The Test Port Cable Checks - Keysight N5221A Service Manual

PNA Series Microwave Network Analyzers
N5221A/22A

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 3-14
• "Cable Insertion Loss Check" on page 3-15
• "Cable Magnitude and Phase Stability Check" on page 3-16
• "Cable Connector Repeatability Check" on page 3-18
Accessories Used in the Test Port Cable Checks
Equipment Type
Calibration kit, 3.5 mm
Test cable, 3.5 mm (f) to 3.5 mm (f)
Service Guide N5222-90001
Tests and Adjustments
Preliminary Checks
Model or Alternate Model
Part Number or Part Number
85052B 85052D
85131C 85131E
3-13