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The steps below instruct on the operation of the FFT feature:
1.
Press the MENU key; the function menu will appear on the right side of the
screen.
2.
Press MENU ▲ or MENU ▼ to select FFT MODE. Five options will then be
available at the bottom of the screen.
3.
Press F1 to turn FFT ON/OFF (the green waveform F will be shown
on the screen after the FFT calculation is completed).
4.
Press F2 to switch between channel CH1 and CH2; the currently selected
channel is indicated at the top left of the screen.
5.
Press F3 to switch to WINDOW with the following available options:
HAMMING、RECTANGLE、BLACKMAN, and HANNING.
6.
Press F4 to switch to Format with the options: dB and Vrms.
7.
Press F5 to zoom in/out; the magnification selections are: *1, *2, *5, *10.
8.
If the FFT source is CH1, press the red button VOLTS POSITION ,
One of the following three prompts will appear at the bottom-left of the screen
when the Format selection is set to dB.
— FFT dB level
— CH1 voltage level
— FFT vertical position
*1
Set multiple *1
*2
Set multiple *2
*5
Set multiple *5
*10
Set multiple *10
66
V5.1 ‐ March 2010
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