R&S ZNB Series User Manual page 182

®
R&S ZNB/ZNBT
Advantages of automatic calibration
Automatic calibration is faster and more secure than manual calibration, because:
●
There is no need to connect several standards manually. The number of connec-
tions to be performed quickly increases with the number of ports.
●
Invalid calibrations due to operator errors (e.g. wrong standards or improper con-
nections) are almost excluded.
●
No need to handle calibration kit data.
●
The internal standards do not wear out because they are switched electronically.
Limitations of automatic calibration
Calibration units do not contain characterized Through standards, so calibration types
TOM, TSM, TRM, TRL, TNA are not available.
4.5.5.1 Connecting the calibration unit
The calibration units provide the following connectors:
●
USB type B connector at the rear, which is used to power-supply and control the
unit. A USB cable for connection to the network analyzer is provided with the cali-
bration unit.
User Manual 1173.9163.02 ─ 62
Concepts and features
Calibration
182