All the TV and radio television programs of the day and tonight can be viewed by accessing the sites of the various broadcasters.
DTT
Digital terrestrial television or DTT is a type of terrestrial television broadcast that uses a digital signal instead of the analog signal.
The electromagnetic wave that is transmitted through the digital system carries a stream of binary data, the bits, which allows the signal to arrive at its destination intact and without distortion contrary to what occurs with the analog system which can cause loss of quality where the signal it is poor or disturbed.
A significant data flow can be incorporated in the digital signal which can include, in addition to the audio and video of the programs, also interactive and non-interactive additional services.
It is possible to purchase televisions with a built-in digital terrestrial decoder or purchase a separate decoder.
There are a large number of free programs that can be viewed on digital terrestrial and others for a fee using a rechargeable access card or supplied with a subscription to enjoy additional programs.
With digital terrestrial technology it is possible to transmit multiple programs on the same frequency instead of just one as for analogue transmissions and this actually increases the available channels.
In addition, since lower transmission power is required compared to the analog system, the number of repeaters located throughout the territory can be reduced by reducing pollution by electromagnetic waves.
The video signal transmitted is in mpeg 2 digital format, like that of classic video DVDs, and the audio signal has distinctly hi-fi characteristics.
Radio
The radio, which simultaneously broadcasts sound content composed mainly of voices and music, represents a widespread means of mass communication.
The electronic device that is used to listen to the radio allows you to listen to the various radio stations, transmitting in frequency or amplitude modulation, through a special internal tuner.
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The radio broadcasters can be divided into groups including generalist radios, with programs of various types, thematic radios, with transmissions dedicated to a particular theme, local or national radios according to the territory covered by the emitted signal.
One of the main objectives of a radio is, in most cases, to reach a certain number of listeners often set as a goal to allow greater advertising revenue and with them the coverage of expenses.
A radio program is usually entrusted to one or more speackers with the task of entertaining the spectators while keeping the attention alive and arousing interest, for example by listening to good music or interviewing some character on a certain topic.
In a radio station, in addition to the specker, the director is also very important, who makes adjustments to the music to intersperse the words of the speacker or to enable the microphone to make other people present intervene.
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