有线电视新业务—数字电视

New Business of CATV——DTV

介绍了有线电视正在兴起的数字电视业务 ,阐述了数字电视的主要优点及数字电视的调制方式 ,以及数字有线电视的有条件接收和数字机顶盒 。

Gives an introduction of developing business of DTV by means of CATV. And introduces the advantages, the adjusting methods, the conditioned access and the DSTB of DTV.Outlines the transmission plan of DTV in Liupanshui City and the significance of the development of DTV.