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Chapter 7 173
Custom Real Time I/Q Baseband
Working with Burst Shapes
You can also design burst shape files externally and download the data to the signal generator. For
more information, see the E8257D/67D PSG Signal Generators Programming Guide.
To Create and Store User-Defined Burst Shape Curves
Using this procedure, you learn how to enter rise shape sample values and mirror them as fall shape
values to create a symmetrical burst curve.
1. Press
Preset.
2. Press
Mode > Custom > Real Time I/Q Baseband > Burst Shape.
3. Press
Define User Burst Shape > More (1 of 2) > Delete All Rows > Confirm Delete Of All Rows.
4. Enter values similar to the sample values in the following table:
a. Highlight the value (1.000000) for sample 1.
b. Press
.4 > Enter.
c. Press
.6 > Enter.
d. Enter the remaining values for samples 3 through 9 from the table above.
e. Press
More (2 of 2) > Edit Fall Shape > Load Mirror Image of Rise Shape > Confirm Load Mirror Image of Rise Shape.
This changes the fall shape values to a mirror image of the rise shape values.
Rise Shape Editor
Sample Value Sample Value
0 0.000000 5 0.900000
1 0.400000 6 0.950000
2 0.600000 7 0.980000
3 0.750000 8 0.990000
4 0.830000 9 1.000000