RFmxSpecAn NF Configure Measurement Method VI

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 specifies the RFmx session refnum. Instrument Handle In is obtained from the RFmxInstr Initialize NIRFSA VI.

Measurement Method specifies the measurement method used to perform the NF measurement. Refer to the NF concept topic for more information. The default value is Y-Factor.

Y-Factor (0)	The NF measurement computes the noise figure of the DUT using a noise source with a calibrated excess-noise ratio (ENR). Refer to NF Y-Factor NS Type for information about the supported devices and their corresponding noise source type.
Cold Source (1)	The NF measurement computes the noise figure of the DUT using a 50 ohm microwave termination as the noise source. Supported Devices: PXIe-5644/5645/5646/5840/5841/5842/5860, PXIe-5830/5831/5832

error in describes error conditions that occur before this node runs. This input provides standard error in functionality.

Instrument Handle Out passes a reference of your RFmx session to the next VI.

error out contains error information. This output provides standard error out functionality.