DIN IEC 60107-4:2000 电视广播接收机推荐测量方法.第4部分:双载波调频装置多声道电视接收机电气测量
Recommended methods of measurement on receivers for television broadcast transmissions - Part 4: Electrical measurements on multichannel sound television receivers using the two-carrier FM-system (IEC 60107-4:1988 + A1:1999)