标准号：IEC 60169-21:1985
发布日期：1985-01-01
Radio-frequency connectors. Part 21: Two types of radio-frequency connectors with inner diameter of outer conductor 9.5 mm (0.374 in) with different versions of screw coupling - Characteristic impedance 50 ohms (Types SC-A and SC-B)
IEC 60169-21:1985