Concepts and features
R&S
®
ZNA
179
User Manual 1178.6462.02 ─ 20
Table 4-10: 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 cali-
brated 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
4.5.5
Automatic calibration
A calibration unit is an integrated solution for automatic system error correction of vec-
tor network analyzers. Rohde & Schwarz offers a wide range of calibration units for dif-
ferent frequency ranges and connector types. The connector types of the calibration
unit should be selected according to the connector types of the DUT.
The calibration units contain calibration standards that are electronically switched when
a calibration is performed. The calibration kit data for the internal standards is also
stored in the calibration unit, so that the analyzer can calculate the error terms and
apply the calibration without any further input.
Calibration