GY/T 155-2000.Video parameter values for the H DTV standard for production and programme exchange. 1范围 GY/T 155规定了高清晰度电视节目制作和交换中所涉及的基本视频参数值。 GY/T 155适

GY/T 151-2000.Methods of measurement for satellite digital television receive- only earth station- outdoor unit measurement. 4.6.3测量方法 室外单元的噪声温度，应在通带内

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

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掉处理器、预放、调制器供电的方法。 调频谱分析仪使被测的噪声位于显示屏的中央,即移动载

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/T 147适用于C频

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适用于卫星数字电视接收机的入网检测。 2引用标准 下

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有同步的任

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波相位失真

GY/T 143-2000.Specifications and methods of measurement on AM optical transmitter and receiver used in CATV systems. 1范围 GY/T 143规定了有线电视系统正向(主)通道残留边带调

GY/T 144-2000.Specification for management protocol interface of broadcast and TV SDH backbone network. 3.8 被管对象managed object ( MO )从管理角度的电信资源，它可由代理管