Home / Standards / GB/T 9413-1988 GB/T 9413-1988 Abolished Methods of measurement of modems for wide band using 60~108 kHz group band circuits 用于60~108 kHz基群电路的宽带调制解调器的测量方法 Standard Type GBT ICS 33.160 CCS M32 Status 废止 Issue Date 1988-06-23 Implementation 1988-12-01 Responsible Dept 工业和信息化部(电子) Drafting Unit N/A