标准摘要
[中文适用范围]： 适用于频率调制器的电气特性，包括阈值方面。在可能的情况下，仅涉及基本调制器的测量，即排除去加重网络和与声音载波si相关的网络 [外文原描述]： Gives methods of measurement for the electrical characteristics of frequency demodulations. Where possible the measurements are limited to the basic demodulator excluding the de-emphasis network and the networks associated with sound sub-carrier signals, pilot signals and auxiliary signals.
英文名称Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Five: Frequency demodulators