Table Of Contents

IviSpecAn Configure Frequency Start Stop (G Dataflow)

Version:
    Last Modified: October 24, 2017

    Configures the frequency range defining its start frequency and its stop frequency. If the start frequency is equal to the stop frequency, then the spectrum analyzer operates in the time-domain mode. Otherwise, the spectrum analyzer operates in frequency-domain mode. Notes: (1) In auto-coupled mode, resolution bandwidth (RBW), video bandwidth (VBW), and sweep time may be affected by this node.

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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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    start frequency (1.0 MHz)

    The start frequency of the frequency sweep. The driver uses this value to set the IviSpecAn>>Basic Operation>>Frequency Start property. Units: Hertz Default Value: 1.0 MHz

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    stop frequency (10.0 MHz)

    The stop frequency of the frequency sweep. The driver uses this value to set the IviSpecAn>>Basic Operation>>Frequency Stop property. Units: Hertz Default Value: 10.0 MHz

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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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