3-12 Service Guide N5230-90014
Tests and Adjustments PNA Series Microwave Network Analyzers
Preliminary Checks N5230A
The Test Port Cable Checks
A faulty test port cable can cause a failure in the verification test. The following checks are
not required, but are recommended to verify the performance of the test port cable.
• “Cable Return Loss Check” on page 3-13
• “Cable Insertion Loss Check” on page 3-14
• “Cable Magnitude and Phase Stability Check” on page 3-15
• “Cable Connector Repeatability Check” on page 3-17
Accessories Used in the Test Port Cable Checks
Equipment Type
Model or
Part Number
Alternate Model
or Part Number
Calibration kit, 3.5 mm 85052B 85052D
Test cable, 3.5 mm (f) to 3.5 mm (f) 85131C 85131E
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