41
6. Turn the “Time/div” knob to adjust the sampling
rate (at least double the frequency of input signal).
7. If FFT is displayed on full screen, press CH1 button
again to remove channel waveform display.
8. Press the “CURSOR” button to enter “Cursor” menu.
9. Press the “Cursor Mode” button to select “Manual”.
10. Press the “Type” option button to select “Voltage”.
11. Press the “Source” option button to select “MATH”.
12. Press the “CurA” option button; turn the “Universal”
knob to move Cursor A to the highest point of the
FFT waveform.
13. Press the “CurB” option button, turn the “Universal”
knob to move Cursor B to the lowest point of the
FFT waveform.
14. The amplitude (△T) displays on the top of the left
screen.
Figure 3.15 – Measuring FFT Amplitude
• Measure FFT Frequency
1. Press the CURSOR button.
2. Press the “Cursor Mode” button to select “Manual”.
3. Press the “Type” option button to select “Time”.
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