Browse Standards
1653+ standards in database
1653 result(s) found
同轴电缆数字线路系统进网要求
Performance requirements for digital linesystems on coaxial pair cables used in telecommunication network
电缆数字段进网要求
Performance requirements for digital sections of metallic cables used in telecommunication network
光纤机械式固定接头插入损耗测试方法
Optical fiber mechanical-type splice insertion loss test
黑白电视接收机可靠性验证试验 贝叶斯方法
Bayeses method of reliabilitydemonstration testing for black and white TV receivers
架空光缆通信系统进网要求
Requirements for aerial optical fiber cable systems joined to national public telecommunication network
对称电缆数字线路系统进网要求
Performance requirements for digital linesystems on symmetric pair cables used in telecommunication network
电视、调频广播场强测量方法
Measurement method of TV，FM broadcasting field strength
预录节目光学反射式视盘系统LV50 Hz/625行--PAL制
Pre-recorded optical reflective videodisk system Laser vision 50 Hz/625 lines--PAL
隔爆型防爆应用电视设备防爆性能试验方法
Test methods of explosion-proof performance for explosion-proof applied TV equipment with separate type
通信光缆系列 总则
The series of optical fibre cables for telecommunication--General
TDM/FDM 60路复用转换设备技术要求
Technical requirements for TDM/FDM 60-channel transmultiplexing equipment
光缆数字线路系统技术规范
Technical specification for digital line systems on optical fibre cables
60路PCM/ADPCM编码转换设备技术要求
Technical requirements for a 60-channel PCM/ADPCM transcoder equipment
电信线路磁感应纵电动势和对地电压、电感应电流及杂音计电压的测量方法
Measuring methods of the magnetic induced longitudinal EMF， magnetic induced voltage with respect to earth， electric induced current and psophometric voltage ontelecommunication lines
直流放大器特性和测试方法
Direct current amplifiers--Characteristics and test methods
移动通信设备 运输包装
Mobile communication equipments--Transport package
纤维光学分路器 第一部分:总规范 (可供认证用)
Fibre optic branching devices--Part 1:Generic speci-fication
中距离地面模拟无线电接力系统彩色电视调制机和解调机(1路电视和4路伴音)技术条件
Specification for colour TV modulation and demodulation equipment(1TV+4 sound program)used in middle distance terrestrial analog radio-relay systems
微波通信系统远程监控设备技术条件
Specification for microwave communication system remote supervisory and control equipment
4 GHz微波联络机技术条件
Specification for 4GHz band microwave service channel equipment