Keysight N9927-90001 User’s Guide 185
SA (Spectrum Analyzer) Mode
SA Mode Settings
How to Access Individual Alignments
This section assumes access to individual alignments was activated using the
FieldFox’s system settings’ Preferences. Once enabled, an Individual
Alignments softkey is displayed. Refer to “Preferences” on page 637, in
Chapter 29 System Settings.
—Press Cal 5
—Then Individual Align
—Then Amptd Align Now
or
—Then Burst Align Now
or
—Then ChanEq Align Now
—Press Enter
How to make Amplitude Alignment settings
SA, IQA, RTSA, and other modes use a proprietary amplitude alignment
algorithm to make extremely accurate amplitude measurements over the full
frequency range of the FieldFox.
These settings do NOT survive a Preset or Mode Preset.
—Press Cal 5
—Then Individual Align
—Then Amptd Alignment
— Then choose from the following:
— Auto
(Default setting) Alignments are required and are performed
automatically, when necessary, at times when interrupting the RF
Output is deemed acceptable. The alignment process is performed
opportunistically when changes in settings require the measurement
to stop momentarily and a significant time elapsed since the last
alignment (predetermined in the factory) or the internal instrument
temperature has changed sensibly (predetermined in the factory).
During continuous sweep ("acquisition" for IQA) operation, automatic
Alignments will NOT interrupt the ongoing measurement, but when
necessary, will occur opportunistically as settings are changed. When no
automatic alignment updates occur, existing alignments can become stale
over time and temperature drift, so a warning annotation on the left panel
will light up indicating that alignments need updating.
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