
Operator's Manual
The selected portion is resized to fit the full width of the grid. The degree of magnification, therefore, depends on the size
of the rectangle that you draw.
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.
Rescale Zoom
The zoom's Horizontal units will differ from the source trace, because the zoom is showing a scale, not a measured level.
You can further adjust the setting using the front panel knob or the
. Touch the zoom descriptor
box to activate it, then touch it again to display the Z
x
tab.
Because it is a calculated and not a sampled trace, you can adjust the zoom's Horizontal Scale without changing the
oscilloscope's Timebase (a characteristic shared with math and memory traces).
Quick Zoom
Use the
front panel Zoom button
to quickly create one zoom trace for each displayed channel trace.
NOTE
: Quick zooms are created at the same vertical scale as the source trace and 10x horizontal magnification.
To turn off the quick zooms, press the Zoom button again.
Turn Off Zoom
Turn off a zoom trace the same as you would any other trace:
l
Deselect the
Trace On
checkbox on the Zoom dialog.
l
Touch-and-hold (right-click) the descriptor box until the context menu opens, then choose
Off
.
Rescale Memory or Math Traces
Unlike channel traces, memory (M1 - M2) or math function (F1 - F2) traces can be rescaled directly without having to
create a separate zoom trace. The same set of controls used to rescale zoom traces appear on the
Zoom right-hand
dialog,
or on one of the trace setup dialogs. This applies to any trace that is created as a math function (F
x
) trace,
including traces generated through analysis options and graphs.
923648 Rev A
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