Rohde & Schwarz ZNB20, User Manual

Page: 310 / 1332

GUI Reference
R&S
®
ZNB/ZNBT
295 User Manual 1173.9163.02 ─ 38
Ports
Selects the test port(s) to be calibrated.
It is possible to select any combination of two or more test ports. If you're only interes-
ted in a single port
p , perform a two-port SMARTerCal for a port pair including p (as
Power Port).
Note: Calibration and port de-/activation.
The way the analyzer fimware activates/deactivates ports after a successfull calibration
(system error correction or power calibration) has slightly changed:
●
In all FW releases, calibrated ports that were previously disabled, are automatically
enabled as single-ended logical ports.
●
Starting with FW version 2.10, uncalibrated ports were disabled in the related
channel(s). If only one of the physical ports forming a balanced port was calibrated,
the balanced port was dissolved and only the uncalibrated (single-ended) port was
disabled.
In earlier FW versions there was no such port deactivation mechanism.
●
Since FW version 2.40 an uncalibrated port is only disabled if it is not used by a
measurement, i.e. if it is not required by any trace of the related channel.
Remote command:
The port parameters in many calibration commands define the calibrated port(s).
Cal Unit
Displays the connected calibration units. The R&S ZNB/ZNBT auto-detects all calibra-
tion units which are connected to one of its USB ports. If several cal units are connec-
ted, one of them must be selected for calibration (active cal unit). A warning is dis-
played if the current sweep range of the network analyzer exceeds the characterized
frequency range of the calibration unit.
For background information see Chapter 4.5.5, "Automatic Calibration" , on page 158.
Remote command:
SYSTem:COMMunicate:RDEVice:AKAL:ADDRess:ALL?
SYSTem:COMMunicate:RDEVice:AKAL:ADDRess
Characterization
Displays all characterizations which are stored in the active cal unit. The "Factory"
characterization is available for all calibration units; it ensures an accurate calibration
for all standard applications. To account for a modified test setup (e.g. the connection
of additional adapters to the calibration unit), you can generate modified sets of char-
acterization data using the cal unit characterization wizard; see
Chapter 5.4.2.3, "Char-
acterize Cal Unit Dialog" , on page 327. By default, the R&S ZNB/ZNBT uses the last
generated cal unit characterization.
Tip: If the characterization wizard is password-protected, the "Characterization" button
is unavailable. Use this functionality to prevent inadvertent activation of inappropriate
characterizations. See
"Authentication" on page 328.
See also Chapter 4.5.5.3, "Characterization of Calibration Units" , on page 163.
Remote command:
[SENSe<Ch>:]CORRection:COLLect:AUTO:CONFigure
SYSTem:COMMunicate:RDEVice:AKAL:CKIT:CATalog?
SYSTem:COMMunicate:RDEVice:AKAL:CKIT:STANdard:CATalog?
Cal Softtool