RIGOL DSG3000 Series - Manual (Page 76)

RIGOL Chapter 2 Front Panel Operations
2-36 DSG3000 User’s Guide
4. Clock Frequency
Press I/Q  BaseBand  Clock Freq to set the clock rate of the ARB output.
You can modify this parameter using the numeric keyboard or knob.
 The units available are GHz, MHz, kHz and Hz.
 Press Enter to select the default unit (MHz).
 You can press the left/right direction keys to enter the parameter editing
state and move the cursor to the specified digit and use the up/down
direction keys or knob to modify the parameter value.
 You can also use the up/down direction keys or knob to modify the clock
frequency at the current step.
 Press Step to set the step.
NOTE: When loading the ARB file, this value will be automatically set to the
clock frequency of the current ARB file.
5. Trigger
(1) Trigger Mode
Select the trigger mode of IQ modulation baseband output.
Press Trig Mode to select “Auto”, “Key”, “Bus” or “Ext”.
 Auto Trigger
This is the default mode. The RF signal generator fulfills the trigger
condition at any time and it will output the IQ baseband signal
continuously.
 Key Trigger
After selecting the “Key” trigger mode, the instrument will output the
baseband signal each time Trigger on the front panel is pressed.
 Bus Trigger
After selecting the “Bus” trigger mode, the instrument will output the
baseband signal each time the *TRG command is sent.
 External Trigger
When selecting the “Ext” trigger mode, the RF signal generator
receives the trigger signal input from the [TRIGGER IN] connector
(as shown in the figure below) on the rear panel. The instrument will
output the baseband signal each time a TTL pulse signal with the
specified polarity is received.