Rohde & Schwarz Source reference signal access for port 1 before the source step attenuator, for R&S®ZNA43 requires R&S®ZNA43-B16/-B21 (Hardware option, Upgrade option)
The Source reference signal access for port 1 before the source step attenuator (1332.6190.51) is a hardware upgrade option for the R&S®ZNA43 vector network analyzer. This option enables access to the reference signal at port 1 prior to the source step attenuator, which is essential for certain advanced measurement configurations and calibration routines. The option is compatible with R&S®ZNA43 units equipped with either the R&S®ZNA43-B16 or R&S®ZNA43-B21 hardware options. Installation of this upgrade allows users to route the reference signal externally, supporting enhanced flexibility in test setups and facilitating specialized measurement tasks that require direct reference signal access.