Table Of Contents

IVI Spectrum Analyzer Configuration Nodes (G Dataflow)

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    Last Modified: October 23, 2017

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    Configures the acquisition properties of the spectrum analyzer.
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    Configures the frequency range of the spectrum analyzer using the center frequency and the frequency span. If span corresponds to zero Hertz, then the spectrum analyzer operates in time-domain mode. Otherwise, spectrum analyzer operates in frequency-domain mode. This node modifies the IviSpecAn>>Basic Operation>>Frequency Start and IviSpecAn>>Basic Operation>>Frequency Stop properties as follows: Frequency Start = Center Frequency - Span/2 Frequency Stop = Center Frequency + Span/2 Note: In auto-coupled mode, resolution bandwidth (RBW), video bandwidth (VBW), and sweep time may be affected by this node.
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    Configures the frequency offset of the spectrum analyzer. This affects the setting of the spectrum analyzer's absolute frequencies, such as start, stop, center, and marker. This node does not modify the settings for differences of frequencies, such as span and delta marker.
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    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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    Configures the vertical settings of the spectrum analyzer. This corresponds to settings like amplitude units, input attenuation, input impedance, reference level, and reference level offset.
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    Configures the coupling and sweeping properties of the spectrum analyzer.
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    Configures the type of trace to acquire.
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    Returns the specific driver defined trace name that corresponds to the one-based index specified by the Index parameter.
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    This node queries the read-only IviSpecAn>>Basic Operation>>Trace Size property.
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    Adjusts the preselector to obtain the maximum readings for the current start and stop frequency. This node may affect the marker configuration.

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