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Automatic Calibration
A calibration unit is an integrated solution for automatic calibration of several network
analyzer ports.
The unit contains calibration standards that are electronically switched when a calibra-
tion is performed. The calibration kit data for the internal standards is stored in the
calibration unit, so that the analyzer can calculate the error terms and apply the cali-
bration without any further input.
Automatic calibration is generally faster and more secure than manual calibration:
•
There is no need to connect several standards manually. The number of standards
to be connected 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.
Scope of this document
This Technical Information gives a brief introduction to the unit’s connection and
use. For detailed information refer to the help system of your network analyzer.
The calibration units R&S ZV-Z51 … R&S ZV-Z55 cover different frequency
ranges; they also differ in the number of calibration ports and the connector types.
For an overview refer to the data sheet.
USB Connection to the Network Analyzer
The calibration unit provides the following connectors:
•
A USB type B connector at the rear, used to power-supply and control the unit. A
USB cable for connection to the network analyzer is provided with the calibration
unit.
•
Two or four RF connectors numbered 1 to 4, to be connected to the test ports 1 to
4 of the analyzer. The connector type is equal for all ports. Depending on the cali-
bration unit model, it is either type N (f), 3.5 mm (f), 2.92 mm (f) or 2.4 mm (f).
