IEC 60835-2-4 Edition 1.1-1998 数字微波无线电传输系统使用设备的测量方法.第2-4部分:地面无线电中继系统的测量.包括调制器/解调器的发射机/接收机

标准号：IEC 60835-2-4 Edition 1.1-1998
中文标准名称：数字微波无线电传输系统使用设备的测量方法.第2-4部分:地面无线电中继系统的测量.包括调制器/解调器的发射机/接收机
英文标准名称：Methods of measurement for equipment used in digital microwave radio transmission systems - Part 2-4: Measurements on terrestrial radio-relay systems; Transmitter/receiver including modulator/demodulator
标准类型：M34
发布日期：1999/12/31 12:00:00
实施日期：1999/12/31 12:00:00
中国标准分类号：M34
国际标准分类号：33.060.30
适用范围：This Section of IEC 60835-2 deals with methods of measurement for transmitters including modulators, and receivers including demodulators, used in digital radio-relay systems. Measurements for adaptive equalizers are given in IEC 60835-2-8. Methods of measurement for the a.g.c. characteristic, selectivity and noise figure and receiver local oscillator frequency are generally applicable only when the receiver i.f. output is accessible. This may not be the case for receivers used in systems having a microwave demodulator or a low bit rate, e.g. below 2 Mbit/s.