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数字电视(DTV)发射机经历了近10年的技术开发和准备。在美国DTV地面广播的有关标准至1996年已经完备,FCC(联邦通信委员会)于今年4月初宣布了DTV地面广播的实施计划,给全美现有的约1600个TV发射台发了用于DTV广播的新频道和许可证,并要求在10个最大的收视区需于18个月之内实现DTV播出,要求至2006年全部终止
Digital television (DTV) transmitters have undergone nearly 10 years of technological development and preparation. In the United States DTV terrestrial broadcasting standards have been completed by 1996, the FCC (Federal Communications Commission) announced in early April this year, DTV terrestrial broadcasting implementation plan to the nation’s existing about 1600 TV transmitters made for DTV broadcasting Of the new channels and permits, and requires the 10 largest viewing area to be within 18 months to achieve DTV broadcast, requiring termination of all of 2006