What is digital television?
Digital television (DTV) is a new type of broadcasting technology that is transforming television, as we now know it. By transmitting the information used to make a TV picture and sound as data bits (like a computer), a digital broadcaster can transmit programming that contains more information (such as high definition images with increased resolution) than is currently possible with analog broadcast technology. The difference between analog and digital broadcasting is similar to that between compact discs and cassette tapes. Digital TV offers a better viewing experience with vastly improved picture and sound quality. Since analog TV uses up so much more of the valuable RF spectrum, broadcasters could only transmit one channel at a time, over a given frequency. Using the same amount of spectrum, a digital signal lets stations broadcast up to four or more programs at once. This is known as multicasting.
Digital television (DTV) is a new type of broadcasting technology that is transforming television, as we now know it. By transmitting the information used to make a TV picture and sound as “data bits” (like a computer), a digital broadcaster can transmit programming that contains more information (such as high definition images with increased resolution) than is currently possible with analog broadcast technology. The difference between analog and digital broadcasting is similar to that between compact discs and cassette tapes. Digital TV offers a better viewing experience with vastly improved picture and sound quality.
