Agilent X-Series Signal Generators SCPI Command Reference 37
Basic Function Commands
Digital Modulation Subsystem—N5172B/82B ([:SOURce])
:DM:SOURce
Supported N5172B/82B
[:SOURce]:DM:SOURce EXTernal|INTernal|SUM
[:SOURce]:DM:SOURce?
This command selects the I/Q modulator source.
This softkey is found under the I/Q menu.
EXTernal This choice selects a 50 ohm impedance for the I and Q input connectors and
routes the applied signals to the I/Q modulator.
INTernal This choice selects the internal baseband generator as the source for the I/Q
modulator and requires Option 65x.
Sum This choice selects the internal baseband generator and combines that signal with
an external source and routes the applied signals to the I/Q modulator and
requires Option 65x.
*RST INT
:DM:SRATio
Supported N5172B/82B
[:SOURce]:DM:SRATio <val><unit>
[:SOURce]:DM:SRATio?
This command sets the power level difference (ratio) between the source one and source two signals
when the two signals are summed together. A positive ratio value reduces the amplitude for source
two, while a negative ratio value reduces the amplitude for source one.
*RST
+0.00000000E+000
Range  50 dB
Key Entry Summing Ratio (SRC1/SRC2) x.xx dB
:DM:STATe
Supported N5172B/82B
[:SOURce]:DM:STATe ON|OFF|1|0
[:SOURce]:DM:STATe?
This command enables or disables the I/Q modulator.
The I/Q modulator is enabled whenever a digital format is turned on.
The I/Q annunciator will be shown on the signal generator display whenever the I/Q modulator is
on.
ON (1) This choice enables the internal I/Q modulator.
Key Entry External Internal Sum