User Manual

SIGLENT
SSG5000X User Manual 51
3. Int + Ext
Use both, the internal and externally applied modulation signal; this technique can
be used to perform two-tone FM.
FM Shape
Select MOD->FM-> FM Shape. After setting to “Int” or “Int+Ext”, you can select
FM waveform as “Sine” or “Square”.
FM Rate
Select MOD->FM-> FM Rate, you can set the FM rate.
1. The sine wave modulation frequency range is 0.01Hz~100kHz
2. The square wave modulation frequency range is 0.01Hz~20kHz
FM Deviation
Corresponding to different carrier frequencies, the frequency offset range may be
different; the setting range is governed by the following equation: 0.01Hz~N×1MHz.
For the definition of N, refer to the data sheet.
⚫ When the modulation source is set to “Int “, the set value is actually the