R&S ZVL Measurement Examples
Optimization
Operating Manual 1303.6580.32-05
109
Calibrating a Measurement Channel
Calibration is the process of eliminating systematic, reproducible errors from the measurement results
(system error correction). A measurement channel can be calibrated either manually or automatically
using a calibration unit (accessory R&S ZV-Z5x).
Select and perform a manual calibration
In the following example a 2-port TOSM calibration is performed using the Calibration Wizard. Other
calibrations can be performed in an analogous way.
Perform all channel settings for your measurement.
Click Channel – Cal – Start Cal – Two-Port P1 P2 – TOSM to open the calibration wizard for the
desired calibration type.
In the first dialog of the calibration wizard, select the connector type that you use at port 1 and 2 (both
connector types must be equal) and the calibration kit. Click Next > to access the next dialog of the
wizard.
Connect an open standard to port 1 and click the corresponding box in the Measured Standards list to
initiate the calibration sweep and acquire the calibration data for this standard.
Repeat the last step for a short and a match connected to port 1, an open, short and match connected
to port 2, and for a through between both ports.
Click Apply to start the calculation of the system error correction data, apply them to the current
channel and close the calibration wizard.
Replace the last measured standard with your DUT and perform calibrated measurements without
changing the channel settings used for calibration.
You can also access manual calibration from the S-Parameter Wizard.
Perform an automatic calibration
In the following example a 2-port TOSM calibration is performed using the calibration unit (accessory R&S
ZV-Z53). The calibration of a single port is analogous; see Performing an Automatic Calibration.
Connect the calibration unit:
Switch on and start-up your network analyzer and establish a USB connection to the calibration unit;
see Connecting the calibration unit.
Connect port 1 of the unit to port 1 of the analyzer; repeat this for port 2.
Perform the calibration:
Click Channel – Cal – Start Cal – Two-Port P1 P2 – Calibration Unit and wait until the calibration is
completed.
Remove the connecting cables from the unit, connect your DUT instead and perform calibrated
measurements.
You can also access automatic calibration from the S-Parameter Wizard.
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