The PWM modulation is the only modulation supported by the Pulse waveform.
The types of modulation are explained in detail in the following sections of this chapter.
Touching the "Shape" button the modulation type menu opens. The possibility to choose the shape is
only available for AM, FM, PM and PWM modulations.
The modulation Shapes (when available) can be:
•
Sine
•
Square
•
Triangle
•
Increase Ramp
•
Decrease Ramp
•
Noise
•
Arbitrary: it allows to load a Modulating Waveform from file. For the file specification please
refer to the "Import from File" section. By default, the "Arbitrary" waveform is a cosine function.
Marker Out behaviour in Modulation Run Mode
If the modulating source is Internal, the Marker Out generates a square wave synchronous with the
modulating waveform. The leading edge of this pulse is positioned at the beginning of the modulating
waveform.
If the modulating source is External, the Marker Out is disabled.
Operator's Manual Simple AFG Application
49