Keysight Technologies N4373D User Manual page 43

Keysight N4373D Lightwave Component Analyzer, User's Guide
• Clean the electrical connectors on the "Electronic Calibration
Modules" and the "Flexible Cables for Test Ports.
Refer to "User's and Service Guide Keysight Technologies
N4697E/F 1.85 mm (or 85133E/F 2.4mm) Flexible Cables for
Test Ports", for inspection and cleaning. Make sure the
connection to the network analyzer of the two N4697-60200
"1.85 mm (or 85133E/F 2.4mm) Flexible Cables for Test
Ports" supplied is tight.
Perform a new electrical calibration and retest.
If the problem persists contact Keysight for support.
Performance Quick Check
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