Rohde & Schwarz Changes port 4 to N(m), for calibration unit R&S®ZN-Z51 Var74 (hardware option)
The Rohde & Schwarz hardware option 1319.5713.14 modifies port 4 of the R&S®ZN-Z51 calibration unit to use an N-type male (N(m)) connector. This option is specifically designed for the R&S®ZN-Z51, a calibration unit used with vector network analyzers to ensure precise and reliable measurements. By changing port 4 to an N(m) interface, this hardware option enables compatibility with test setups requiring N-type male connectors, supporting flexible calibration configurations. The modification is implemented as a factory-installed hardware variant (Var74) and is intended to meet specific user requirements for connector types on the calibration unit.