Acute TravelScope Series Manual page 39

Keep the old waveform on the window while display the new waveform to see
the maximum difference between waveforms.

Math(3/3):
 Math
"A+B", "A-B", "B-A", "AxB" or "A/B" is the
mathematical result of the values of CH1 and CH2.
"X-Y" is the Lissajous figure.
 FFT
The selected channel can be fransformed as FFT.
 FFT Scale
The FFT Scale has three modes: Linear RMS, dbV RMS,
dBm Rms.
 FFT Window
The FFT window includes "Triangular", "Cosine",
"Lanczos", "Gaussian", "Rectangular", "Blackman",
"Hann", "Hamming" and "Harris".
Acute Technology Inc.
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Copyright 2012