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Tests and Adjustments
About System Verification and Performance Tests
About System Verification and Performance Tests
The performance of the network analyzer is specified in two ways: system
specifications, and instrument specifications. It is the end user's responsibility
to determine which set of specifications is applicable to their use of the PNA.
A network analyzer measurement "system" includes the analyzer, calibration
kit, test cables, and any necessary adapters. The system verification software in
the PNA is used to verify the system's conformance to the "system"
specifications. A "pass" result demonstrates that the analyzer, test cables, and
adapters, perform correctly as a system. It DOES NOT demonstrate that any
one component performs according to its individual specifications. A change
to any part of this measurement system requires a re-verification of the system.
Instrument specifications specify the network analyzer's uncorrected
measurement port characteristics and its output and input behavior. The PNA
performance tests are used to verify the analyzer's conformance to
"instrument" specifications.
System Specifications
System specifications specify warranted performance of the measurement
system when making error-corrected measurements using the same
calibration kit and test cables used during the system verification routine.
System specifications are applicable only when the measurement system is
used to make error-corrected measurements.
The analyzer's system specifications are described in the "N5247B Data Sheet
and Technical Specifications" in the section titled "Corrected System
Performance", available online at:
http://literature.cdn.keysight.com/litweb/pdf/N5247-90002.pdf.
System specifications are expressed in two ways:
— residual errors of the measurement system shown as tabular specification
— graphs of measurement uncertainty versus reflection and transmission
System specifications are verified in one of the following ways:
— Complete the system verification procedure using a certified verification kit
— Complete all of the performance tests using a certified calibration kit that
Keysight N5247B Service Guide
values
coefficients
and certified calibration kit that will be used for future measurements, or
will be used for future measurements. This alternative verifies both the
system specifications and the instrument specifications for the analyzer.
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