RFmx GSM DotNET

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RFmxGsmMXModAccResults.FetchIQImpairments Method

  • Updated2024-07-17
  • 2 minute(s) read
RFmxGsmMXModAccResults.FetchIQImpairments Method

RFmxGsmMXModAccResultsFetchIQImpairments Method

Fetches the origin offset and gain imbalance measurement results for GSM/EDGE/EGPRS.

Namespace: NationalInstruments.RFmx.GsmMX
Assembly: NationalInstruments.RFmx.GsmMX.Fx40 (in NationalInstruments.RFmx.GsmMX.Fx40.dll) Version: 24.5.0.49286 (24.5.0.49286)

Syntax

public int FetchIQImpairments(
	string selectorString,
	double timeout,
	out double meanIQGainImbalance,
	out double maximumIQGainImbalance,
	out double meanIQOriginOffset,
	out double maximumIQOriginOffset
)
Public Function FetchIQImpairments ( 
	selectorString As String,
	timeout As Double,
	<OutAttribute> ByRef meanIQGainImbalance As Double,
	<OutAttribute> ByRef maximumIQGainImbalance As Double,
	<OutAttribute> ByRef meanIQOriginOffset As Double,
	<OutAttribute> ByRef maximumIQOriginOffset As Double
) As Integer

Parameters

selectorString  String
Specifies a selector string comprising of the result name. If you do not specify the result name, the default result instance is used. The default is "" (empty string).
Example:
""
"result::r1"
You can use the BuildResultString(String) method to build the selector string.
timeout  Double
Specifies the timeout for fetching the specified measurement. This value is expressed in seconds. 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.
meanIQGainImbalance  Double
Upon return, contains the mean of I/Q gain imbalance values measured over all acquisition time slots. This value is expressed in dB. The presence of quadrature skew in the signal affects the measurement of I/Q gain imbalance.
maximumIQGainImbalance  Double
Upon return, contains the maximum of I/Q gain imbalance values measured over all acquisition time slots. This value is expressed in dB. The presence of quadrature skew in the signal affects the measurement of I/Q gain imbalance.
meanIQOriginOffset  Double
Upon return, contains the mean of I/Q origin offset values measured over all acquisition time slots. This value is expressed in dB. Presence of I/Q gain imbalance in the signal affects the I/Q origin offset measurement. The measurement returns this result for GSM/EDGE/EGPRS.
maximumIQOriginOffset  Double
Upon return, contains the maximum of I/Q origin offset values measured over all acquisition time slots. This value is expressed in dB. Presence of I/Q gain imbalance in the signal affects the I/Q origin offset measurement. The measurement returns this result for GSM/EDGE/EGPRS.

Return Value

Int32
Returns the status code of this method. The status code either indicates success or describes a warning condition.

See Also

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