电视信号, 声音信号和交互服务用电缆网络. 第1-2部分: 操作中系统出口处传输信号的性能要求(TA 5)

[中文适用范围]： 此部分IEC 60728标准提供了在运行状态下，系统出口或终端输入处必须满足的最低性能要求，并描述了接收信号中存在的失真以及CATV/MATV/SMATV电缆网络（包括单独接收系统）产生的失真的求和准则。该标准适用于旨在为电视信号、声音信号和交互式服务运行的电缆网络，操作频率范围约为5 MHz至3 000 MHz。对于使用无线双向通信技术（5 GHz至6 GHz频段）在房间内（或少数相邻房间）替代有线连接的室内分配技术，频率范围扩展至6 000 MHz。 [外文原描述]： IEC 60728-1-2:2014 provides the minimum performance requirements to be fulfilled in operation at the system outlet or terminal input and describes the summation criteria for the impairments present in the received signals and those produced by the CATV/MATV/SMATV cable network, including individual receiving systems. It is applicable to cable networks intended for television signals, sound signals and interactive services operating between about 5 MHz and 3 000 MHz. The frequency range is extended to 6 000 MHz for home distribution techniques that replace wired cords with a wireless two way communication inside a room (or a small number of adjacent rooms) that uses the 5 GHz to 6 GHz frequency band. This second edition cancels and replaces the first edition published in 2009, and constitutes a technical revision. It includes the following technical: update of performance requirements in Clause 7 to include those for DVB-T2 signals. This publication is to be read in conjunction with IEC 60728-1:2007.