GY/T 33-1984.3.2 屏蔽除非干扰电平低于测量电平20dB,测量工作应在屏蔽的室内进行。屏蔽室对外界各项干扰电平的衰减，均应大于60 dB.3.3电源要...
GY 32-1984.GY 32规定了双边带调幅广'播发射机的运行技术指标等级。1一般规定1.1频率范围中波: 526.5~1606.5kHz, 短波: 2.3~26. 1MHz1.2音频参考频率1...
GA/T 1735.1-2020.Technical specifications of inspection tools for cybersecurity classified protection-Part 1: General safety inspection tools.1范围GA/T 1735.1规定了公安机关开...
GA/T 1734-2020.Integrated traffic command platform of public security-General technical specifications for automatic recording system of occupying emergency lane behaviors on freewa...
GA 107-1995.1主题内容 与适用范围GA 107规定了推车式二氧化碳灭火器的产品分类、技术要求、试验方法、检验规则、标志、包装、运输、贮存。...
YD 5026-1996.Installation and design standard for cabling duct in the transmission room of long haul telecommunication.1总则1.0.1《长途通信传输机房铁架、槽道安装设计...
GA/T 696-2007.Information security technology-Security functional requirements for products of protecting stand-alone computer from intrusion.1范围GA/T 696规定了信息安全技术...
GA/T 669.4-2008.Technical standard of city area monitoring and alarming network system-Part 4:Technical specification for Video/Audio coding/decoding.1范围GA/T 669.4规定了城市监...
GA/T 669.3-2008.Technical standard of city area monitoring and alarming network system-Part 3:Technical specifications of front information collecting.1范围GA/T 669.3规定了城市...
GY/T 169-2001.Technical speci fications and methods of measurement for FM broadcasting transmitters at VHF.1范围GY/T 169规定了符合GB/T 4311- -2000《米波调频广播技术规...
