Agilent N5181A/82A MXG Signal Generators SCPI Command Reference 25
Basic Function Commands
Digital Modulation Subsystem—N5182A ([:SOURce])
:DM:EXTernal:POLarity
Supported N5182A
[:SOURce]:DM:EXTernal:POLarity NORMal|INVert
[:SOURce]:DM:EXTernal:POLarity?
This command sets the phase polarity for the I/Q signal.
NORMal This choice selects normal phase polarity for the I and Q signals.
INVert This choice flips the I and Q signals by routing the I signal to the Q input of the
I/Q modulator and the Q signal to the I input.
*RST NORM
Key Entry Int Phase Polarity Normal Invert
:DM:IQADjustment:DELay
Supported N5182A
[:SOURce]:DM:IQADjustment:DELay <value><unit>
[:SOURce]:DM:IQADjustment:DELay?
This command enables you to change the absolute phase of both I and Q with respect to triggers and
markers. A positive value delays I and Q. This value affects both the external I/Q out signals and the
baseband signal modulated on the RF output. This adjustment cannot be used with constant envelope
modulation and does not affect external I/Q inputs.
The variable <value> is expressed in seconds.
*RST +0.00000000E+000
Range −400 νσ το 400 νσ
Key Entry I/Q Delay
Remarks This command is effective only if the state of the I/Q adjustment function is set to
ON. Refer to “:DM:IQADjustment[:STATe]” on page 30.
:DM:IQADjustment:EXTernal:COFFset
Supported N5182A
[:SOURce]:DM:IQADjustment:EXTernal:COFFset <value>
[:SOURce]:DM:IQADjustment:EXTernal:COFFset?
This command sets the common mode offset voltage for both the in- phase (I) and quadrature- phase
(Q) signals going to the rear panel I and Q output connectors.
The variable <value> is expressed in units of volts (mV–V).
*RST +0.00000000E+000
Range ∠2.5 to 2.5V
Key Entry Common Mode I/Q Offset
Remarks This command is effective only if the state of the I/Q adjustment function is set to
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