RIGOL DG4000 Series - Manual (Page 117)

Chapter 5 Modulated Waveform Output RIGOL
DG4000 Series User’s Guide 5-17
PSK
When PSK (Phase Shift Keying) modulation is selected, you can configure the
generator to “shift” its output phase between two preset phase values (“carrier
phase” and “modulating phase”). The “shift” frequency (PSK Rate) is determined
by the internal signal level or signal level at the [Mod/FSK/Trig] connector at
the rear panel.
To Select PSK Modulation
Press Mod  Type  PSK to enable PSK function.
 When Mod is enabled, Sweep or Burst will be automatically disabled (if
enabled currently).
 After PSK is enabled, the instrument will generate PSK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
PSK carrier waveform could be Sine, Square, Ramp or arbitrary waveform (except
DC), and the default is Sine.
 Press the front panel key Sine, Square, Ramp or Arb  Select Wform
(or User, the pre-defined waveform can not be DC) to select the desired
carrier waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Phase
After carrier waveform shape is selected, press Start Phase to highlight it and use
the numeric keyboard or direction keys and knob to input the desired phase. The
available phase ranges from 0º to 360º and the default value is 0º.