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• Press Offset to set the vertical offset of the operation results. For setting
methods, refer to the descriptions in "
Parameter Setting Method
". You can also
directly rotate Wave Vertical POSITION or enable the touch screen to adjust
the vertical offset.
• Press Scale to set the vertical scale of the operation results. For setting methods,
refer to the descriptions in "
Parameter Setting Method
". You can also directly
rotate Wave Vertical SCALE or enable the touch screen and use the "Pinch &
Stretch" gesture to adjust the vertical scale. If the source channel unit is set to
"V", then the unit of the vertical scale is displayed as dBV. If you select other
source channel unit, then the unit of the vertical scale is displayed as dB.
• Press AutoSetting to adjust the vertical scale and offset of the operation results
to an optimal value based on the current configuration, so as to better observe.
• Press More > Unit to select the vertical unit. The vertical unit can be set to
dB/dBm or Vrms. The vertical amplitude can be expressed both in log form and
linear form, with dBm/dBV and Vrms as the unit respectively. If you need to
display the FFT spectrum within a larger dynamic range, dBm/dBV is
recommended.
• Press More > X to select "Span-Center" (frequency range to center frequency) or
"Start-End" (start frequency to stop frequency).
- "Span-Center" (frequency range to center frequency): the frequency range
refers to the screen width, and you can divide the frequency range by 10 to
obtain the frequency per division. Press Span to set the frequency range of
the frequency-domain waveform. For setting methods, refer to descriptions
in "
Parameter Setting Method
". Press Center to set the frequency of the
frequency-domain waveform relative to the horizontal center of the screen.
For setting methods, refer to descriptions in "
Parameter Setting Method
".
- "Start-End" (start frequency to stop frequency): start frequency refers to the
frequency at the left side of the screen. Press
Start to set the start
Operations and Measurements
144
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