RIGOL DG4000 Series - Manual (Page 129)

Chapter 5 Modulated Waveform Output RIGOL
DG4000 Series User’s Guide 5-29
OSK
When OSK (Oscillation Shift Keying) modulation is selected, users can configure
the generator to output a sine signal with intermittent oscillation as shown in the
figure below (the carrier waveform is 100Hz and the OSK rate is 10kHz). The
start-oscillation and stop-oscillation of the internal crystal oscillator are controlled
by the internal signal level or signal level at the [Mod/FSK/Trig] connector at
the rear panel. When the internal crystal oscillator starts to oscillate, the
instrument starts to output the carrier waveform and when the internal crystal
stops oscillating, the output stops.
Figure 5-1 OSK Modulated Waveform
To Select OSK Modulation
Press Mod  Type  OSK to enable OSK function.
 When Sine is currently selected, OSK in the Type is not available.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After OSK is enabled, the instrument will generate OSK waveform with the
currently specified carrier and modulating waveforms.