RIGOL DG4000 Series - Manual (Page 102)

RIGOL Chapter 5 Modulated Waveform Output
DG4000 Series User’s Guide 5-2
AM
Modulated waveform usually consists of carrier waveform and modulating
waveform. For amplitude modulation (AM), the amplitude of the carrier waveform
varies with the instantaneous voltage of the modulating waveform.
To Select AM Modulation
Press Mod  Type  AM to enable AM function.
 When Mod is enabled, Sweep or Burst will be disabled automatically (if
enabled currently).
 After AM is enabled, the instrument will generate AM waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
AM carrier waveform could be Sine, Square, Ramp or Arbitrary waveform (except
DC). 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 a desired carrier
waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Frequency
Different carrier waveforms have different frequency ranges as shown in the table
below. For all the carrier waveforms, the default value is 1kHz.
Carrier Waveform Frequency Range
Sine 1μHz to 160MHz
Square 1μHz to 50MHz
Ramp 1μHz to 4MHz
Arbitrary Waveform 1μHz to 40MHz