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Agilent Technologies E8285A manual 2II, RF Generator Functional Block Diagram

Contents

Reference Guide Copyright License under the clause at Dfars 52.227-7013 APR Herstellerbescheinigung Manufacturer’s Declaration General Safety Considerations for this Instrument Product Markings E8285A Cdma Mobile Station Test Set Duration of Warranty 1 year \agilent\e8285\REFGUIDE\MANUAL\frntmt.fb Declaration of Conformity Agilent Technologies E8285A Support Contacts Regional Sales and Service Offices Technologies E8285A TestingTesting and for analog testing This Book Documentation Map Instrument Basic User’s Handbook E2083-90000 Specifications 5968-8839E Contents 101 100102 108 104105 106 148 144 Cmax Dsat ESN Contents MS FER Rand Randu SID MSB System ID 418 System Type Call Control Contents Keys are listed in alphabetical order Description of Keys Agilent Technologies E8285A Front Panel This sets the Test Set’s Gpib address to KeysAddress Answer Programming Average AssignAverage See Also Output 714MEASAFRDISTNAVERSTAT on Call/Page CancelEEX Hold Ibasic resetEnd/Release Enter This queries the increment value for the RF Gen Freq field Increment ÷10, Increment set, IncrementProgramming Increment set Output 714RFGFREQINCRMODE LOG Increment value from 10 MHz to 1 MHz FrequencyProgramming Increment÷10 Programming Increment ×10 K1 K5, & K1’- K3’Cannot be changed Programming Local Puts the device at address 14 in local modeLocal Low limit, High limit Output 714MEASAFRDISTNHLIMSTAT? Used to display the high and low measurement limit values Analyzer FM deviation measurementDeviation measurement To Detect If a Measurement Limit Has Been Exceeded. Use HLIMitEXCeeded? and LLIMitEXCeeded? commands to detect if aYES Viation measurement have been exceeded This resets all of the active measurements in the Test Set Meas resetProgramming Meas reset Programming Meter MeterTo Turn the Meter on and OFF To Set the Number of Intervals on the Meter To Query the State of the MeterTo Query the Number of Intervals on the Meter To Set the Meter High End and Low End Points Endpoint to 10 watts for the TX power measurementMeter for the TX power measurement Graph meter high endpoint and low endpoint To Set the Meter High End and Low End Point Display Units Graph meter for the TX power measurement to dBmTo Query the Meter High End and Low End Point Display Units On/Off PowerPreset No Ratio W Recall This recalls the instrument state saved in the file SETUP1See Also Print Configure Screen on Print Programming Ref set Ref set Set a measurement reference point Commands to query a measurement reference point Measurement to dBm Save This saves the instrument state to a file named SETUP1Register Release Shift To 9, decimal point ., +/-, and a to F Yes On/Off E8285A User’s Guide Symbol KeysBackspace Down-Arrow, Up-Arrow Units-of-Measure Keys Front Panel Knobs Miscellaneous HardwareCursor Control Knob Key Name Screen Displayed Gpib Example Programmable Front-Panel Keys for Screens Non-Programmable Front-Panel Keys and Functions Data Functions Keys Guidelines for Using Measurement Data Functions Guidelines for Using Numeric Entry Field Data Functions User Keys Connectors are listed in alphabetical order Description of Connectors Agilent Technologies E8285A Rear Panel Description of Connectors Antenna ConnectorsOperating Considerations Audio in LOW, High See Also Scope To field description, on Audio output is used to output signals from AF Generators 1Audio OUT AUD Monitor Output Cell SITE/TRIGGERS Composite Video Cdma Clock MUX Output Even SEC Input Duplex OUTSee Also Cdma Clock MUX Output field description, on Gpib EXT REF InputSee Also Gpib Adrs field description, on Modulation Input Pin assignments for this connector are as followsPaging Channel Logging DCS2 Protocol Serial Parallel Port SA Trig Output RF IN/OUT Serial Port Serial Port 16X Chip Output Traffic Channel Logging DCS1See Also Cell SITE/TRIGGERS on See Also EXT REF Input on MHz Output These screens are listed in alphabetical order Description of Screens Adjacent Channel Power Screen Adjacent Channel Power Screen How the Test Set Measures Adjacent Channel Power ACP AF Analyzer Screen AF Analyzer Block Diagram