Keysight N5227A - The Test Port Cable Checks

3-12 Service Guide N5227-90001
Tests and Adjustments PNA Series Microwave Network Analyzers
Preliminary Checks N5227A
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, 1.85 mm 85058B 85058E
Test cable, 1.85 mm (f) to 1.85 mm (f) N4697E N4697-60200