Rohde & Schwarz 1323.0012.03, User Manual

Page: 259 / 1014

VNA Concepts and Features
R&S
®
ZNL/ZNLE
259 User Manual 1178.5966.02 ─ 07
Dependency between calibration types and characterization data
A cal unit characterization provides full one-port (OSM) data at the selected ports plus
two-port (Through) data between any pair of selected ports. The measurement of
Through data is optional, however, it is required for some calibration types. The follow-
ing table gives an overview.
Calibration type Characterization data required
Refl Norm Open
Refl Norm Short
Refl OSM
UOSM
TOSM
OSM CalPort 1, OSM CalPort2 ... (all calibrated
ports)
Trans Norm Both
Trans Norm Forward
One Path Two Ports
OSM CalPort 1, OSM CalPort2 ... (all calibrated
ports), Through (between all pairs of ports)
8.5.6 Parallel Calibration of Multiple Channels
If multiple channels are configured in the active channel setup, clearly they can be cali-
brated one after the other, but this can be inefficient in terms of necessary reconnec-
tions of calibration standards (or calibration units).
The R&S ZNL/ZNLE offers two possibilities to calibrate several channels in parallel:
●
Calibrate all 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 825).
●
Calibrate a subset of the available channels, possibly using different ports and cali-
bration types
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.
This advanced mode of parallel calibration is available via
remote control only
(see
[SENSe:]CORRection:COLLect:CHANnels:MCTYpes
on page 825).
8.6 Offset Parameters and Embedding
The R&S ZNL/ZNLE functionality described in this section complements the calibra-
tion, compensating for the effect of known transmission lines or matching networks
between the calibrated reference plane and the DUT.
Offset Parameters and Embedding
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