GSO IEC 60487-2-4:2015
地面无线电中继系统中使用的设备的测量方法 第2部分：子系统的测量 第4节：频率调制器

Methods of measurement for equipment used in terrestrial radio-relay systems. Part 2: Measurements for sub-systems. Section Four: Frequency modulators

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标准号

GSO IEC 60487-2-4:2015

发布

2015年

发布单位

GSO

当前最新

GSO IEC 60487-2-4:2015

 

 

适用范围

Methods are given in this section for the measurement of the electrical characteristics of frequency modulators. Furthermore, where possible, only measurements involving the basic modulator are considered, that is excluding the baseband section comprising the pre-emphasis network and the networks associated with sound sub-carrier signals, pilot signals and auxiliary signals. Methods of measurement for frequency demodulators are given in Section Five. Measurements between baseband terminals of modulator/demodulator assemblies are covered by various sections of Part 3 of this publication.

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