RFmxInstrMX.FetchRawIQData Method

public int FetchRawIQData(
	string selectorString,
	double timeout,
	int recordsToFetch,
	long samplesToRead,
	ref ComplexWaveform<ComplexSingle> data
)

Public Function FetchRawIQData ( 
	selectorString As String,
	timeout As Double,
	recordsToFetch As Integer,
	samplesToRead As Long,
	ByRef data As ComplexWaveform(Of ComplexSingle)
) As Integer

Parameters

selectorString  String

Pass an empty string.

timeout  Double

Specifies the timeout, in seconds, for fetching the raw IQ data. A value of -1 specifies that the VI waits until all data is available. A value of 0 specifies the VI immediately returns available data. The default value is 10.

recordsToFetch  Int32

Specifies the record to retrieve. Record numbers are zero-based. The default value is 0.

samplesToRead  Int64

Specifies the number of samples to fetch. A value of -1 specifies that RFmx fetches all samples. The default value is -1.

data  ComplexWaveformComplexSingle

Returns the complex-value time domain data array. The real and imaginary parts of this complex data array correspond to the in-phase (I) and quadrature-phase (Q) data, respectively. To calculate the instantaneous power of a sampled I/Q point, use the equation (I2 + Q2) / 2R, where R is the input impedance in ohms. For RFmx, R = 50 ohms.

Return Value

Reference