Digital Terrestrial Television (2000)
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Title: "Digital Terrestrial Television (2000)"
Digital television has been mainly ensured by three types of supports: cable, satellite and terrestrial broadcasting (the latter is still not available in Portugal). More recently, other systems have emerged, such as, among others, systems based on asymmetric digital subscriber lines – ADSL – or on fibre-to-the home – FTTH, which are founded respectively in telephone service pair copper lines and in optic fibre to the home, both of which are in line as possible alternatives in the short and medium term.
The Digital Terrestrial Television (DTT) uses the radio spectrum as a means of transmission. In view of the current analogue systems, DTT provides a far more efficient use and, therefore, considerable savings of the radio spectrum. There is thus a possibility that the spectrum may be used in other types of electronic communication services, or even for the increase of the television offer itself (at the level of the number of programs), reinforcement of the quality thereof (for example, high definition television) and introduction of new features (at the mobility and interactivity levels).
The European Commission has stimulated the introduction of the digital television, namely, through the transition from the analogue to digital radio broadcasting. In this context, and according to the eEurope Action Plan, State Members had to publish, up to the end of 2003, their intentions concerning the switchover policy (deactivation of the analogue system). The Commission has also stimulated these matters through its action as regards standardization and interoperability.
The launching of DTT and subsequent termination of the respective analogue service thus represent a technological, social and economic inevitability, allowing the release of the radio spectrum resources and, therefore, enabling an optimization of its use, through the creation of new offers.
In 2000, the Conference on Digital Terrestrial Television (DVB-T) was organised by the Portuguese authorities responsible for the audiovisual and telecommunications sectors within the scope of the Portuguese Presidency of the Council of the European Union. The conference brought together key market players and regulatory authorities in order to assess market and technical issues arising from the introduction of Digital Terrestrial Television in the single market.
Conference on Digital Terrestrial Television (DVB-T) - February of 2000http://www.anacom.pt/template12.jsp?categoryId=2969
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