Agilent Technologies DSO-X 4022A, Руководство пользователя

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84 Agilent InfiniiVision 4000 X-Series Oscilloscopes User's Guide
3
Vertical Controls
When bandwidth limit is on, the maximum bandwidth for the channel is
approximately 20 MHz. For waveforms with frequencies below this, turning
bandwidth limit on removes unwanted high frequency noise from the
waveform. The bandwidth limit also limits the trigger signal path of any
channel that has
BW Limit turned on.
To change the vertical scale knob's coarse/fine adjustment setting
1 Push the channel's vertical scale knob (or press the channel key and
then the
Fine
softkey in the Channel Menu) to toggle between fine and
coarse adjustment of the vertical scale.
You can also do this using the touchscreen. See "Turn Channels On/Off
and Open Scale/Offset Dialogs" on page 54.
When
Fine
adjustment is selected, you can change the channel's vertical
sensitivity in smaller increments. The channel sensitivity remains fully
calibrated when
Fine
is on.
The vertical scale value is displayed in the status line at the top of the
display.
When Fine is turned off, turning the volts/division knob changes the
channel sensitivity in a 1- 2- 5 step sequence.
To invert a waveform
1
Press the desired channel key.
2
In the Channel Menu, press the
Invert
softkey to invert the selected
channel.
When Invert is selected, the voltage values of the displayed waveform are
inverted.
Invert affects how a channel is displayed. However, when using basic
triggers, the oscilloscope attempts to maintain the same trigger point by
changing trigger settings.
Inverting a channel also changes the result of any math function selected
in the Waveform Math Menu or any measurement.