RIGOL Chapter 2 Front Panel Operations
2-30 DSG800 User Guide
2. External Source
When "Ext" is selected, the RF signal generator receives the in-phase baseband
signal and quadrature phase modulating signal of I/Q modulation input from the
[I IN] and [Q IN] connectors (as shown in the figures below) at the rear panel
respectively.
Tip: When an external baseband signal is input and the baseband output is
turned "On", the instrument can output the I (In-Phase) components and Q
(Quadrature Phase) components of the I/Q modulation baseband signal
generated by the built-in baseband generator (wavetable) from the [I OUT]
and [Q OUT] connectors at the rear panel respectively.
Baseband Signal
1. Baseband Output
Press BaseBand Switch to select "On" or "Off".
On: turn on the baseband output function. The RF signal generator outputs
the I (In-Phase) and Q (Quadrature Phase) components of the I/Q
modulation baseband signal from the [I OUT] and [Q OUT] connectors at
the rear panel respectively.
Off: turn off the baseband output function.
2. Baseband Level
Press BaseBand Level to set the amplitude of the baseband output signal.
Use the numeric keyboard to input the amplitude value and select the
desired unit from the pop-up unit menu.
The amplitude units available are V, mV, uV, nV and dBm.
You can press Backspace to delete the number at the left of the cursor.
You can press the left/right arrow key to enter the parameter editing state
and move the cursor to the specified digit; then, rotate the knob to modify
the parameter value.
You can also rotate knob to modify the amplitude at the current step.
You can press Step to set the step.
3. ARB
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