Home / Standards / GB/T 8617.2-1988 GB/T 8617.2-1988 Abolished Technical parameters and measuring methods for FM broadcasting coder--Supplementary channel 调频广播编码器技术参数和测量方法 附加声道 Standard Type GBT ICS N/A CCS M63 Status Abolished Issue Date 1988-01-21 Implementation 1988-08-01 Centralized Committee 广电总局 Issuing Authority 广电总局