HP 83236B S Interface manual Check Even-Second Clock

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Chapter 2, Making Measurements

Check Even-Second Clock

Check Even-Second Clock

Overview	Most CDMA transmitter tests require an Even-Second clock signal from the base
	station in order to correlate the measurement. If you are receiving an error stating
	Cannot correlate to input signal. Check setup. , you may have a
	problem with your Even-Second clock signal. This Software utility allows you to
	check for a valid clock signal from the base station.

EVEN SECOND/

SYNC IN

H

Even-Second

Clock

(Rear Panel)

SYNTH

REF IN

Time Base

H

Figure 24

NOTE:	The test procedures outlined in this section require that you have already configured the
	Test System as outlined in chapter 1, "Getting Started".

Requirements	• This test requires that you temporarily connect the Even-Second clock signal to the
	TRIGGER / QUALIFIER IN port of the Cellular Adapter.

NOTE:	Be sure to return the Even-Second clock signal to the EVEN SECOND / SYNC IN port of
	the Cellular Adapter when finished. The Software will prompt you to make this change.

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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 Turning On Using AutostartAutostart Feature 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 ResultsMeasurements Rho MeasurementsCode Domain 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