YD/T 1862-2009.2GHz WCDMA Digital Cellular Mobile Telecommunication Network Test Method of BBU Equipment. 1范围 YD/T 1862规定了2GHz WCDMA 数字蜂窝移动通信网中分布式基站的基

YD/T 1868-2009.Technical Specification for 800MHz/2GHz cdma2000 Digital Cellular Mobile Telecommunication Network - Packet Data Prepaid. 1范围 YD/T 1868

YD/T 1868-2009.Technical Specification for 800MHz/2GHz cdma2000 Digital Cellular Mobile Telecommunication Network - Packet Data Prepaid. 1范围 YD/T 1868

YD/T 1868-2009.Technical Specification for 800MHz/2GHz cdma2000 Digital Cellular Mobile Telecommunication Network - Packet Data Prepaid. 1范围 YD/T 1868

YD/T 1868-2009.Technical Specification for 800MHz/2GHz cdma2000 Digital Cellular Mobile Telecommunication Network - Packet Data Prepaid. 1范围 YD/T 1868

YD/T 1110-2001.900/1800MHz TDMA Digital Cellular Mobile Telecommunication Network Specification for General Packet Radio Service Base Station Sub-syst

YD/T 1080-2000.Vocabulary of Terms for 900/1800MHz TDMA Digital Cellular Mobile Telecommunication. 1范围 YD/T 1080规定了900/1800MHz TDMA数字蜂窝移动通信中业务、网络与设备、接

YD/T 1057-2000.900/1800MHz TDMA digital cellular mobile telecommunication network test method for base station subsystem. 1范围 YD/T 1057规定了9001800 MHz

YD/T 679-1994. 1主题内容与适用范围 YD/T 679规定了程控机电制用户线路集中器(以下简称集中器)的质量等级及其要求。是考核集中器产品质量等级的依据。 YD/T 679不适用产品分选。 2引用标准 GB 2423.1电工电子产品基本环境试验规程试验A:低温试验方法 GB 2423.

YD/T 1956-2009.Technical Requirements for Air Interface of 800MHz SCDMA Wideband Radio Access Network System. 1范围 YD/T 1956规定了800MHz SCDMA宽带无线接入系统的空中接