User manual

FFT Analyzer
4-86
AM700 Audio Measurement Set User Manual
Spectrogram. This is a display of time versus frequency versus amplitude.
Amplitude is color coded in the AM700 display and in the VGA output to an
external monitor.
A comparison of the Bar Graph and Spectrogram display is shown
in Figure 4-39.
Expanded bar
graph display of
a single tone
Spectrogram display
of a stepped sweep
signal
Figure 4-39: FFT Bar graph and Spectrogram displays