IEC 60728-5:20 15规定了地面广播和卫星接收系统前端中使用的设备的特性（没有卫星室外单元，也没有IEC 60728-3中描述的前端中的宽带放大器）。它: -覆盖5MHz至3000MHz的频率范围； -确定某些参数的性能要求； -规定某些参数的数据公布要求； -规定测量方法； -引入定义质量等级（Q级）的最低要求。这第三版取消并取代了2007年出版的第二版。本版构成技术修订版。与上一版相比，此版本包括以下重大技术变更: -引言的新文本，遵循IEC TC 100/TA 5的范围；-将IPTV引入范围； -根据DVB-T2标准的数字地面电视信号的头端规范； -根据DVB-S2标准的有线网络中的数字电视信号的头端规范。

IEC 60728-5:2015 specifies the characteristics of equipment used in the headends of terrestrial broadcast and satellite receiving systems (without satellite outdoor units and without those broadband amplifiers in the headend as described in IEC 60728-3). It:
- covers the frequency range 5 MHz to 3 000 MHz;
- identifies performance requirements for certain parameters;
- lays down data publication requirements for certain parameters;
- stipulates methods of measurements;
- introduces minimum requirements defining quality grades (Q-grades). This third edition cancels and replaces the second edition published in 2007. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition:
- new text for the introduction, following the scope of IEC TC 100/TA 5;
- introduction of IPTV to the scope;
- headend specification for digital terrestrial TV signals according to the DVB-T2 standard;
- headend specification for digital TV signals in cable networks according to the DVB-S2 standard.