Spectrum Analyzer Mode Key Descriptions
Spectrum Analyzer Mode Functions
SINGLE FFT
SINGLE ME AS
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.
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.