Measuring Signals
Positioning the Cursors
I
CURSORS
SELECT
A
cursor is either active or inactive.
A
box surrounds the active cursor to
signify that it can be positioned by the CURSORS knob. The inactive cursor
does not have a box around it and will stay fixed while you position the other
3
'U
cursor (Figure
3-30).
-I
*Ilr
I
Cursor
Cursor Time Difference
,
Voltage Difference
Inactive Cursor
I
Figure
3-30:
Cursor Measurements
Active Cursor
Selecting a Cursor
-
Select the cursor you want to position by pushing
in the CURSORS knob.
Selecting
a
Waveform
-
On two-channel alternate and chop displays
there are two pairs of cursors with one active cursor apiece. The active
cursors of each pair track together when you move the cursor knob. When
you have more than one waveform recalled from memory, however, you
must use press the SELECT WAVEFORM button
to
move the cursors from
one waveform to another.
Measuring Voltage
Make amplitude or other vertical measurements between two points on a
waveform using this basic procedure:
Step
1
:
Display the signal on screen so that the upper and lower points
you wish to measure are on screen.
Step
2:
In NON-STORE mode use the graticule lines to make a mea-
surement
-
or go to STORE mode and use the rest of this procedure.
Step
3:
In STORE mode, position a cursor on the lower point of the
waveform using the cursor control.
3-34
In Detail
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