GY/T 232一2008.Technical requirements and measurement methods of direct broadcasting satellite system...
GY广播电视行业标准
GY广播电视行业标准
GY广播电视行业标准
GY/T 232-2008 卫星直播系统一体化下变频器技术要求和测量方法
GY/T 232-2008.Technical requirements and measurement methods of direct broadcasting satellite system...