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Digital TV
There is a great chance that you have heard
about digital television, but, what is this
system really about? Here I put at your
disposal some explanations that I hope are
useful to solve some of your questions. |
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When your turn on your television what you are tuning is the
analog signal, and even though many
cable companies improve
the signal and image quality, this might remain sensitive to
many failures such as storm interference or blurred images.
Digital television presents itself as one of the solutions that
could end these series of imperfections, besides from that, the
sound and quality of the image would be considerably superior (similar
to the one that a DVD offers), you would also have the chance of
programming and receiving several signals at once, the user
would also be able of interacting with the options this system
offers without forgetting the possibility of getting online. |
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Digitalization will change the way we receive the
signal in our television, it will become much safer and in that
way channel companies will be sure that their offered service
will reach their clients in a better condition.
but if you are one of the many people interested and think that
you would have to upgrade your TV to a much modern one in order
to receive this signal, it won�t be necessary, because there are
various types of decoders that allow any television to receive
the digital signal in the same way they used to receive the
analog signal, without having to worry to change their systems. |
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Currently there are three standards for the
digital signal, the american (aTSC), which is focused in
offering a greater image quality; the European (DVb), focused on
the diffusion of channels using only one type of signal, and the
Japanese (ISDb), which highlights the chance of using mobile
media for the reception of the signal. |
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In the countries in which people are already using this type of
technologies, meaning the digital signal, they have set a date
in which the analogue signal will stop been diffused, this has
been designated as the �technological blackout�.
but in some
other countries, in which this has not been planned yet, years
will have to pass before a definite cut of the signal is
performed; this cut would become a reality for those who are
gradually buying the new equipments, for example in countries
such as United States and Spain, the total cut of the analogue
signal will be performed between 2009 and 2012 and this is
because they have been working in this system for more than five
years.
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Even when there are some years remaining until this system
reaches your country, it is still good to be informed and ready
for the new era in a matter of television signals, this is why I
would advise you to check once in a while your country�s
communication ministry�s website, so you are aware of the news
regarding the change of analog to digital signal, because an
ounce of prevention is better than a pound of cure. I hope these
recommendations are useful for you.
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Tv broadcasting Handbook,TV
Transmitters,TV
Repeaters,analog
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