onAF Analyzer Screen AF Analyzer Functional Block Diagram AF Analyzer Block Diagram Call Control Screen Call Control Screens Analog Meas Screen Call Control Screens Analog Meas How To Program The Analog Meas Screen Requirements for Using The Analog Meas Screen Authentication Screen Call Control Screens Authentication Call BIT Screen Call Control Screens Call BIT General Syntax Using the Call BIT Screen Example of Querying a Single Field Call BIT Screen Signaling Message NamesExample Printout General Syntax’ Printed Test Set Response MessageExample of Modifying Multiple Fields With One Output Call Configure Screen Call Control Screens Call Configure Call Data Screen Call Control Screens Call Data Messages which can be viewed are Aword Reading the Call Data Screen Message Fields Querying Multiple Fields With Single OUTPUT/ENTER Querying a Single Field Example of Querying a Single Field Cdma Authentication Screen Cdma Authentication Screen Cdma Call Control Screen Cdma Call Control Screen Cdma Cell Site Configuration Screen Cdma Cell Site Configuration Screen Cdma Cellular Mobile Receiver Test Screen Cdma Cellular Mobile Receiver Block Diagram onCdma Cellular Mobile Receiver Test Screen OUT Cdma Cellular Mobile Receiver Block Diagram Cdma Cellular Mobile Transmitter Test Screen Cdma Cellular Mobile Transmitter Test Screen Cdma Gated Power Screen Cdma Gated Power Screen Cdma Generator Control Screen Cdma Generator Control Block Diagram onCdma Generator Control Screen Lator Cdma Generator Control Block Diagram Cdma Mobile Reported FER Screen Cdma Mobile Reported FER Screen Cdma Mobile Reported Pilot Strength Screen Cdma Mobile Reported Pilot Strength Screen Cdma Open Loop Time Response Order Screen Cdma Open Loop Time Response Screen Cdma Reverse Channel Spectrum Screen Cdma Reverse Channel Spectrum Screen Cdma Short Message Service Screen Cdma Short Message Service Screen Cdma Swept Power Measurement Screen Cdma Swept Power Measurement Screen Cdma Transmitter Power Range Screen Cdma Transmitter Power Range Test Screen Configure Screen Configure Screen Duplex Test Screen Duplex Test Block Diagram onDuplex Test Screen Duplex Test Functional Block Diagram Duplex Test Block Diagram Help Screens I/O Configure Screen Message Screen Oscilloscope Screen and Menus Oscilloscope Screens Using the Scope To Field Oscilloscope Input IndicatorSelecting the Oscilloscope’s Input Printer Configurations Screen Print Configure Screen RF Analyzer Screen RF Analyzer Block Diagram onRF Analyzer Screen RF Analyzer Functional Block diagram RF Analyzer Block Diagram RF Generator Screen RF Generator Block Diagram onRF Generator Screen 2II RF Generator Functional Block Diagram RX Test Screen RX Test Block Diagram onRX Test Screen RX Test Fields and Their Functions RX Test Block Diagram Select Service from the To Screen menu Service Screen Spectrum Analyzer Screen and Menus Menus are accessed using the Controls fieldTo access the functions without having to change menus Spectrum Analyzer Screens Setting Resolution Bandwidth and Sweep Rate Using the Spectrum AnalyzerAutomatic Calibration Description of the Tests Subsystem Tests ScreensTests Main Menu Screen Tests Main Menu Or SET UP Test SET lists This screen displays the channel frequencies to be tested Tests Channel InformationTests Channel Information Screen Tests Test Parameters Screen Tests Test Parameters Tests Order of Tests Screen Tests Order of Tests Tests Pass/Fail Limits Screen Tests Pass/Fail Limits Tests Save/Delete Procedure Screen Tests Save/Delete Procedure Tests Execution Conditions Screen Tests Executions Conditions Tests External Devices Screen Tests External Devices Tests Printer Setup screen determines how tests are run Tests Printer SetupTests Printer Setup Screen Tests Ibasic Controller Screen Tests Ibasic Controller TX Test Screen TX Test Block Diagram onTX Test Screen TX Test Functional Block Diagram TX Test Block Diagram 146 Field descriptions are listed in alphabetical order Description of Fields Abort Print Access annunciatorScreens Where Field is Present Fields Acc Prb Pwr Avg PowerSelects the Access Probe Power measurement Acc Prb Pwr 150 AC Level Access Probe annunciator Active Base station is not active Active annunciatorACP