RFmxSpecAn ACP Read VI
- Updated2025-10-13
- 3 minute(s) read
Configures hardware for acquisition, performs measurement on acquired data, and returns the adjacent channel power (ACP) measurement results.

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.
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. 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.
Offset Ch1 Lower Relative Power (dB)
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Offset Ch1 Lower Relative Power returns the power measured in offset 1 in the negative band, relative to the power measured in the reference carrier specified using the ACP Results Lower Offset Pwr Ref Carrier property.
Offset Ch1 Upper Relative Power (dB)
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Offset Ch1 Upper Relative Power returns the power measured in offset 1 in the positive band, relative to the power measured in the reference carrier specified using the ACP Results Upper Offset Pwr Ref Carrier property.
Instrument Handle Out
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Instrument Handle Out passes a reference of your RFmx session to the next VI.
Carrier Absolute Power (dBm or dBm/Hz)
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Carrier Absolute Power returns the power measured in carrier 0. The carrier power is reported in dBm or dBm/Hz based on the value of the ACP Power Units property.
Offset Ch0 Lower Relative Power (dB)
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Offset Ch0 Lower Relative Power returns the power measured in offset 0 in the negative band, relative to the power measured in the reference carrier specified using the ACP Results Lower Offset Pwr Ref Carrier property.
Offset Ch0 Upper Relative Power (dB)
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Offset Ch0 Upper Relative Power returns the power measured in offset 0 in the positive band, relative to the power measured in the reference carrier specified using 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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Offset Ch1 Lower Relative Power (dB)
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Instrument Handle Out
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error out
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