Keysight N4372E, Руководство пользователя

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Keysight N4372E Lightwave Component Analyzer User’s Guide 59
Making Measurements 4
• For accurate measurements, you can also perform a user
calibration. To do so, remove the DUT and close the optical path
again. Then set "User Calibration" to "Measure" to perform a
measurement of the optical path. Alternatively, select "Load" to
recall an existing calibration.
8 If you need to deembed electrical components, such as RF cables,
waveguide or other adapters, or probe heads, located between the
device under test and the input port, open and enable the "RF Path
Deembedding".
Enter or select the file name.
9 Select the appropriate type of user calibration for your measurement:
• In many cases, a User Calibration is not needed, so select "None".
The LCA measures to specifications under the standard conditions.
• The frequency dependent transmission behavior of optical
transmitters cannot be characterized as accurately as the behavior
of receivers. So for improved results at lower frequencies, select
“Measure”.
• If you want to reuse an existing user calibration, select “Load”, and
select the calibration file from the Windows Explorer window.