标签: airforce

Tool_AirforcesystemCalibrationRevisedAirforceCalibrationNovember1,2002MainTopicCalibrationIntroductionCalibrationSetupCalibrationStagesCCXOcalibrationReceiverCalibrationRxgainstagecalibrationTransmitterCalibrationTxIQGain&PhaseImbalancecalibrationTxIQDCOffsetTxpowerTxRampPedestalBattery&Charger2002-11-1ConexantGSMTraining-Calibration2CalibrationIntroductionWhat’stheCalibration?UsingS/WtoCompensatetheH/WdifferenceautomaticallyS/WCompensation:Outputdatastoredinnon-volatilememory(FlashorEeprom)andutilizedbyLayer1codeH/Wdifference:ComponentdifferenceandproductionprocessWhyneedtocalibrate?Ensureuniformperformancefromeachhandset.MitigatetolerancedifferencesbetweendifferentRFcomponents.CompliancewithGSMrequirements200……