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2001年八九月份我台和网络公司联合对数字电视的开路发射进行了实验,发射频率用的是19ch,收视效果很是满意。设备是武汉长江电讯提供的数字调制器,将澳门卫视的三套节目(其中一套是彩条)压缩到一个频道内发射,用数字接收机接收效果很好。十二月份网络公司在CATV中开了几套数字电视,用机顶盒解调后即可收看。它的开通标志着十堰地区的数字电视已走在了前面,让老百姓可以看上更多、清晰度更高的电视节目。
In August and September 2001, we conducted an experiment on the open-circuit emission of digital television jointly with Taiwan’s Internet companies. The transmission frequency was 19ch, and the viewing effect was very satisfactory. The device is a digital modulator provided by Wuhan Yangtze Telecom. Compressing three sets of programs of Macau Satellite TV (one of them is a color bar) into a channel and launching it with a digital receiver is very effective. December network companies in the CATV to open several sets of digital TV, with the set-top box can be viewed after demodulation. Its opening marks the digital TV in Shiyan area has gone in front, so that people can see more people, higher definition television programs.