Meas Turned on Tests External Devices Add IntcptAddr Enters 8 in the Add Intcpt field AF Cnt Gate AF Anl AF Freq AFGen1 Lvl AFGen1 Freq AFGen2 Freq AFGen1 ToThis field has two fields AFGen2 To Entering an Akey Directly into the Test Set AKeyGenerating a New Akey Enters a 1 preceded by 19 0’s in the A-Key field Key Digits Sets the Alert parameter to On AlertAll Chans? This field sets the Alert parameter in SMS messages Selects All Bands in the Alt Pwr Ms Cal Bands field Alt Pwr Ms Cal Bands Queries the Cdma amplitude error measurement result Ampl ErrorAM Depth Amplitude See Also Atten Hold on Screens Where Field is Present Sets the trigger amplitude Amplitude Cdma Swept Power MeasurementAnswer Mode Selects manual mode Triggers all active measurements Sets the remote operation trigger mode to SingleAntenna Arm Disarm field description, on Screens Where Field is Present Queries the Cdma gated power attack timeAttack Time Atten Hold This field sets the Audio in LO connector’s stateAudio In Lo Authen Turns Authentication OnAuthentication Tests, E8285A Application Guide Audio Out Authen Data Clear Authentication Data TableClears the Authentication Data Table Queries the Cdma Authentication Data Table Data Position Numeric Value Reading the Authentication Data Table over Gpib 173 END Select Programming Example for Authentication Data Table 175 Auto/Norm AuthentThis field specifies how the trigger level is set Auto Zero Autostart Test Procedure on Power-UpTests Execution Conditions Operating Considerations for the Average Power Measurement Avg PowerAverages Queries the average power measurement Selects the average power measurementZeroes the average power measurement See Also Chan Power on Sets the Awgn generator’s level to −75 dBm Awgn Sets the Bandclass parameter to Band ClassIf Bandclass 1 or 4 is selected Base Freq User Defined Base Frequency is calculated using the following formula Beeper Base IDParameters Message from the Test Set BER Thresh Burst Time Queries the Cdma gated power burst time Range of Values By # errorsThis field is coupled to the Span field’s setting BW= Called Number By # frames Limits call progress to the paging channel This field is used for measuring access probe power levelsCalling Name Call Limit 360 Call StatusCdma Status Register Bit Definitions Registering annunciator on Carrier Ref CarrierQueries the carrier feedthrough measurement result Center Freq Analog CC Order Sets the center frequency to 850 MHz Selects n up power control stepsCenter Freq Cdma Change Chan is divided into two fields Chan Sets the Channel field to Channel Cdma to Analog or Interband Handoffs Channel BW Selects Channel Power measurements Chan PowerQueries the channel power measurement Operating Considerations for the Channel Power Measurement Chan Power Meas IntrvlSets the measurement interval to 1 ms Check Chan StdTests Pass/Fail Limits Register Cdma field on Timer Reg field onCheck Digits MS Database field on For Ntacs systems, the choices are Ch LocSyntax and an example for Ntacs systems are as follows Chan Space User Defined Ch Offset Closed Loop Pwr Cntl This field sets the power control modeSelects Open Loop power control mode Eventually dropped. See Drop Timer on Tests Ibasic Controller Clr ScrCmax This field is used to clear the Ibasic controller screen Cnfg External Devices CCHannel command is used to control this fieldCurrent control channel setting Cntl Chan Sets the base station’s country code to Test Save/Delete ProcedureCntry Code Code Location Confidence This field sets the confidence coefficient for FER testingSets a confidence coefficient of 95% Range of values floating point number 80 through Connect annunciator Swered When a call is terminated, this annunciator will go outConnected annunciator Continue Cont/Single Controls Cdma Gated PowerControls Cdma Reverse Channel Spectrum Select among the following Controls Cdma Swept Power MeasurementDefault selection is Main Controls Open Loop Time Response Controls Spectrum Analyzer Controls OscilloscopeCurrent Data Length Data ModeSets the User Data field data format to hexadecimal Selects full-rate data transmission Data Rate Data Spec How to read the contents of the individual messages Selects Prbs Data Type