YD 5021-1996.Provisional Standards of SDH Engineering Design for Long-Distance Optical Fibre Cable Transmission Project.1总则1.0.1适用于新建及改、 扩建SDH长途光缆传输...
YD 5022-1996.Design Code for Public Packet Switched Data Network Engineering.1总则1.0.1为了使公用分组交换数据网网络设备安装工程的设计有所依据,特制定本...
YD 5023-1996.The Engineering Design Standard for the User Access Network.1总则1.0.1用户接入网工程设计暂行规定(以下简称“本规定”)是为加强邮电基本建设...
GY/T 176-2001.Technical specification and regulation for the results of MW and SW broadcasting monitoring.1范围GY/T 176规定了中、短波广播效果监测的项目、内容、方...
GY/T 177-2001.Technical specifications and methods of measurement for television transmitters.1范围GY/T 177规定了符合GB 3174- -1995《PAL--D 制电视广播技术规范》的...
GY/T 178-2001.Operation and maintenance regulation of MW and SW antennas and feed lines.1范围GY/T 178适用于功率在1 kW及以上的中、短波天馈线系统及其附属设备的...
GY/T 179-2001.Operation and maintenance regulation of transmitting station for radio and TV.1范围GY/T 179规定了广播电视发射台(以下简称发射台)的运行维护任务和...
YD/T 1500-2006.Testing Methods of Multimedia Messaging Service Center in Digital Cellular Mobile Telecommunication Network.1范围YD/T 1500规定了数字蜂窝移动通信网多媒体...
YD/T 1484-2006.Measurement Method for Radiated RF Power and Receiver Performance of Mobile Stations.1范围YD/T 1484规定了移动台的空间射频辐射功率和接收机性能测量...
YD/T 1483-2006.Technical requirement and measurement method of spurious emission of radio equipments.1范围YD/T 1483规定了无线电设备杂散发射的限值的应用、杂散域...
