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138 Chapter 6
Custom Arb Waveform Generator
Working with Modulation Types
4. Press Return > Goto Row > 0011 0000 > Enter; this is row 48.
5. Press the
Delete Row softkey 16 times.
Repeat this pattern of steps using the following table:
6. Press
Display I/Q Map to view the new constellation that has been
created. The I/Q State Map in this example has 128 symbols.
7. Press
Return. When the contents of an I/Q Values table have not
been stored, I/Q Values (UNSTORED) appears on the display.
8. Press
More (1 of 2) > Load/Store > Store To File.
If there is already a file name from the Catalog of IQ Files
occupying the active entry area, press the following keys:
Editing Keys > Clear Text
9. Enter a file name (for example, 128QAM) using the alpha keys and
the numeric keypad.
10. Press
Enter.
The user-defined I/Q State Map should now be stored in the Catalog of IQ Files.
Goto Row... Press the Delete Row softkey...
0110 0000 (96) 16 times
1001 0000 (144) 16 times
1100 0000 (192) 16 times
0001 0000 (16) 4 times
0001 0100 (20) 4 times
0001 1000 (24) 8 times
0011 0000 (48) 4 times
0011 0100 (52) 4 times
0011 1000 (56) 4 times
0101 1000 (88) 8 times
0111 0000 (112) 4 times
0111 0100 (116) 4 times
0111 1000 (120) 8 times