DC Current Date DC Level Tests Channel Information De-Emp GainDe-Emphasis Delete Ch Tests Order of Tests, External Devices Delet InsDelet Stp Description Detector Types Detector Display DisarmStops a measurement in progress Setting the Display field to Data Call Control Screen Received Data Fields Information Strings Available From The Received Data Fields Information Strings Available from Reverse Voice Channel Information Strings Available When a Decoding Error Occurs Setting the Display Field to Meas Call Control Screen with Meas Selected Call Control Screen with NMeas Selected Displays interim FER results Enables displays of user messagesDisplay Interim Results Display User Mssgs Display Word On how to read the contents of the individual messages Nrvc Ord Display Word Choices AuthWORDBSChalOrd MRI Ord UniqChCon RVCBSChalRVC Ord RVCOrdCon 235 Distn Enters 4 in the Drop Intcpt field Drop IntcptSee Also TDrop field description, on This field turns the call drop timer on or off Drop TimerTurns off the call drop timer Dsat Sets the Dsat field to 0 2556CB DSAT/DST hex Dsat Meas Call Control when Namps is selected in the System Type field Duplicate User Data Duplex OutEnters 2 times in the Duplicate Entered Data field Queries the Eb/Nt field Echo DelayDelays your voice 2 seconds Eb/Nt Selects the Octet format Encoding Enter Hex Data Enter Ascii Data Errors Enter Procedure FilenameTests Save/Delete Procedure Queries the FER errors measurement result Errors Counted Enables escape mode Esc ModeESN dec ESN ESN hex Executes the handoff Execute Handoff Exec Execution Cond Execute Closed Loop Power Control ChangeExpected Queries the expected PN Offset value for Sector a Expected PN Offset Example Expected StrengthQueries the expected pilot strength value for Sector a Queries the Expected TAdd value calculated by the Test Set Expected TAdd Queries the Expected TDrop value calculated by the Test Set Expected TDrop Ext Load R External Disk Specification STD-008 Kor PCS Ext NghbField on Queries the currently displayed FER measurement result FER FF at End Clears the Errors Reported and Frames Reported fieldsFER Report Clear FER Spec Filter FF at Start Flow Cntl FirmwareFM Coupling FM Deviation Call Control FM Deviation Frame Clock Frames Counted FramesQueries the FER frames measurement result Freq Channel Information Freq Error CdmaSelects frequency error from the list of choices Queries the Cdma frequency error measurement result Displays the Freq Error measurement field Freq Error AnalogCall Control when Meas is selected in the Display field Frequency Analog Gain Cntl Gate TimeSee Also Num of Bits field on Grid Gen-AnlTurns off the display grid This field is used to initiate a handoff Grid Cdma Swept Power MeasurementHandoff Sets the grid to on or off Executes a Cdma to Analog handoff Hard Handoff annunciator Ibasic Echo Gpib AdrsIbasic Ibasic Cntrl Queries the Ideal Mobile Power field Ideal Mobile Power Sets Initpwr to Init PowerIf Filter If Unit-Under-Test Fails Input Att Requires you to set the needed amount of input attenuation Ator hold modeInput Atten Information Input Gain Input Port Insrt Ins Insert Ch Inst Echo Insrt StpInst# Keep InternalThis field selects the trigger source Queries the length of the current SMS message length LengthProgramming Example for Keep Field Lower and Upper ACP RatioLevel Level divLibrary Lines/Page Lower Limit Lvl Cdma Gated PowerQueries the level at the current marker position Main Menu Lvl Open Loop Time Response Queries the amplitude at the marker’s present position Marker Lvl Cdma Swept Power MeasurementMarker Freq Queries the frequency at the marker’s present position Marker Lvl Queries the difference in frequency between the two markers Marker Norm/DeltaMarker Time Selects Delta in this field Positions the marker at 0 microseconds Marker Time Cdma Gated PowerMarker Pos Cdma Reverse Channel Spectrum Positions the marker in the center of the display Position is settable in units of milliseconds Marker Time Cdma Swept Power MeasurementMarker Time Open Loop Time Response Positions the marker at 0 milliseconds Marker To Sets the maximum number of frames for FER measurements to Mask TypeMax Frames This field sets the maximum frame count for each