RIGOL DG4000 Series - Manual (Page 130)

RIGOL Chapter 5 Modulated Waveform Output
DG4000 Series User’s Guide 5-30
To Select Carrier Waveform Shape
OSK carrier waveform can only be sine waveform. Press Sine at the front panel.
To Set Carrier Frequency
After carrier waveform shape is selected, press Freq/Period to highlight “Freq”
and use the numeric keyboard or direction keys and knob to input the desired
frequency. The range is from 1μHz to 160MHz.
To Select Modulating Waveform Source
Press Mod  Source to select “Int” or “Ext” modulation source.
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square
with 50% duty cycle. At this point, the intermittence time and oscillate time of
the output signal is determined by the OSK “Rate”.
2. External Source
When external source is selected, the generator accepts external modulating
signal from the [Mod/FSK/Trig] connector at the rear panel.
[Mod/FSK/Trig]