Browse Standards

地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第三节 黑白和彩色电视传输的测量

Methods of measurement for aquipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section three--Measurements for mono-chrome and colour television transmission

地面无线电接力系统所用设备的测量方法 第二部分:分系统的测量 第九节 备用通道倒换设备

Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Mesurements for sub-systems--Section nine--Stand-by channel switching equipment

地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第四节 频分复用传输的测量

Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section four--Measurementsfor f.d.m. transmission

地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第五节 相互干扰的测量

Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section five--Measurement of mutual inter-ference

地面无线电接力系统所用设备的测量方法 第二部分:分系统的测量 第七节 发射机

Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section seven--Radio trsnsmitters

地面无线电接力系统所用设备的测量方法 第二部分:分系统的测量 第五节 频率解调机

Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section five--Frequency demodulators

30 MHz～1GHz声音和电视信号的电缆分配系统 机电配接值

Cabled distribution systems primarily intended for sound and television signals operating between30 MHz and 1 GHz--Electrical and mechanical matching values

模拟微波接力通信系统8 GHz微波通信设备总技术条件

General specifications for 8GHz band microwave communication equipment used in analogue radio-relay systems

地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第六节:声音节目传输的测量

Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section six--Measurements for sound-programme transmission

地面无线电接力系统所用设备的测量方法 第三部分:仿真系统的测量 第二节:基带测量

Methods of measurement for equipment used in terrestrial radio-relay systems--Part 3:Simulated systems--Section two--Measurements in the baseband

调音台基本特性测量方法

Methods of measurement for the fundamental characteristics of mixing console

调频、电视广播接收机用300Ω/75Ω 平衡-不平衡阻抗变换器

300Ω/75Ω balun for FM and TV broadcast receiver

调频接收机中间频率

Intermediate frequency of FM receivers

频率响应测试唱片

Frequency response test record

在电话自动交换网上使用的标准化300比特/秒全双工调制解调器

300 bits per second duplex modem standardized for use in the general switched telephone network

在数据通信领域中通常同集成电路设备一起使用的平衡双流接口电路的电气特性

Electrical characteristics for balanced double-current interchange circuits for general use with integrated circuit equipment in the field of datacommunications

在数据通信领域中通常同集成电路设备一起使用的非平衡双流接口电路的电气特性

Electrical characteristics for unbalanced double-current interchange circuits for general use with inte-grated circuit equipment in the field of data communications

音频脉冲编码调制特性

Characteristics of pulse code modulation for voice-frequencies

校准测耳机用的宽频带型仿真耳

An artificial ear of wide band type for the calibration of earphones used in audiometry

在租用电话型电路上使用的带人工均衡器的标准化的4800比特/秒调制解调器

4800 bits per second modem with manual equalizer standardized for use on leased telephone-type circuits