At present our country has cable digital TV, digitalterrestrial television and IPTV three digitaltransmission program.
目前我国已有有线数字电视、地面数字电视和IPTV三种数字节目传输方式。
2
Tells the terrestrialdigital broadcast system work mode, satisfy business, Transmission network operation is good, To ensure quality of receiving, More guarantee network normal operation.