This standard specifies the requirements for quality grading of type L27 radio frequency coaxial connectors. This standard is applicable to the quality classification of L27 type RF coaxial connectors with threaded connection mechanism and characteristic impedance of 50Ω or 75Ω in RF circuits of radio equipment and electronic instruments, with or without RF coaxial cables. This standard only gives key technical indicators and is not a complete standard. It must be used together with GB 11313 and SJ 973.
SJ/T 9562.4-1993 history
1993SJ/T 9562.4-1993 L27-type radio frequency coaxial connector--Quality grading standard