Table Of Contents

Configure Signal Bandwidth (G Dataflow)

Version:
    Last Modified: December 19, 2017

    Configures the signal bandwidth of the arbitrary waveform.

    The NI-RFSG device must be in the Configuration state before you call this node.

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    session in

    Instrument session obtained from Initialize With Options .

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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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    signal bandwidth

    Signal bandwidth used by NI-RFSG for generating an RF output signal. NI-RFSG sets the Signal Bandwidth property to this value.

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    session out

    Reference to your instrument session passed to the next node.

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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.

    NI-RFSG Signal Bandwidth Definition

    NI-RFSG defines signal bandwidth as twice the maximum baseband signal deviation from 0 Hz. Usually, the baseband signal center frequency is 0 Hz. In such cases, the signal bandwidth is the baseband signal's minimum frequency subtracted from its maximum frequency, or f max - f min. NI-RFSG uses this value to optimally configure the center frequency of the upconverter to help minimize phase noise. The generated signal is not filtered to achieve the set bandwidth. However, specifying a bandwidth smaller than the actual bandwidth of the signal could potentially result in spectral distortion.

    Search within the programming environment to access the following installed examples:

    • RFSG Getting Started Script (Script)
    • RFSG Arbitrary Waveform Generation (Arb)

    Where This Node Can Run:

    Desktop OS: Windows

    FPGA: Not supported

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

    Hardware Support:

    This node supports the following hardware:

    • PXIe-5644/5645/5646
    • PXIe-5673E
    • PXIe-5820/5840


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