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Chapter 14, Oscilloscope Screen
Field Descriptions
Oscilloscope Marker Menu Fields
Figure 83
Markers on the Oscilloscope
Marker To:
Position
394
How the Oscilloscope Displays Measurements
The digital oscilloscope screen is 417 pixels wide. Several measurement samples
may be taken for each pixel as a signal is processed (at 100 ns/sample). The
number of samples depends on the sweep speed (
several thousand to one sample per pixel. The level displayed for each pixel is the
average level of the sample or samples taken for each pixel.
causes the marker to move to the maximum value of the average level
Peak+
measured on the display.
causes the marker to move to the minimum value of the average level
Peak
measured on the display.
Because these functions look at the average value for each displayed pixel, the
marker may not appear directly on the displayed peak of a noisy signal.
This field indicates the number of scale divisions from the left side of the screen to
the marker.
Use the DATA keys or cursor-control knob to move the marker to any point on
the displayed signal.
oscscrn5.wmf
), and can vary from
Time/div
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