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This thread is totally regarding the Digital cable and its usage in era. Digital cable may be a form of cable TV that's unfold through video compression. This technology was launched and originally belonged to Motorola. Most of cable corporations born-again their analog system to digital in between 2000s. They born-again tv signals into digital format of telecasting and this wasn't compatible with previous analog systems. Digital television system expend services like pay per read programming for giving higher resolution and in high definition video to the purchasers. conjointly introduces new programs of cable web and cable phone service. For security purpose in digital systems signals area unit extremely encrypted this step reduced the cable thievery that was terribly high in analog television system.

History of digital cable:

It was general instrument that later nonheritable by Motorola company WHO in 1990 confirmed that in a very vi rate frequency channel it's attainable that we are able to deliver top quality HD TV by exploitation digital compression. thus GI showed transmission of quite one top quality programs on vi rate channel. thus once looking at the importance of this new technology in Nineteen Nineties cable suppliers started finance their cash during this new multi-channel TV technology for increasing the quantity of channels and different services accessible to customers.
As the competition was increasing in satellite programming like DirecTV, Prime Star and in Dish Network and different reason was users were currently taking interest in pay per read and digital services and high speed web services thus as a lead to 2000 era most of cable suppliers were providing some services of digital cable to their client for extant within the increasing competition.
This was solely attainable by Digital cable technology that cable suppliers were providing 2 manner communication ability and compressed video channels in less frequency house. thus by this technology and technique they will supply a lot of channels and while not exploitation phone line they will give different services like video on demand, phone services and high speed web. conjointly there's an extra profit that security risks area unit less during this technology and this digital cable technology provides less error streaming of signals thus quality is mechanically inflated during this system and there's no chance of thievery and different crimes.
Most of digital cable suppliers use QAM customary for video facilities and DOCSIS standards for information service. Some suppliers have conjointly begin to arising video services exploitation IPTV customary or switched video.

Channels in digital cable:

In previous days frequency house within which just one channels was running currently daily in digital technology several channels will be run on this house. however range of channels depend upon the compression utilized in video. several suppliers will fill one analog frequency of channel with 2 HD channels or with ten South Dakota channels that is incredibly useful and economical currently a days and conjointly with higher compression several suppliers will add quite this channels into one frequency. however higher channels suggests that lower the standard of channels.
When we add a lot of skills in channel it complicates the notion in digital cable physical channel and sub-channel area unit formal names of 2 range that establish channel. thus as a result we are able to say digital cable revolutionize the TV world and this technology offer US pleasant expertise in video quality and different services.
 
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