Table Of Contents

IviSpecAn Configure Sweep Coupling (G Dataflow)

Last Modified: October 24, 2017

Configures the coupling and sweeping properties of the spectrum analyzer.

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sweep time auto (False)

Enables sweep time auto. The driver uses this value to set the IviSpecAn>>Basic Operation>>Sweep Time_AUTO property. Valid Values: TRUE - Sweep time is automatically selected FALSE - Sweep time is manually selected Default Value: FALSE

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video bandwidth auto (False)

Enables video bandwidth auto coupling. The driver uses this value to set the IviSpecAn>>Basic Operation>>Video Bandwidth_AUTO property. Valid Values: TRUE - Video bandwidth is automatically selected FALSE - Video bandwidth is manually selected Default Value: FALSE

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sweep time auto (False)

Enables sweep time auto. The driver uses this value to set the IviSpecAn>>Basic Operation>>Sweep Time_AUTO property. Valid Values: TRUE - Sweep time is automatically selected FALSE - Sweep time is manually selected Default Value: FALSE

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instrument handle

The instrument handle that you obtain from the IviSpecAn Initialize Node or IviSpecAn 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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resolution bandwidth auto (False)

Enables resolution bandwidth auto coupling. The driver uses this value to set the IviSpecAn>>Basic Operation>>Resolution Bandwidth_AUTO property. Valid Values: TRUE - Resolution bandwidth is automatically selected. FALSE - Resolution bandwidth is manually selected. Default Value: FALSE

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resolution bandwidth (1.0 HHz)

Specifies the measurement resolution bandwidth. The driver uses this value to set the IviSpecAn>>Basic Operation>>Resolution Bandwidth property. Units: Hertz Default Value: 1.0 HHz Note: This value is ignored when the Resolution Bandwidth Auto parameter or the IviSpecAn>>Basic Operation>>Resolution Bandwidth_AUTO is set to TRUE

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video bandwidth (1.0 MHz)

Specifies the video bandwidth of the post-detection filter. The driver uses this value to set the IviSpecAn>>Basic Operation>>Video Bandwidth property. Units: Hertz Default Value: 1.0 MHz Note: This value is ignored when the Video Bandwidth Auto parameter or the IviSpecAn>>Basic Operation>>Video Bandwidth_AUTO is set to TRUE.

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sweep time (1.0)

The length of time to complete one sweep. The driver uses this value to set the IviSpecAn>>Basic Operation>>Sweep Time property. Units: seconds Default Value: 1.0 Note: This value is ignored when the Sweep Time Auto parameter or the IviSpecAn>>Basic Operation>>Sweep Time_AUTO is set to TRUE.

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instrument handle out

The instrument handle that you obtain from the IviSpecAn Initialize Node or IviSpecAn 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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