Figure 9.8 FFT Operation Window
Source
Click or tap the
Source drop-down button to select CH1, CH2, CH3, or CH4 as the
source. When a source channel is selected, the selected channel automatically
switches to the ON state.
Auto Set
Click or tap
AutoSetting to adjust the vertical scale and the offset of the operation
results to the optimal value according to the current configuration for you to better
observe.
Frequency Range
In the
X item, select "Span-Center" (frequency span to center frequency) or "Start-
End" (start frequency to stop frequency) to define the frequency range.
• Span-Center (frequency span to center frequency): Span specifies the
frequency range represented by the width of the display. Divide the frequency
span by 10 to obtain the frequency per division.
Click or tap the
Center input field to set the frequency of the frequency-domain
waveform relative to the horizontal center of the screen. You can also use the
corresponding multipurpose knob to set the value. Its range is from 5 Hz to 1
GHz. Click or tap the
Span input field to set the frequency span with the pop-up
numeric keypad. You can also use the corresponding multipurpose knob to set
the value. Its range is from 10 Hz to 1 GHz.
Math Operation
Copyright ©RIGOL TECHNOLOGIES CO., LTD. All rights reserved.
HDO1000 User Guide
123