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What is the difference between analog and digital television (DTV)?

April 26, 2017analog digital DTV qca quad cities television

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What is the difference between analog and digital television (DTV)?

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Analog television service is the traditional TV system and has been the standard broadcast technology since the inception of television. Digital television (DTV) is the newest broadcasting technology. It allows the transmission of pictures with higher resolution for better picture and sound quality. There are two main types of digital signals—standard definition (SDTV) and high definition (HDTV). “Standard definition” digital TV pictures are a big improvement over analog signals but do not provide the full impact of HDTV. What is high definition TV (HDTV)? How is it different from analog television and SDTV? HDTV provides high resolution programming and uses a “widescreen aspect ratio.” “Aspect ratio” is a comparison of screen width to screen height. For an Analog television the screen is 4 units wide by 3 units high. HDTV is similar in look to a movie theater screen, with a 16 by 9 aspect ratio. Why are we switching to DTV? The decision to convert from analog to digital broadcasting w