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Keysight EXG and MXG X-Series Signal Generators User’s Guide
377
Custom Digital Modulation (Option 431)
Using Customized Burst Shape Curves
Display the Burst Shape
Press
Display Burst Shape
.
This displays a graphical representation of the waveform’s rise and fall characteristics, as shown in
Figure 16-16
Burst Shape
To return the burst to the default conditions, press the following keys:
Return > Return
>
Return
>
Confirm Exit From Table Without Saving
>
Restore Default Burst
Shape
.
Storing a User-Defined Burst Shape Curve
1.
Press
Define User Burst Shape
>
More (1 of 2)
>
Load/Store
>
Store To File
.
If there is already a file name from the
Catalog of SHAPE Files
occupying the active entry
area, press the following keys:
Editing Keys
>
Clear Text
2.
Enter a file name (for example,
NEWBURST
) using the alpha keys and the numeric keypad.
The maximum file name length is 23 characters (alphanumeric and special characters).
3.
Press
Enter
.
The contents of the current
Rise Shape
and
Fall Shape
table editors are stored to the
Catalog
of SHAPE Files
. This burst shape can now be used to customize a modulation or as a basis for a
new burst shape design.
Recalling a User-Defined Burst Shape Curve
Once a user-defined burst shape file is stored in memory, it can be recalled for use with real-time
I/Q baseband generated digital modulation.
This example requires a user-defined burst shape file stored in memory. If you have not created and
stored a user-defined burst shape file, complete the steps in the previous sections,
User-Defined Burst Shape Curve” on page 375
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