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Channels 21 to 60 used for DVB-T Digital TV broadcasting in the UK, with the exception of Channel 38, which is used for programme making and special events. Channels 61 to 69 used for 4G LTE . Channel 69 was not used for TV broadcasting in the UK, it was used by the MOD and until 2012 for programme making and special events .
The five main ATSC formats of DTV currently [when?] broadcast in the U.S. are: . Standard definition—480i, to maintain compatibility with existing NTSC sets when a digital television broadcast is converted back to an analog one [citation needed] —either by a converter box or a cable/satellite operator's proprietary equipment
The Pan-American television frequencies are different for terrestrial and cable television systems. Terrestrial television channels are divided into two bands: the VHF band which comprises channels 2 through 13 and occupies frequencies between 54 and 216 MHz, and the UHF band, which comprises channels 14 through 36 and occupies frequencies between 470 and 608 MHz.
Channel numbers in ATSC do not correspond to RF frequency ranges, as they did with analog television. Instead, virtual channels , sent as part of the metadata along with the program(s), allow channel numbers to be remapped from their physical RF channel to any other number 1 to 99, so that ATSC stations can either be associated with the related ...
QAM is a digital television standard using quadrature amplitude modulation. It is the format by which digital cable channels are encoded and transmitted via cable television providers. QAM is used in a variety of communications systems such as Dial-up modems and WiFi.
A television channel, or TV channel, is a terrestrial frequency or virtual number over which a television station or television network is distributed. For example, in North America , channel 2 refers to the terrestrial or cable band of 54 to 60 MHz , with carrier frequencies of 55.25 MHz for NTSC analog video ( VSB ) and 59.75 MHz for analog ...
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 television ...
The trial DDTV service will of current "current" 2 analogue TV channels (i.e. Modernine TV and TV3) in digital, and 2 new digital-only channels, namely MCOT 1 and ASEAN TV. Also provided under the service are seven FM radio stations in digital audio and interactive services.