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IviRFSigGen Configure IQ Impairment [IQI] (G Dataflow)

Last Modified: September 7, 2018

Configures the settings that simulate or correct impairment for the signal generator's IQ modulation. These settings are only used if the IviRFSigGen>>Modulate IQ Impairment Extended Properties>>IQ Impairment Enabled property is set to TRUE.

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instrument handle

The instrument handle that you obtain from the IviRFSigGen Initialize Node or IviRFSigGen Initialize With Options Node. The handle identifies a particular instrument session.

Default: None

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error in

Error conditions that occur before this node runs.

The node responds to this input according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Default: No error

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i offset (0.0)

Specifies an origin offset voltage to the I signal. The range of allowable values is -100% to +100%. The driver uses this value to set the IviRFSigGen>>IQ>>IQ Impairment>>IQ I Offset property. Units: Percent (%) Default Value: 0.0

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q offset (0.0)

Specifies an origin offset voltage to the Q signal. The range of allowable values is -100% to +100%. The driver uses this value to set the IQ_Q_OFFSET property. Units: Percent (%) Default Value: 0.0

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ratio (0.0)

Specifies the gain imbalance between the I and Q channels. For no imbalance this value is set to 0 %. The driver uses this value to set the IviRFSigGen>>IQ>>IQ Impairment>>IQ Ratio property. Units: Percent (%) Default Value: 0.0

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skew (0.0)

Specifies the adjustment of the phase angle between the I and Q vectors. If this skew is zero, the phase angle is 90 degrees. The driver uses this value to set the IviRFSigGen>>IQ>>IQ Impairment>>IQ Skew property. Units: Degrees Default Value: 0.0

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instrument handle out

The instrument handle that you obtain from the IviRFSigGen Initialize Node or IviRFSigGen Initialize With Options Node. The handle identifies a particular instrument session.

Default: None

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error out

Error information.

The node produces this output according to standard error behavior.

Standard Error Behavior

Many nodes provide an error in input and an error out output so that the node can respond to and communicate errors that occur while code is running. The value of error in specifies whether an error occurred before the node runs. Most nodes respond to values of error in in a standard, predictable way.

error in does not contain an error error in contains an error
If no error occurred before the node runs, the node begins execution normally.

If no error occurs while the node runs, it returns no error. If an error does occur while the node runs, it returns that error information as error out.

If an error occurred before the node runs, the node does not execute. Instead, it returns the error in value as error out.

Where This Node Can Run:

Desktop OS: Windows

FPGA: Not supported

Web Server: Not supported in VIs that run in a web application


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