R&S FSW Series - Page 360

Common Measurement Settings
R&S
®
FSW
360User Manual 1173.9411.02 ─ 43
A fixed impedance of 50 Ω is used for all probes to convert voltage values to power
levels.
Additional information
An application note discussing differential measurements with spectrum analyzers is
available from the Rohde & Schwarz website:
1EF84: Differential measurements with Spectrum Analyzers and Probes
Common Mode Offset (for Differential Probes)
Common mode offset compensation is available for R&S
®
RT-ZD10/20/30 probes with
serial number ≥ 200 000. It can compensate a common DC voltage applied to both
input sockets (referenced to the ground socket). This is particularly helpful for mea-
surements on differential signals with high common mode levels, for example, current
measurements using a shunt resistor.
Figure 8-1: Common mode (CM) offset compensation for a differential measurement
If the input signals fit into the operating voltage window of the R&S
®
RT-ZD10/20/30, it
is not necessary to set a common mode offset compensation.
Data Input and Output