HP 83236B S Interface manual Cdma Base Station

Page 61

Chapter 3, Operating Overview

An Alternative Test-System-to-Base-Station Timebase Configuration

CDMA

TIMEBASE IN

CDMA Base Station

Even-Second

Clock

								EVEN SECOND/
								SYNC IN
H	8 3 2 0 5 A
H	C D M A C E L L U L A R		A D		PWR REF
					UNLOCK
RF IN /OUT	RF IN/OUT	TRIGGER/	DATA	EVEN SEC-	CDMA	DIAGNOSTIC	1. 2288 MHz	19. 6608 MHz
TO	MAX.PWR	QUALIFIER	IN	OND/	TIMEBASE	MONIT OR	OUT	OUT
		IN		SYNC IN				16 X CHIP
H	8 3 2 3 6 B			TEST SET
H	P C S I N T E R F A C E						1.8-2.0 GHz UUT
							1.8-2.0 GHz UUT
POWER			F	DUPLEX OUT T O ANT IN			RF IN/OUT	RF OUT only
			F	DUPLEX OUT T O ANT IN			RF IN/OUT	RF OUT only
OFF	ON

19.6608 MHz Clock (or other reference)

SYNTH REF IN

SYNTH REF IN10 MHz OUT

CONTROL I/O

CDMA CLOCK OUTPUTS

114.3 MHz IF IN I BASEBAND OUT

CW	IQ	AUX	10 MHz
		DSP IN
RF IN	RF OUT		REF OUT

Q BASEBAND OUT

SERIAL PORT

OPTIONAL MOD OUT

HP - IB

REF IN

10 MHz REF OUTPUT (A BNC “tee” is required to make these connections)

Figure 25

61

Image 61

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 You must supply Required EquipmentSynth REF Load and Run the CDMA/PCS BS Test Software Tests Main Menu screen CDMA/PCS Test Software main menu features Select Configuration Information Menu Configure the SoftwareScroll to and select your band of interest User k1 Perform Cdma Tests ProblemsIf You Had Perform Cdma Tests Making Measurements Making Measurements Transmitter Measurements Receiver Measurements Other OverviewOverview Average PowerRequirements Information Menu under TX Measurement Path Loss StepsModulation 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 Analyzer Transmit SpectrumSteps 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 Receiver Performance in Additive Noise Error Rate FER is measured at each Eb/No levelEb/No Level Search for PN Offset PN Offset not Found Check Even-Second Clock Check for a valid clock signal from the base stationCorrelating in , Troubleshooting, on Check Even-Second Clock Operating Overview Information ConfigurationReference To select a new PCS Band Selecting a PCS BandChannel plans for PCS Band selections You must know the following loss values Compensating for TX and RX Measurement Path LossBeep Saving Configuration Information to MemoryRequirements Steps Loading Configuration Information from MemoryPurging Configuration Information from Memory Autostart Feature Using AutostartTurning On Turning OffConnections Viewing Instrument ConnectionsSetting the Test System Beep To Memory on Cdma Base Station Operating Overview Troubleshooting Troubleshooting Memory Overflow Errors Errors When Loading and Running the SoftwareTest System Configuration Errors at Runtime Compensation not performed. Check Duplex OUT cable. Retry? Errors When Loading and Running the Software Cdma Measurement not Correlating Errors While Attempting MeasurementsErrors While Attempting Measurements Incorrect Base Station Channel entry Frame Error Rate Receiver MeasurementsErrors While Attempting Measurements Questionable Measurement Results Average PowerCode Domain Rho MeasurementsMeasurements 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