HP 83236B S Interface manual Correlating in , Troubleshooting, on

Page 47

Chapter 2, Making Measurements

Check Even-Second Clock

Steps

1

You can start with the connections shown in figure 24. You will get prompts from the

 

 

Software to change the Even-Second clock connection when needed.

 

2

In the main menu, scroll to and select Check Even Second Clock.

 

3

You will have to make a change to the connections, as shown on the display. Switch

 

 

the Even-Second clock signal from the EVEN SECOND/SYNC IN port to the

 

 

TRIGGER/QUALIFIER IN port on the Cellular Adapter. Once you have made the

 

 

connection, press the Continue (k2) key.

 

4

The Software will begin checking for a valid clock signal. This will take a few seconds.

 

 

When it has found a valid signal, you will see the message EVEN SECOND CLOCK

 

 

FOUND. If the Software finds no valid clock, you will see the message NO CLOCK

 

 

FOUND. In that case, see the documentation on your base station to verify that you are

 

 

connecting to the correct port and to see if any switches must be set to enable the clock

 

 

signal.

 

5

To go on, press the Continue (k2) key.

 

6

Reconnect the Even-Second clock signal connection to the EVEN SECOND/SYNC port

 

 

on the Cellular Adapter. After you have done this, press the Continue (k2) key to

 

 

return to the main menu.

Notes

See the section on the clock timing signal in "CDMA Measurement not

 

Correlating" in chapter 4, "Troubleshooting, on page 69."

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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 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 If You Had ProblemsPerform Cdma Tests Perform Cdma Tests Making Measurements Making Measurements Transmitter Measurements Receiver Measurements Other OverviewRequirements Average PowerOverview 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 Reference ConfigurationInformation 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 Turning Off Using AutostartAutostart Feature Turning OnConnections 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 PowerReceiver Tests Rho MeasurementsCode Domain MeasurementsSensitivity 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