Agilent X-Series Signal Generators User’s Guide 197
Basic Digital Operation (Option 653/655/656/657)
Scaling a Waveform
Setting Waveform Runtime Scaling
Runtime scaling scales the waveform data during playback; it does not affect the stored data. You can
apply runtime scaling to either a segment or sequence, and set the scaling value either while the ARB
is on or off. This type of scaling is well suited for eliminating DAC over–range errors. Runtime scaling
adjustments are not cumulative; the scaling value is applied to the original amplitude of the
waveform file. There are two ways to save the runtime scaling setting: by using the save function
(page 69) and by saving the setting to the file header (page 157). Saving to the file header saves the
value with the waveform file, saving with the Save function stores the value as the current
instrument setting.
Use this example to learn how to scale the currently selected waveform.
1. Select the waveform to which you want to apply scaling:
a. Press Mode > Dual ARB > Select Waveform.
b. Highlight the desired waveform (segment or sequence).
c. Press Select Waveform.
2. Play the selected waveform: Press ARB Off On until On highlights.
3. Set the Waveform Runtime Scaling value:
a. Press ARB Setup > Waveform Runtime Scaling.
b. Enter a scaling value.
The signal generator automatically applies the new scaling value to the waveform. There is no
single value that is optimal for all waveforms. To achieve the maximum dynamic range, use
the largest scaling value that does not result in a DAC over–range error.
c. Press Return.
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