Rohde & Schwarz 1332.4500.22, User Manual

Page: 167 / 1476

Concepts and Features
R&S
®
ZNA
167 User Manual 1178.6462.02 ─ 12
The receiver power calibration included in the SMARTerCal is not indicated separately.
If a SMARTerCal is combined with an additional scalar source power calibration (see
Chapter 5.5.7.3, "Combining SMARTerCal with Scalar Power Calibration" ,
on page 166), the trace list may contain an addition power calibration label according
to
Chapter 5.5.6.3, "Power Calibration Labels" , on page 162.
5.5.8 Parallel Calibration of Multiple Channels
If multiple channels are configured in the active recall set, clearly they can be calibra-
ted one after the other, but this can be inefficient in terms of necessary reconnections
of calibration standards (or calibration units).
The R&S ZNA offers multiple possibilities to calibrate several channels in parallel:
●
The "Calibrate All" function supports parallel calibration of multiple channels. For
each channel and port set, a different calibration, and even multiple calibrations
can be configured. During the calibration phase, the number of connections of cal
standards/cal devices is minimized.
For some measurement/channel setup dialogs, when the measurement configura-
tion is applied, a default calibration configuration for the involved channels and
ports is created.
"Calibrate All" supports all
Chapter 5.5.1, "Calibration Types" , on page 134 calibra-
tion types –excluding scalar power calibration. Use a suitable SMARTerCal instead.
●
Calibrate multiple channels in one go, using the same calibration type on the same
ports for all channels
In this case, for each port to be calibrated the same calibration standards have to
be connected. After connecting one of these standards, a calibration sweep has to
be performed for each channel.
This simple mode of parallel calibration is supported from the analyzer GUI ("Cali-
brate all Channels" checkbox in all calibration wizards) and via remote control (see
[SENSe:]CORRection:COLLect:CHANnels:ALL
on page 1089).
●
Calibrate a subset of the available channels, possibly using different ports and cali-
bration types, using
remote control .
In this case, for each port to be calibrated a different set of calibration standards
might be required. For each of these standards only a subset of the available chan-
nels might have to be swept. See
[SENSe:]CORRection:COLLect:CHANnels:
MCTYpes
on page 1089.
This advanced mode of parallel calibration is available via remote control only .
5.6 Offset Parameters and De-/Embedding
The R&S ZNA functionality described in this section complements the calibration, com-
pensating for the effect of known transmission lines or matching networks between the
calibrated reference plane and the DUT.
Offset Parameters and De-/Embedding