R&S
®
ZVL
System Overview
Calibration Overview
Quick Start Guide 1303.6538.62-01
97
3.3.3 Automatic Calibration (Introduction)
A Calibration Unit is an integrated solution for automatic system error correction of
vector network analyzers. For R&S ZVL3-75 analyzers (75
T
variant of R&S ZVL3),
Rohde & Schwarz offers the calibration unit R&S ZV-Z53, stock number 1164.0473.75.
This calibration unit supports a frequency range between 300 kHz and 3 GHz. With its
two N 75
T
(f) connectors, it is suited for one-port and two-port calibration.
The unit contains calibration standards that are electronically switched when a
calibration is performed. The calibration kit data for the internal standards are also
stored in the calibration unit, so that the analyzer can calculate the error terms and
apply the calibration without any further input.
Advantages of automatic calibration
E
Automatic calibration is generally faster and more secure than manual calibration,
because:
E
There is no need to connect several standards manually.
E
Invalid calibrations due to operator errors (e.g. wrong standards or improper
connections) are almost excluded.
E
No need to handle calibration kit data.
E
The internal standards don't wear out because they are switched electronically.
Automatic calibration is less flexible than manual calibration, because it is cannot be
performed for segmented sweep.
Connection and use of the calibration unit
Please observe the safety instructions in the "Technical Information" provided with the
calibration unit to avoid any damage to the unit and the network analyzer. Safety-
related aspects of the connection and operation of the units are also reported in
chapter 5 (GUI Reference) of the operating manual or in the network analyzer’s help
system.
