RIGOL DG4000 Series - Manual (Page 111)

Chapter 5 Modulated Waveform Output RIGOL
DG4000 Series User’s Guide 5-11
ASK
When using ASK (Amplitude Shift Keying) modulation, you can configure the
generator to “shift” its output amplitude between two preset amplitude values
(“carrier amplitude” and “modulating amplitude”). The “shift” rate (ASK Rate) is
determined by the internal signal level or signal level at the [Mod/FSK/Trig]
connector at the rear panel.
To Select ASK Modulation
Press Mod  Type  ASK to enable ASK function.
 When Mod is enabled, Sweep or Burst will be disabled automatically (if
enabled currently).
 After ASK is enabled, the instrument will generate ASK waveform with the
currently specified carrier and modulating waveforms.
To Select Carrier Waveform Shape
ASK 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 the desired
carrier waveform shape.
 Pulse, Noise and DC could not be used as carrier waveform.
To Set Carrier Amplitude
After selecting carrier waveform shape, press Ampl/HiLevel to highlight “Ampl”,
and then use the numeric keyboard or direction keys and knob to input the desired
amplitude. The available amplitude range is limited by Resistance and
Freq/Period. Please refer to the “Output Characteristics” described in
Specifications.