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Keysight EXG and MXG X-Series Signal Generators User’s Guide
Custom Digital Modulation (Option 431)
Using the Arbitrary Waveform Generator
If you have not created and stored a user-defined, single–carrier, digital modulation
state, complete the steps in the previous sections,
Creating a Custom Digital Modulation State
Storing a Custom Digital Modulation State
on page 382, then preset the signal
generator to clear the stored user–defined, digital modulation waveform from volatile ARB memory.
Figure 16-21
Recalling a Custom Digital Modulation State
1.
In the Quick Setup menu, press
Custom Digital Mod State
.
2.
Highlight the desired file (for example,
NADCQPSK
).
3.
Press
Select File
>
Return
.
4.
Press
Digital Modulation Off On
until On is highlighted.
The instrument regenerates the custom, digital modulation waveform in volatile memory. After
waveform generation, the custom, digital modulation waveform is available to be modulated on the
RF output.
For instruction on configuring the RF output, see
Defining a Modulation
You can build a unique modulation by utilizing two tools, the FSK table editor or the I/Q table
editor. These tables map data onto specific absolute modulation states. To map transitions
between states, a differential table editor is provided.
Mode > ARB Custom Modulation > Single Carrier Setup > Quick Setup
Loads the highlighted file
into the instrument
memory.
These keys manage the table
of DMOD files in internal
For details on each key, use key
help as described on
.
