4.Advanced User Guidebook
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all channels (include those obtained from the mathematical manipulation), the
analytic resolution of which changes with the time base.
2.
Horizontal Scale
knob: it is used to set the horizontal scale factor for setting the
main time base or the window.
3.
Horizontal HOR
button: push it to switch between the normal mode and the
wave zoom mode. For more detailed operations, see the introductions below.
Zoom the Waveform
Push the
Horizontal
HOR
button to enter wave zoom mode. The top half of the
display shows the Main window and the bottom half displays the Zoom window. The
Zoom window is a magnified portion of the Main window.
Main Window
Time base of
Zoom window
Selected portion
Horizontal position of
Zoom window
Zoom Window
In normal mode, the
Horizontal Position
and
Horizontal Scale
knobs are used to
adjust the horizontal position and time base of the Main window.
In wave zoom mode, the
Horizontal Position
and
Horizontal Scale
knobs are used
to adjust the horizontal position and time base of the Zoom window.
How to Set the Trigger/Decoding System
Trigger determines when DSO starts to acquire data and display waveform. Once
trigger is set correctly, it can convert the unstable display to meaningful
waveform.
When DSO starts to acquire data, it will collect enough data to draw waveform
on left of trigger point. DSO continues to acquire data while waiting for trigger
condition to occur. Once it detects a trigger it will acquire enough data
continuously to draw the waveform on right of trigger point.
Trigger control area consists of 1 knob and 2 menu buttons.
Trigger Level
: The knob that set the trigger level; push the knob and the level
