Concepts and Features
R&S
®
ZNB/ZNBT
175
User Manual 1173.9163.02 ─ 38
4.5.8 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 may be quite inefficient in terms of necessary recon-
nections of calibration standards (or calibration units).
The R&S
ZNB/ZNBT 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 and 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 (see
on page 263) and via remote control (see
]CORRection:COLLect:CHANnels:ALL
●
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 and for each of these standards only a subset of the available
channels might have to be swept.
This advanced mode of parallel calibration is available via
remote control only
(see
[SENSe:]CORRection:COLLect:CHANnels:MCTYpes
4.6 Offset Parameters and Embedding
The R&S
ZNB/ZNBT 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.
4.6.1 Offset Parameters
Offset parameters compensate for the known length and loss of a (non-dispersive and
perfectly matched) transmission line between the calibrated reference plane and the
DUT.
The analyzer can also auto-determine length and loss parameters, assuming that the
actual values should minimize the group delay and loss across the sweep range.
Offset Parameters and Embedding
