90 Keysight N9938-90003 User’s Guide
Calibration for NA, CAT, and VVM Modes
The following appears:
Choose Calibration Method screen
— Response Cal – Used to quickly calibrate ONE type of measurement using
mechanical standards. Measurement accuracy is generally low. Learn more
in “Simple Response Cals ” on page 96.
— Mechanical Cal/ECal – Using mechanical cal standards from a cal kit,
perform an accurate calibration at one or both test ports, adapters, or
jumper cables. Full 2-port mechanical calibration is the most accurate
calibration available with FieldFox. Learn more in “ECal” on page 93.
— User Cal OFF ON – Turns ON and OFF the effects of the user calibration that
you performed. The OFF state reverts to CalReady.
— View Cal – Shows the properties of the current calibration. Learn more in
“View Cal” on page 97.
— More – Learn about Cal Ready Properties in “CalReady” on page 89.
Source Unleveled errors - During calibration, the frequency range of the
measurement MAY be extended to provide maximum flexibility. During the
calibration, the output power may become unleveled at the added high
frequencies. You can ignore the “Source Unleveled” error, or to avoid the
error, select either High power or -15 dBm before calibrating. Learn more
about setting Output Power in
“Output Power” on page 45
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