System Verification Procedure; Performance Tests - Agilent Technologies N5242A Service Manual

PNA Series Microwave Network Analyzers
N5241A/42A

System Verification Procedure

The system verification procedure tests the network analyzer measurement "system", as
defined previously, against the system specifications. If confirmation is successful, the
measurement system is capable of making measurements to the accuracy specified by the
graphs of measurement uncertainty.
The procedure consists of calibrating the analyzer with a calibration kit, measuring a set
of characterized devices, and comparing the resultant measured data to the data and
uncertainty limits supplied with the verification kit. The device data provided with the
verification kit has a traceable path to NIST. The total measurement uncertainty limits for
the performance verification are the sum of the factory measurement uncertainties and
the uncertainties associated with measuring the same devices on the system being
verified. The difference between the factory-measured data and the verification-measured
data must fall within the total uncertainty limits at all frequencies for the total system
uncertainty test to pass.
Calibration kits are different from verification kits. Calibration kits are used
NOTE
to determine the systematic errors of a network analyzer measurement
system. Verification kits are used to confirm system specifications and are not
used to generate error correction.

Performance Tests

Performance tests are used to confirm analyzer performance against the "instrument"
specifications. If confirmation is successful, the analyzer meets the instrument
specifications.
Performance tests are contained in the analyzer's firmware with Options 897 or 898 and
are described at "Performance Tests" on page
An illustrated outline of the performance verification procedure:
• for ANSI/NCSL Z540-1-1994 verification, is shown in
• for non-ANSI/NCSL Z540-1-1994 verification, is shown in
Service Guide N5242-90001
About System Verification and Performance Tests
3-29.
Figure 3-1 on page
Figure 3-2 on page
Tests and Adjustments
3-9.
3-10.
3-7