BAT表在宾馆电视节目表中的应用和实践

Table BAT in Hotel TV Program Application and Practice

奉化广播电视中心针对不同宾馆的需求,利用PBI QAM调制器改变不同类型用户的节目编排需求。把PBI QAM调制器的射频信号经1 310 nm光发射机调制后与原全数字电视光信号耦合,送至宾馆,对原数字电视的主频点信息进行映射后,修改NIT表和BAT表的部分参数,以符合宾馆的要求。由于在原有的数字电视信号中插入了调制器的光信号,重新对宾馆的数字电视接收指标进行评估,证明此方案切实可行。

Fenghua radio and TV Center in real work for different hotel demand, through the use of PBI QAM modulator to change different types of user programming needs. The PBI QAM modulator RF signal by 1310nm optical transmitter modulation with the original digital TV optical signal coupling, sent to the hotel. The origi- nal digital TV frequency point information mapping, modify the NIT and BAT tables some parameters to meet the requirements of the hotel. As in the original digital TV signal is inserted in the modulator optical signal, a- gain to the hotel digital television receiving indicators assessed, and proved reliable and feasible.