标准摘要
[中文适用范围]： 讨论对传输性能可能很重要的特性的测量方法（幅度/频率特性、群延迟/频率特性、am-pm 转换和 am 压缩）。开车的必要性 [外文原描述]： Deals with methods of measurement of the characteristics which may be of importance for the transmission performance of microwave systems with digital modulation. The need to carry out any particular measurement and the limits to be met depend, for example, on the bit rate and the method of modulation.
英文名称Methods of measurement for equipment used in digital microwave radio transmission systems - Part 1: Measurements common to terrestrial radio-relay systems and satellite earth stations - Section 3: Transmission characteristics