38 Keysight FieldFox Handheld Analyzers Service Guide
Tests and Adjustments
Adjustments (Keysight N7841A Software Package)
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Adjustments (Keysight N7841A Software Package)
The adjustments section of the Keysight N7841A software package may be
used to fine-tune your analyzer.
The N7841A software package is not included with the analyzer; it must be
ordered separately. It can be downloaded from the Internet and a license
purchased on-line, or it can be ordered on a CD-ROM. Go to
www.keysight.com/find/calibrationsoftware for further information.
There are nine adjustments that are used to adjust the general functions of the
analyzer and the SA (spectrum analyzer) specific functions.
Total adjustment time may be up to 5 hours depending upon models and
options installed.
If multiple adjustments are to be performed, perform them in the order listed
by the N7841A software.
Details for these adjustments, and recommended troubleshooting information,
can be found in the N7841A help file.
Adjustments
— Max Power and IF Overload Adjustment
—Source Power Adjustment
— Error Terms Adjustment— See “Performance Tests (Keysight N7841A
Software Package)” on page 36. This adjustment should be performed
every 12 months. It refreshes the definition of the preset calibration.
— Frequency Accuracy Adjustment
— LO Feedthru Adjustment
— Absolute Amplitude Adjustment
— Frequency Response Adjustment
— Attenuator Slope Adjustment
— IF Frequency Response Adjustment
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