GY/T 150-2000.Methods of measurement for satellite digital television receive- only earth station measurement.4.13.3结 果表示法用曲线表示或用文字表示。4. 14 2T波相位...
GY/T 149-2000.Methods of measurement for satellite digital television receive一only earth station一system measurement.3.4.9.2测量方法按图1连接。视频信号发生器送出带...
GY/T 148一2000.Specification of measurement for satellite digital television receiver.1范围GY/T 148规定了卫星数字电视接收机技术要求。GY/T 148适用于卫星数字电...
GY/T 147一2000.General technical requirements for satellite digital television earth receive一only station.1范围GY/T 147规定了卫星数字电视接收站的技术要求。GY/...
GY/T 121 - 1995.Mothods of masurement on cable television systems.引线，输入端口给予終接。对于其它频道，应断开基带视频信号,并且给予终擞不得采用关...
GY/T 145-2000.Specification for mana gement of network element information model of broadcast and TV SDH backbone network.1范围GY/T 145规定了我国广播电视SDH干线网网元管...
YD/T 5182-2009.Provisional Specification of Mobile Basestation Design for The Third Generation.1总则1.0.1 YD/T 5182是对已发布的有关移动通信网工程基站设计规范和...
YD/T 1642-2009.Test Method of Internet Network and Service Quality.1范围YD/T 1642规定了互联网网络和业务服务质量的测试方法，包括互联网网络质量以及WW...
YD/T 1260-2003.Technical and Testing Specification of Virtual LAN Based on Port (VLAN).1范围当前虚拟局城网(VLAN) 有基于物理端口、基于IP地址以及基于MAC地址等...
YD/T 1258.3-2003.The series of indoor optical fibre cables part 3: dual-fibre optical cable.1范围YD/T 1258.3规定了室内用双芯光缆(以下简称光缆)的产品分类和命名...
