Agilent Technologies 8922 P manual Fast BER Screen, Fast BER screen

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Figure 4-3

NOTE

Screens

Fast BER Screen

Fast BER Screen

One extra field, labelled Loopback, appears in the Fast Bit Error screen, when the HP/Agilent 8922 is in 2x1 mode.

Fast BER screen

The Loopback field is a toggle field and allows the choice of either master or slave. This instructs the mobile to either loopback the master channel on the downlink to the master uplink or loopback the slave downlink to the master uplink.

Note that toggling the Loopback field does not immediately instruct the mobile to perform a loopback using the contents. Entering the screen sends the command to the mobile to close the loop. It is therefore necessary to enter the screen with this field set to loopback the downlink channel of choice.

When performing Fast BER on the slave channel, it is necessary to start the measurement on the master unit because the master unit controls all the signalling with the mobile). As a result, this also starts a Fast BER measurement on the master unit which should be ignored.

Chapter 4

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Contents HP/Agilent 8922 GSM Hscsd Test System Option #K09 Warranty Limitation of Remedies and Liability Assistance Statement of Compliance Manufacturer’s Declaration Sound EmissionProhibited Earthing ground, incorporated in the power cord. The mainsInstrument dangerous. Intentional interruption is Safety Symbols Safety SymbolsISM 1-A User’s Guide Abbreviations OverviewContents Remote operation Returning equipment for repair Upgrading the HOP Controller ROM and Firmware Understanding the HP/Agilent HP/Agilent 8922 GSM Hscsd Test System, option #K09 Getting an overview of the HP/Agilent GSM Hscsd Test SystemChapter Features Setting up the HP/Agilent Before you start Checking the HP/Agilent 8922 Requirements for Hscsd Front panel connections Making the front panel connectionsStep Making the rear panel connectionsRear panel connections Inserting the keycard into the HP/Agilent Enabling the Hscsd functionalityTests screen Config screen Calibrating the overall system Manual operation Configuring the system Message Frame reset sent appears in the top left-hand corner Establishing a call Measuring BER Making measurementsChoosing which timeslot to measure Hscsd control screen Changing power levels, timeslot and channelsEnding a call Ending a call Screens Instrument type Config screenChapter Slave address Master downlink amplitude Hscsd screenMaster channel Slave offsetSelect ‘Master’ to measure before signalling mobile Slave timeslot Master timeslotCall Type Measure Data rateMaster Tx level Master input level Slave Tx level Master modeSlave input level Slave control To Screen menu Peak power displayMobile reports Fast BER screen Fast BER ScreenLoopback Remote operation Introduction Configure Instrument Type comand syntax Configure Subsystem Gpib CommandsCONFigureINSTrumentTYPE DISPlaySCReen Hscsd Display Subsystem Gpib CommandsDisplay Screen command syntax Hscsd Subsystem Gpib Commands Hscsd command syntax master unit SYNC? TCH Hscsd command syntax slave unitHSCSdMASTerTCHARFCn HSCSdMASTerSTATusTCHTSLot HSCSdMASTerDOWNlinkAMPLitude Command 0ptionsHSCSdMASTerTCHTLEVel HSCSdMASTerUPLinkAMPLitude HSCSdMASTerUPLinkAMPLitudeCONTrol HSCSDMASTerCALLTYPE HSCSDMASTerCALLRATE HSCSdSLAVeSTATusSYNC HSCSdSLAVeSTATusTCHTSLot? HSCSdSLAVeDOWNlinkAMPLitudeOFFSet HSCSdSLAVeTCHTLEVel HSCSdSLAVeUPLinkAMPLitude HSCSdSLAVeUPLinkAMPLitudeCONTrol Configuring the system Remote operating proceduresMaking measurements Establishing a callChanging channels, timeslot and power levels Ending a call Clear Screen Example code showing a dual-band handover from E-GSM to DCSPause Example code showing a dual-band handover from E-GSM to DCS Returning equipment for repair Return Procedure Chapter Sales and Service Offices Canada Sales and Service Offices Upgrading the HOP Controller ROM and Firmware ROM Upgrading the Hop Controller ROMSide View Figure A-4 Removing the A33 U62 HOP Controller ROM Figure A-3 Removing the A33 Hop Controller BoardUpgrading the Hop Controller ROM Upgrading the firmware