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t. e. Digital television (DTV) is the transmission of television signals using digital encoding, in contrast to the earlier analog television technology which used analog signals. At the time of its development it was considered an innovative advancement and represented the first significant evolution in television technology since color ...
Digital television sets (equipped with ATSC tuners) are often capable of viewing a baseline set of unencrypted digital programming, known as basic cable or low-tier channels, which typically include local network television affiliates. According to FCC regulations, television providers must provide "separable security" for accessing encrypted ...
Digital terrestrial television (DTTV, DTT, or DTTB) is a technology for terrestrial television, in which television stations broadcast television content in a digital format. Digital terrestrial television is a major technological advancement over analog television, and has largely replaced analog television broadcasting, which was previously ...
Digital TV encoding allows stations to offer higher definition video and better sound quality than analog, as well as allowing the option of programming multiple digital subchannels (multicasting). However, it provides these advantages at the cost of a severe limitation of broadcast range. [citation needed]
Map of digital terrestrial television broadcasting standards by country. All modern high-definition broadcasts utilize digital television standards. The major digital television broadcast standards used for terrestrial, cable, satellite, and mobile devices are: DVB, originating in Europe and also used in much of Asia, Africa, and Australia
Map of digital terrestrial television broadcasting systems by country. This is a list of digital television deployments by country, which summarises the process and progress of transition from analogue to digital broadcasting. The transition to digital television is a process that is happening at different paces around the world.
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