User Manual

SIGLENT
SSG3000X User Manual 37
2.4.1.2 AM Source
An internal and/or external source can be selected for amplitude modulation.
MOD->AM->AM Source to set ―Int‖ or ―Ext‖ or ―Int + Ext‖. The default is ―Int‖.
1. Int
wheninternal modulation is selected, the AM Shape, AM frequency, and AM depth are
controlled by the instrument.The internal modulation setting uses the LF generator as
the modulation signal source. When modulation is activated, the LF output will be
disabled, if it was previously activated.
2. Ext
Use an externally applied modulation signal. The external signal is input via the【EXT
MOD INPUT】connector on the rear panel of the instrument. The modulated signal can be
an arbitrary waveform. At this time, the modulation depth is controlled by the level of the
externally modulated signal, and the sensitivity of the external modulation source level to
the modulation depth is 50%/V.
3. Int + Ext
Use both the internal and externally applied modulation signals, this technique can be
used to source dual tone AM.
2.4.1.3 AM Shape
The SSG3000X supports modulation waveforms for internal ―sine‖ and ―square‖
modulation sources. Select MOD->AM-> AM Shape, after setting to ―Int‖ or ―Int+Ext‖, you
can select AM waveform as ―Sine‖ or ―Square‖.