RFmxSpecAn ACP Fetch Offset Measurement (Array) VI
- Updated2025-10-13
- 3 minute(s) read
Returns the absolute and relative powers measured in the offset channel. The relative powers are measured relative to the integrated power of the power reference carrier. The relative powers are not measured if you set the ACP Carrier Mode property for the reference carrier to Passive.

Inputs/Outputs
Selector String
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Selector String specifies a selector string comprising of the signal name and result name. If you do not specify the signal name, the default signal instance is used. If you do not specify the result name, the default result instance is used. The default value is "" (empty string). Example: "" "signal::sig1" "result::r1" "signal::sig1/result::r1" 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.
Timeout (s)
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Timeout specifies the timeout, in seconds, for fetching the specified measurement. Set this value to an appropriate time, longer than expected for fetching the measurement. A value of -1 specifies that the VI waits until the measurement is complete. The default value is 10.
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.
Lower Absolute Power (dBm or dBm/Hz)
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Lower Absolute Power returns the array of lower offset channel powers.
Upper Absolute Power (dBm or dBm/Hz)
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Upper Absolute Power returns the array of upper offset channel powers.
Instrument Handle Out
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Instrument Handle Out passes a reference of your RFmx session to the next VI.
Lower Relative Power (dB)
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Lower Relative Power returns the array of lower offset channel powers, in dB, measured relative to the integrated power of the ACP Results Lower Offset Pwr Ref Carrier property.
Upper Relative Power (dB)
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Upper Relative Power returns the array of upper offset channel powers, in dB, measured relative to the integrated power of the ACP Results Upper Offset Pwr Ref Carrier property.
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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Timeout (s)
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error in (no error)
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Lower Absolute Power (dBm or dBm/Hz)
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Instrument Handle Out
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error out
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