SJ/T 9508.6-1993
30MHz~1GHz声音和电视信号的电缆分配系统宽频带放大器质量分等标准
Grading standard of quelity for broadband amplifier used in cabled distribution systems primarily intended for sound and television signals operating between 30MHz and 1GHz
SJT9508.6-1993, SJ9508.6-1993