Teledyne LeCroy HDO 4000 Operators Manual - Manual (Page 32)

HDO4000 High Definition Oscilloscope
Zooming Waveforms
The Zoom function magnifies a selected region of a trace. On HDO4000 model oscilloscopes, you can
display up to four zoom traces (Z1 - Z4) taken from any channel, math, or memory trace.
Create Zoom
To create a zoom, touch -and-drag to draw a selection box around any part of the source waveform.
Selected portion of trace.
The zoom will resize the selected portion to fit the full width of the grid. The degree of vertical and
horizontal magnification, therefore, depends on the size of the rectangle that you draw.
The zoom opens in a new grid, with the zoomed portion of the source trace highlighted. If you are using
the Single Grid display option, zooms will open in the same grid as the source trace.
Zoomed area of original trace highlighted.
New zooms are turned on and visible by default. However, you can turn off a particular zoom if the display
becomes too crowded, and the zoom settings are saved in its location, ready to be turned on again when
desired.
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