Concepts and features
R&S
®
ZNB/ZNBT
189
User Manual 1173.9163.02 ─ 62
f) Step 1: OSM
g) Step 2: Unknown Through
5. Connect the DUT to the calibrated setup and perform the required measurements.
6. Refresh the calibration in situ, whenever required.
a) "Repeat" the calibration
b) Perform OSM measurements.
c) Skip Through measurements.
4.5.5.5
Calibration validation
This feature allows you to validate the active channel calibration against the expected
result from a stored characterization. It requires an R&S calibration unit.
Cal validation works with at most 4 calibrated ports and with 2- and 4-port calibration
units.
Calibration validation provides an automated, single-click (basic) mode, and an
advanced mode for detailed validation and adjustment of limit tolerances, reporting,
and SCPI automation.
Basic mode
When "Cal Validation" is launched for the first time, it runs in basic mode. In this mode,
the R&S
ZNB/ZNBT automatically detects the instrument ports connected to the cal
unit, and only validates connected ports. Thus, if a 2-port cal unit is connected to a 4-
Calibration