Digital Tv: the New Golden Age of TelevisionOn February 17, 2009, Americans will enter the age of digital television — ready or not. On that date, all full-power broadcast television stations will begin broadcasting only in digital, improving sound and picture quality as well as allowing for stations to offer multiple programming choices, called multicasting. The government-mandated change will free up needed frequencies for public safety and new wireless communication offerings. What’s the difference between analog and digital? Since television was invented, stations have broadcast analog signals, or continuously varying radio waves. The familiar “snow” or ghosting of images is one problem with this way of sending broadcast signals. Another issue is the limited
Digital Tv: the New Golden Age of Television
Posted in Electronics by gadgetgeezer 613 days ago« previous1 next »
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