HP 83236B S Interface manual Troubleshooting

Page 64

Chapter 4, Troubleshooting

Overview

Overview

Use table 2 to locate your problem or a received error message, then refer to the page number shown.

		Problem or error message	Refer to:

		Memory overflow errors	"Memory Overflow Errors" on page 65
	software
	software	Message: HP-IB Command not accepted. Option not	"Test System Configuration Errors at
		Message: HP-IB Command not accepted. Option not	"Test System Configuration Errors at
		installed.	Runtime" on page 66
	the
	the	Message: Verify PCS Interface is connected and on. Retry?
		Message: Verify PCS Interface is connected and on. Retry?
	running
	running	Message: Compensation not performed. Check DUPLEX	"Other Test System Configuration
		Message: Compensation not performed. Check DUPLEX	"Other Test System Configuration
		OUT cable. Retry?	Errors" on page 67
	and
	and	Configuration Information is not updated	"Configuration Information is Not
		Configuration Information is not updated	"Configuration Information is Not
	Loading		Updated as Saved" on page 67

		The menu screens you see do not match those in this book	Match the Screens that You See" on page
		The menu screens you see do not match those in this book	"Menu Screens in this Book do not
			68

	Measurements	Message: Cannot correlate to input signal. Check setup.	"CDMA Measurement not Correlating"
	Measurements		on page 69
			on page 69

		Unable to read frame error rate (FER) or unexpectedly high	"Frame Error Rate (Receiver
		readings (receiver tests)	Measurements)" on page 71

	Results	Average power	"Average Power" on page 73

		Modulation quality (rho)	"Rho Measurements" on page 74
		Modulation quality (rho)	"Rho Measurements" on page 74
	MeasurementQuestionable
	MeasurementQuestionable	Code domain power, timing, or phase	"Code Domain Measurements" on page
		Code domain power, timing, or phase	"Code Domain Measurements" on page
			74

		Receiver tests	"Receiver Tests" on page 74

Table 2

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Image 64

Contents CDMA/PCS Base Station Test Software, User’s Guide Restricted Operating Overview Conventions Used in this Book Contents Making Measurements Receiver Sensitivity Operating Overview Setting the Test System Beep Glossary Index Getting Started Introduction Required Equipment You must supplySynth REF Load and Run the CDMA/PCS BS Test Software Tests Main Menu screen CDMA/PCS Test Software main menu features Configure the Software Select Configuration Information MenuScroll to and select your band of interest User k1 Perform Cdma Tests ProblemsIf You Had Perform Cdma Tests Making Measurements Making Measurements Overview Transmitter Measurements Receiver Measurements OtherOverview Average PowerRequirements Steps Information Menu under TX Measurement Path LossModulation Quality Rho Measurement not Correlating in , Troubleshooting, on Code Domain Power Menu Code Domain Timing Details on the use of the Code Domain Analyzer screen Code Domain Phase Already selected Transmit Spectrum AnalyzerSteps Go to Spectrum Analyzer @ Present Chan Steps Go to Spectrum Analyzer & Enter Freq Transmit Spectrum Receiver Sensitivity Main menu, enter the Base Station Channel number Error Rate FER is measured at each Eb/No level Receiver Performance in Additive NoiseEb/No Level Search for PN Offset PN Offset not Found Check for a valid clock signal from the base station Check Even-Second ClockCorrelating in , Troubleshooting, on Check Even-Second Clock Operating Overview Information ConfigurationReference Selecting a PCS Band To select a new PCS BandChannel plans for PCS Band selections Compensating for TX and RX Measurement Path Loss You must know the following loss valuesSaving Configuration Information to Memory BeepLoading Configuration Information from Memory Requirements StepsPurging Configuration Information from Memory Using Autostart Autostart FeatureTurning On Turning OffViewing Instrument Connections ConnectionsSetting the Test System Beep To Memory on Cdma Base Station Operating Overview Troubleshooting Troubleshooting Errors When Loading and Running the Software Memory Overflow ErrorsTest System Configuration Errors at Runtime Compensation not performed. Check Duplex OUT cable. Retry? Errors When Loading and Running the Software Errors While Attempting Measurements Cdma Measurement not CorrelatingErrors While Attempting Measurements Frame Error Rate Receiver Measurements Incorrect Base Station Channel entryErrors While Attempting Measurements Average Power Questionable Measurement ResultsRho Measurements Code DomainMeasurements Receiver TestsSensitivity tests random data not selected for signal source Questionable Measurement Results Glossary Glossary Modulation Quality See Rho Glossary Glossary Glossary Index Index FER Index Oqpsk PCS Qpsk UCT Walsh chip