Digital Conversion
Digital cable is a method of delivering cable television as digital data instead of analog frequency. Many modern cable systems provide digital cable for at least part of their channel lineup.
Because many carriers continue to use analog transmission for legacy and low-numbered channels, and digital transmission for higher channels, a typical digital cable box is also able to convert traditional analog cable signals.
Despite the advance of cable-ready television sets, most users will need a cable box to receive digital channels. However, customers who do not subscribe to any digital channels can go without; many carriers provide "basic cable" service within the analog range, avoiding the need for distributing a box. However, advanced carrier services such as pay per view and video on demand will require a box.
Digital television allows higher quality and quantity of cable TV signals. Digital transmission is compressed and allows a much greater capacity than analog signals; it almost completely eliminates interference, which has always been a hindrance to the cable TV industry. Digital converters have the same purpose as analog ones but are able to receive digital cable signals. With more data than analog in the same bandwidth, the system delivers superior picture and sound quality.
Read more about this topic: Cable Converter Box
Famous quotes containing the word conversion:
“The conversion of a savage to Christianity is the conversion of Christianity to savagery.”
—George Bernard Shaw (1856–1950)