Tektronix DG2040 User Manual page 102

Data generator
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Place Mark Here
Select Memory Size
DG2040 Data Generator
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The Place Mark Here selection sets the reference mark at the current cursor
position. The reference mark is displayed as an "M" on the point scale as shown
in Figure 3-11. The interval (D) between the set reference mark and the current
cursor position is displayed as a point difference and as a time difference.
The reference mark only specifies the origin of the delta display. It does not
affect the pattern data definition itself.
Reference Mark
Figure 3 11: Reference mark M" display
Operation.
Do the following to set the reference mark:
Bottom button
Pop up menu
Move the knob icon to the Cursor window in the upper left area of the screen using the up and
down arrow buttons.
Set the cursor to the reference point using the general purpose knob or the numeric keys.
Settings
Place mark here
The Select Memory Size function sets the pattern data memory size. The size
can be set to a value in the range from 360 words to 256K (262144) words. In
some cases the memory size setting is changed by operations that change the
block length. Items that exceed the memory size due to editing operations are
either ignored or discarded.
Number of points and time
between the reference
mark and the cursor
D
Reference
Reference Mark
Point Value and Time
Cursor
Side button
OK
3 19

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