digital terrestrial services in 15th October, 1998[8]. In the United Kingdom, some public broadcaster like BBC, ITV, Channel 4 and Five had taken a trial on HD/DTT (Digital Terrestrial Transmission) over a period of five months from June to October of 2006 with 450 specially equipped household in London area. The goal of that trial was to test the technical implications of offering the HD services to the user on the terrestrial platform and to assess the customer reactions on HD/DTT. Moreover, a HD/DTT lobby group called HdforAll formed by the broadcasters of the analogue terrestrial TV. This group demands that the frequency spectrum available as switch-off the analogue terrestrial TV to be reserved for the transmission of the terrestrial HDTV services. It is seen that the Public Service Broadcaster (PSB) are facing pressure from the consumer to make their HDTV service available across all platform including terrestrial. [2]

Recently, 11th of Nov 2009, BBC announced the HD services on Freeview will be available for the 50% of the population by the time of June 2010 during the World Cup Football and 98.5% will get this service in three year's time when digital switchover will be done.[6] The Freeview HD roll out has been accelerated in an advance technology in order to bring the benefits of HD on Freeview as many people as quickly as possible so that viewers in London, Birmingham, Leeds, New Castle and Bradford receive Freeview HDTV service by the end of the March, 2010.[6] To view Freeview HD, audiences will need equipment containing this new technology. Freeview HD receivers (set-top boxes, digital television recorders and integrated televisions) will be available from early 2010. [6]

International Roll-out of HDTV

At this stage, limited HD services are available on the terrestrial television platform (HD/DDT). Traditionally, analogue technologies used to use to provide terrestrial television services however some standards like BVB-T oDVB-T2 using by digital terrestrial television makes it possible to deliver same services in digital quality. [4]

In Spain some regional broadcaster, TV3, offers few hours of HD programme in Barcelona while in Sweden some public broadcaster like SVT provides HD contents in several cities.[2] In France, DTT services started from 2005 using DBV-T. This service use six multiplexes and a DTT network, a multi-frequency network (MFN). [4] In June 2007, CSA (Conseil suprieur de l'audiovisuel) started the process of inviting the application to deploy the nationwide terrestrial network for HD using Digital Multiplex R5.[2] In Germany, television market is dominated by cable and satellite and the DTT is used for only portable reception like mobile TV. Popularity of DTT is increasing in Germany since it is introduced. In USA HDTV is available in different platform like satellite, Cable and terrestrial as well. In Korea terrestrial HDTV test started Sep 2000, simulcast started July 2001 and images format is 1080/60i. [7] In Japan and Canada HD/DTT service is available from 2003. [8]

Technical Issues for Terrestrial HDTV:

As the demand of HDTV contents is increasing, the voices raise to make HDTV platform terrestrial. Terrestrial frequencies are limited in number and in many European countries it is seen that there is not additional frequencies to accommodate another services. [9] Some countries like Australia, USA and Japan made HDTV services an important part of their terrestrial platform from the beginning but it was not the case in Europe. [2] However, some frequency spectrum will be available when current analogue terrestrial television channel will be switched off and the broadcaster might be able to use those freed-up frequency spectrum to offer HD contents on the terrestrial platform. [2]

Transition to terrestrial HDTV, it is required to simulcast of programmes with old and new systems. To accomplish this transition to new systems more efficiently broadcasters will require some additional frequency spectrum. [4]

Standards use for Terrestrial HDTV:

The DVB project is currently

Please be aware that the free essay that you were just reading was not written by us. This essay, and all of the others available to view on the website, were provided to us by students in exchange for services that we offer. This relationship helps our students to get an even better deal while also contributing to the biggest free essay resource in the UK!