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Foxwell OS100 Digital Oscilloscope User’s Guide_English Version_V1.00
A x B
Multiply source A by source B
A / B
Divide source A by source B
FFT
Convert a time-domain signal into its frequency components (spectrum).
In this function, use the addition, subtraction, multiplication and FFT function to operate and
analyze the waveform.
Select the operate type in the
Operate
menu. Select source A and B. Then adjust the vertical
scale and offset to view the math channel clearly. The mathematic result can be measured by the
measure and the cursor.
The Math Function Display
Invert
The invert function turns the displayed waveform 180 degrees, with respect to the ground level.
When the oscilloscope is triggered on the inverted signal, the trigger is also inverted.
Click
“Invert”
in MATH.
The following picture shows the waveform before inversion:
