RFmxSpecAn OBW Configure RBW Filter VI
- Updated2025-10-13
- 3 minute(s) read
Configures the resolution bandwidth (RBW) filter.

Inputs/Outputs
Selector String
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Selector String specifies a selector string comprising of the signal name. If you do not specify the signal name, the default signal instance is used. The default value is "" (empty string). Example: "" "signal::sig1" You can use the RFmxSpecAn Build Signal String VI to build the selector string.
Instrument Handle In
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Instrument Handle In specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI.
RBW Auto
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RBW Auto specifies whether the measurement computes the RBW. Refer to the RBW and Sweep Time section in the Spectral Measurements topic for more details on RBW and sweep time. The default value is True.
RBW (Hz)
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RBW specifies the bandwidth of the RBW filter used to sweep the acquired signal, when you set the RBW Auto parameter to False. This value is expressed in Hz. The default value is 10 kHz.
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RBW Filter Type specifies the response of the digital RBW filter. The default value is Gaussian.
error in (no error)
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error in describes error conditions that occur before this node runs. This input provides standard error in functionality.
Instrument Handle Out
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Instrument Handle Out passes a reference of your RFmx session to the next VI.
error out
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error out contains error information. This output provides standard error out functionality. |
Selector String
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Instrument Handle In
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RBW Auto
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RBW (Hz)
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error in (no error)
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Instrument Handle Out
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error out
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