RFmxWlanMXPowerRampResults.FetchFallTrace Method

public int FetchFallTrace(
	string selectorString,
	double timeout,
	ref AnalogWaveform<float> rawWaveform,
	ref AnalogWaveform<float> processedWaveform,
	ref AnalogWaveform<float> threshold,
	ref AnalogWaveform<float> powerReference
)

Public Function FetchFallTrace ( 
	selectorString As String,
	timeout As Double,
	ByRef rawWaveform As AnalogWaveform(Of Single),
	ByRef processedWaveform As AnalogWaveform(Of Single),
	ByRef threshold As AnalogWaveform(Of Single),
	ByRef powerReference As AnalogWaveform(Of Single)
) As Integer

Parameters

selectorString

Type: SystemString
Specifies a selector string comprising of the result name. If you do not specify the result name, the default result instance is used. Example:
""
""
"result::r1"
You can use the BuildResultString(String) method to build the selector string .

timeout

Type: SystemDouble
Specifies the timeout 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 method waits until the measurement is complete. This value is expressed in seconds.

rawWaveform

Type: NationalInstrumentsAnalogWaveformSingle
Upon return, contains the power versus time trace of the acquired waveform at the end of the burst.

processedWaveform

Type: NationalInstrumentsAnalogWaveformSingle
Upon return, contains the power versus time trace of the power envelope of the acquired waveform at the end of the burst.

threshold

Type: NationalInstrumentsAnalogWaveformSingle
Upon return, contains the threshold trace indicating the 10 percent and the 90 percent power levels.

powerReference

Type: NationalInstrumentsAnalogWaveformSingle
Upon return, contains the power reference trace which indicates the 100% power level, corresponding to the steady state average power level of the final portion of the burst.

Return Value

Reference