MN469xC Series Multiport Test Set MM
PN: 10410-00730 Rev. D
3-1
Chapter 3 — Performance Verification
3-1
Introduction
This chapter contains procedures that can be used to verify the performance of the VectorStar Multiport Vector
Network Analyzer System which comprises the MS464xA/B VNA and MN469xC Test Set.
There are many levels to the concept of VNA “verification” that ultimately is a comparison against expected
behaviors.
•
On the explicit VNA hardware level are operational checkout items such as port power and noise levels.
•
On the calibrated instrument level (which includes the VNA and the calibration kit or AutoCal
Automatic Calibrator) are the residual specifications (corrected directivity, source match, load match,
and tracking) that are measured using traceable airlines (absolute impedance standards).
•
An intermediate level that can look at overall system behavior (VNA, calibration kit, cables,
environment) in a traceable fashion is through the use of a verification kit. While not intended for
day-to-day use, the verification kit can provide a periodic check on system behavior without going
through the rigor needed for full residual analysis (which can usually be done less often).
While there are many ways of verifying VNA performance, sometimes simpler procedures are desired. The use
of a verification kit, available from Anritsu, is a simpler method of verifying the measurement capabilities of
the instrument by analyzing the measurement of artifacts that are traceable to national standards
laboratories.
Performance Verification Procedures
The procedures include the following tests:
•
“S-Parameters Measurements Verification” on page 3-4
or
“Directivity and Test Port Match Verification”
•
“Test Port Power Verification” on page 3-17
•
“Noise Floor Verification” on page 3-18
Note
As the MN469xC Series Test Set provides multiple test port capabilities for the Anritsu
VectorStar MS464xA or MS464xB Series Vector Network Analyzer, they do not have any
performance specifications separate from the VectorStar VNA. Therefore, MN469xC Test Set
must be verified with a 2-port VectorStar VNA as a system. The frequency range that can be
verified will be limited by the 2-port VectorStar VNA.
Note
The 2-port VectorStar VNA should be verified as a stand-alone unit. Consult the
VectorStar
MS4640A Series VNA Maintenance Manual – 10410-00268
, or the
VectorStar MS4640B Series
VNA Maintenance Manual – 10410-00320
prior to performing these system tests.