Browse Standards
1686+ standards in database
1686 result(s) found
电信设备人工控制机构操作方向的标记
Signs of operating directions of manual control mechanism of telecommunication equipments
长途通信网频分制系统频率比较导频系列
Frequency comparison pilot seriesfor the FDM systems in the toll communication network
陆地移动业务 (16k0F3E)所要求的同波道干扰标准
Co-channel interference standards required in the land mobile services (16k0F3E)
25～1000 MHz陆地移动通信网通过用户线接入公用通信网的接口参数
Interface parameters of the 25 to 1000MHz land mobile telecommunication network connecting to public telecommunication network through subscriber lines
模拟节目信号
Simulated programme signal
电视发射机测量方法
Methods of measurement for television transmitters
通用硬同轴传输线及其法兰连接器总规范
General purpose rigid coaxial transmission lines and their associated flange connectors--Generic specification
插入式耳机的乳头状接头
Nipples for insert earphones
地面无线电接力系统所用设备的测量方法 第一部分:分系统和仿真系统通用的测量 第三节:中频范围的测量
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 1:Measurements common to sub-systems and simulated systems--Section three--Measurements in the intermediate-frequency range
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 第二节 天线和无源转向器的测量
Methods of measurement for equipment used in terrestrial radio-relay systems--Part 2:Measurements for sub-systems--Section two:measurements in the antennas and passive repeaters
透射式电视高分辨率测试图
High resolution test chart of transparencies for television
透射式电视均匀性测试图
Quality of distribution test chart of transparencies for television
透射式电视重合测试图 B型
Registration test chart B of transparencies for television
透射式电视重合测试图 A型
Registration test chart A of transparencies for television
透射式电视调制度测试图
Amplitude response test chart of transparenciesfor television
透射式电视高频特性测试图
High-frequency test chart of transparencies for television
透射式电视区域测试图
Circular zone test chart of transparencies for television
透射式电视线性测试图 B型
Linear test chart B of transparencies for television
透射式电视线性测试图 A型
Linear test chart A of transparencies for television
透射式电视综合测试图
Multiple test chart of transparencies for television