DIN EN 61169-50-2015 射频连接器. 第50部分: 带有快速锁定系统且内径为4.11 mm的外导体的射频同轴连接器的分规格. 特征阻抗50欧姆 (QMA型) (IEC 61169-50-2014); 德文版本EN 61169-50-2015
Radio-frequency connectors - Part 50: Sectional specification for RF coaxial connectors with inner diameter of outer conductors 4,11 mm with quick lock system - Characteristic impedance 50 Ohm (type QMA) (IEC 61169-50:2014); German version EN 61169-50:201