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Follow on Google News | Digital TV: Perfect picture quality, superb soundYou might have faced ghosting of images, dull audio sound, unclear graphics on your satellite or cable television connection. Now, get rid of those bitter experiences and enjoy clear crisper image with great quality sound.
By: Andrew Gomes In digital TV, the TV signals are broad casted on low bandwidth. Signals transmitting on low bandwidth provide you better picture quality. Digital TV is popular for offering high end picture and sound quality. Analog television sets use magnetic waves to transmit the audio and video signals whereas digital sets use digital signals to provide superior audio and video quality. Quality of picture is determined by the resolution in pixels. More number of pixels means better image quality. Regular analog system has a resolution of 512 x 400 pixels. Simple computer has resolution of 640 x 480. The high quality monitors or DTVs provides ten times better picture quality than analog. Digital television runs many different picture formats which are defined by the combination of size, width to height ratio and interlacing. Various picture formats that can be transmitted over Digital Television are: High Definition Television (HDTV) Standard Definition TV (SDTV) The quality of these new digital transmissions will set the standards for the future of broadcasting. SDTV is a lower resolution picture than HDTV. The difference between SDTV and HDTV is that signal on SDTV is more compressed than that of HDTV. Because the digital signal is compressed, broadcasters can transmit five SDTV programs, whereas HDTV can only broadcast a single program. Multiple program broadcasting is known as multicasting. It was not earlier available with analog transmissions. The picture definition of SDTV is also slightly lower than that of HDTV. If you want to take digital TV services, free3gmobilephoneoffers is a good site where you can apply for services of leading digital TV providers. The list of digital TV providers available on our site include: Top Up TV, BT vision, Virgin Media, Sky TV, Tiscali TV etc. End
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