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Spectrum Analyzer Mode Key Descriptions
Spectrum Analyzer Mode Functions
SINGLE
FFT
initializes the fast Fourier transform (FFT) function. If the
analyzer is in single sweep mode, an FFT is performed on
trace A without taking a new sweep. If the analyzer is in
continuous sweep, it is put in single sweep, a sweep is
taken, and the FFT is performed. If the analyzer is already
in the FFT mode it is put in single sweep, a sweep is taken,
and an FFT is performed. Pressing SINGLE FFT again or
pressing
CsGLSWP)
will take another sweep and perform an
FFT.
After using the FFT function, the display is in log mode.
The markers are put in the FFT mode for use in evaluating
the data. The signal being transformed is in trace A and
the Fourier transform of the signal is in trace B. (Any
information that was in trace B and C will be lost.) Press
FFT OFF to return the analyzer to normal operation.
Refer to Chapter 5, “Measuring Amplitude Modulation Using
the Fast Fourier Transform Function,” for more information.
Front-Panel Key Access
IjMEAS/USER)
SINGLE
ME AS
sets the functions in the Power Menu so that they make
the measurement on a single sweep. After a power
measurement is activated, pressing SINGLE
MEAS
or
CsGLSWP)
initiates a sweep and recalculates the
measurement results.
Front-Panel Key Access
Iv)
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