Home / Standards / GB/T 5438-1985 GB/T 5438-1985 Active Characteristics and measuring methods for monophonic and stereophonic transmissions 单声和立体声节目传输特性和测量方法 Standard Type GBT ICS 33.040.20 CCS M61 Status 现行 Issue Date 1985-09-29 Implementation 1986-06-01 Responsible Dept 广电总局 Drafting Unit 广电总局