Settings - Keysight A Series User Manual

IQ Analyzer (IQA) – Option 351 (CPU2 Only)
I/Q Analyzer (IQA) Mode Settings
FFT Window
K-B (120 dB)
Gaussian (60 dB)
Gaussian (70 dB)
Gaussian (80 dB)
Sinc
Tukey25
Changing between the Continuous and Single captures and adjusting
the Trigger settings
— Press Sweep 3.
— Then choose from the following:
Keysight N9927-90020 User's Guide
— IF BW Sets the Digital IF bandwidth of the instrument. The
relationship between the IF bandwidth and sample rate can be
described by the following equation:
sample rate = 1.25 * IF BW.
(Default: 10 MHz, minimum: 10 Hz, maximum: 10 MHz)
— Single When pressed, Single automatically sets Continuous to OFF
and causes the application to make one acquisition.
— Continuous Toggles Continuous between ON and OFF. When
Continuous is ON, each Run/Hold press causes the application to
toggle between continuous acquisitions and Hold. When Continuous
is OFF, each Run/Hold or Single press causes the application to
make one acquisition.
— Restart When pressed, Restart causes the FieldFox to restart trace
averaging at count of 1. When in Single sweep mode, the IQA will
perform a complete set of averages before returning to the hold
state.
— Start Time (Waveform only) Sets the start time of the waveform
measurement (default: 0s, minimum: 0s, maximum: dynamic). In
Waveform mode Setting the Start and stop time enables you to
display a subset of the data on the display in order to speed up the
Description
This is a Kaiser-Bessel window whose maximum side-lobe
level is -120 dB.
This is a Gaussian window whose maximum side-lobe level is
-60 dB.
This is a Gaussian window whose maximum side-lobe level is
-70 dB.
This is a Gaussian window whose maximum side-lobe level is
-80 dB.
This window is the central lobe of the sin(x)/x (often called
sinc(x)) function.
This is a tukey (cosine-tapered) window with alpha equal to
0.25.
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