RIGOL DG5000 Series - Manual (Page 91)

Chapter 4 Common Modulation Output RIGOL
User’s Guide for DG5000 4-15
To Set Carrier Frequency
After the carrier waveform shape is selected, you can press Freq/Period to highlight
“Freq”, and then use the numeric keyboard or knob to input desired frequency value.
The available carrier frequency varies with different carrier waveforms.
 Sine: 1 μHz to 250 MHz
 Square: 1 μHz to 120 MHz
 Ramp: 1 μHz to 5 MHz
 Arbitrary waveform: 1 μHz to 50 MHz
To Select Modulating Waveform Source
Press Mod  Source to select “Int” or “Ext” modulating waveform source.
1. Internal Source
When internal source is selected, the modulating waveform is set as a Square with
50% duty cycle, and the “shift” frequency at which the output frequency shifts
between “carrier frequency” and “modulation frequency” is determined by “FSK
Rate”.
2. External Source
When external source is selected, the generator accepts the external modulating
signal from the ExtTrig connector (as shown in the picture bellow) at the rear
panel.
Note: The ExtTrig connector used to control FSK modulation externally is
different from the Mod in/I connector used to control AM/FM/PM modulation
externally. In FSK modulation, ExtTrig has an adjustable edge polarity.