Keysight Technologies N4373D, User Manual

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Performance Quick Check
48
Keysight
N4373D Lightwave Component Analyzer, User’s Guide
• A notch at around
35 to 40 GHz
would indicate a
bad RF
connection.
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If the results differ from the expected values
• Inspect the electrical connectors on the N4373D
Lightwave Component Analyzer and the “Flexible Cables
for Test Ports” visually.
If electrical connectors seems to be damaged contact
Keysight
for repair or replacement.
• Clean the electrical connectors on the N4373D Lightwave
Component Analyzer 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 1.85 mm (N4697-60200) / 2.4mm (85133-60017)
Flexible Cables for Test Ports are tight.
Perform a new electrical calibration and retest.
If the problem persists, contact
Keysight
for support.
If you have option 102 (Dual wavelength 1310nm, 1550nm), and
you are testing at both wavelengths, repeat the performance
quick check for the second (1310nm or 1550nm).