Concepts and Features
R&S
®
ZNC
81
User Manual 1173.9557.02 ─ 13
The decimal separator used by the "PNA Cal Kit Editor" depends on the language version
of the Windows
®
operating system: Cal kit files generated on an English operating system
contain dots, the ones generated on a German system contain commas.
The network analyzer expects the dot as a separator and displays an error message
when a
*.prn
file with commas is loaded. Please install the "PNA Cal Kit Editor" on an
appropriate (e.g. English) Windows
®
version to avoid trouble.
3.5.3 Calibration Pool
The calibration pool is a collection of correction data sets (cal groups) that the analyzer
stores in a common directory
C:\Users\Public\Documents\Rohde-Schwarz\Vna\Calibration\Data
. Cal
groups in the pool can be applied to different channels and recall sets. Each cal group is
stored in a separate file named
<CalGroup_name>.cal
. The cal group name can be
changed in the "Calibration Manager" dialog.
Since V1.70 one of the available cal groups can be set as "Preset User Cal", i.e. the user
correction data that shall be restored after a user-defined preset.
If a new channel is created, the channel calibration of the active channel is also applied
to the new channel. See also
3.5.4 Calibration Labels
The following labels in the trace list inform you about the status or type of the current
system error correction.
Table 3-6: Calibration labels (system error correction)
Label
Meaning
Cal
The system error correction is applied without interpolation. This means that a set of
measured correction data is available at each sweep point.
Cal int
The system error correction is applied, however, the correction data for at least one
sweep point is interpolated from the measured values. This means that the channel
settings have been changed so that a current sweep point is different from the calibrated
sweep points. It is not possible to disable interpolation.
Cal Off
The system error correction is no longer applied (e.g. "User Cal Active" is disabled). See
also
3.5.5 Automatic Calibration
A calibration unit is an integrated solution for automatic system error correction of vector
network analyzers. Rohde & Schwarz offers a wide range of calibration units for different
frequency ranges and connector types.
Calibration