Performance Quick Check
Verifying your Electrical Calibration
40
Passing this test ensures that the electrical calibration is within
expected performance.
1. Follow the steps in the sections "Preparation " on page 38
and "Network analyzer settings and electrical calibration" on
page 38.
2. Connect the N5520B "1.85 mm Coaxial Adapters" (or 85056-
60006 "2.4mm Coaxial Adapter") supplied between the two
N4697-60200 "1.85 mm Flexible Cables for Test Ports" (or
85133-60016 "2.4mm mm Flexible Cables for Test Ports")
supplied.
3. Press the [Macro/Local utility button until you see
4. Click
to start the LCA measurement setup.
5. Select the EE Measurement tab.
6. Click
.
7. Make a corrected measurement with the network analyzer.
8. Inspect the results.
• Electrical return loss S11 should be similar to S22.
• Both curves should be below -20dB over the full
measurement range, with only low frequency dependence
on applied modulation frequency.
• Transmission loss S12 should be similar to S21.
• Both curves should be within +0.1dB to -0.6dB over the
full measurement range, with only low frequency
dependence on applied modulation frequency.
If the results differ from the expected values
• Visually inspect the electrical connectors on the "Electronic
Calibration Modules" and the .
If an electrical connector seems to be damaged, contact
Keysight for repair or replacement.
Keysight N4373D Lightwave Component Analyzer, User's Guide
.