FER test Executes a Min/Max Power measurement Max PowerQueries the Max Power measurement value Sets the cycle to 2.56 seconds Max Req Seq, Max Rsp SeqMax Slot Cycle Index Sets both parameters to Meas Cntl Message Data ModeSets the measurement mode to single Cdma Gated Power unlabeled Queries the Min Power measurement value Min PowerMic Pre-Emp Min/Max Pwr Causes the Test Set to execute a Min/Max Power measurement Identifies the mobile station parameter MUX1REV1 Mobile ParmSets the mobile station’s MUX1REV1 parameter value to Mobile Power Mode Mode Mobile PwrModel Mod In To Syntax for MS Id Field MS Id MS Ack Cause Code 304 MS Ack Rcvd annunciator Screens Where Annunciator is Present MS Database Protocol field on MS FER MS ID MS FER Report IntervalSets the mobile station’s FER report interval to 160 frames Enters the mobile station’s phone number Enters the mobile station’s MIN numberOperating Considerations for MS ID Field Netwrk Code Network IDSets the base station’s network code to Nghb Fq Ch Sets Nompwrext to Nom PowerNom Pwr Ext Sets Nompwr to No Pk/Avg Normalize Notch Gain Notch Freq See Also Gate Time field on Notch CouplNum of Bits Buffer has a maximum capacity Sets Numstep to Num PagesNum Step Sets the Num Pages field to two Sets the Ocns Walsh code to Ocns Sector a Power Offset Freq Ocns Sector B PowerSets the Walsh code for the Ocns to Open Loop Time Response Execute Executes a time response to open loop power control testOptions Order Enters 1111111 in the Orig Addr field Orig Addr Holds the output attenuators Tests Printer Setup, Execution ConditionsOutput Atten Hold Output Heading This field selects the RF output port on the Test Set Tests Execution Conditions, Printer SetupOutput Port Output Results For Syntax Example Output Results To Rate AnnunciatorSets the Page Rate field to full Specifies the messages to be sent Send Sent annunciator Paging Sector a PowerSets Sector a pilot power to −16 dB See Also Call/Page on Screens Where Field is Present Sets Pamsz to Pam SizeParameter Parm Test Parameters Pass Word Parity Phone Num PcmciaThis field provides re-formatting of Pcmcia cards Selects phase error from the list of choices Phs ErrorQueries the phase error measurement result Sets Sector B pilot power to −7 dB Pilot Sector a PowerPilot Sector B Power Sets Sector a pilot power to −7 dB Sets the Pilot Inc field to Pilot Inc Pilot Meas Clear Clears the contents of the Cdma Mobile Reporting tablePk Det To PN Offset Status States Decimal Pilot Strength Level is above Programming Example PN Offset Sector B Power PN Offset Sector a PowerSets the pilot PN offset index to Position Port/SweepThis control performs two functions Power Cntl Step Size Operating Considerations, Power Zero Power MeasRefer to the Chan Power field description, on Refer to the Avg Power field description, on Gpib Example Sets Pwrstep to Power StepThis field allows entry of the power increment Pwrstep Print All Printer Port Print Printer SetupPrint Data Destination Printer Address Sets the Priority parameter to Urgent Priority Sets the Privacy parameter to Restricted Procedure LibraryProc Save/Delete Procedure Privacy This field provides a choice of these protocol selections Setting up a Call chapter in the E8285A Application GuideProgram Protocol Sets the Pwr Level Vmac field to Enables or disables power down registrationPwr Dwn Reg Pwr Level Right-Hand Field Pwr LvlPwr Lvl field is divided into two fields Left-Hand Field Pwr Up Reg Randa RandQueries the Rand field Queries the Randssd field See Also SSD Update field on Screens Where Field is PresentRandb Randssd RANDSSD2 RANDSSD1 Randu RANDSSD3 Range Hold See Also Uniq Chall field on Screens Where Field is PresentQueries the Randu field Rcv Pace Receive pace field is used when receiving serial dataReceived Sets the reference level high value Ref Level Cdma Swept Power MeasurementRef Level Sets the reference level to 0 dBm Reg Period Sets the timer-based registration period to Register Cdma Register AnalogCauses the mobile to register Register annunciator MS ID field description, on Screens Where Field is Present Registering annunciator Release Time Queries the Cdma gated power release time Res BW Reset Selects the RF analyzer frequency RF Anl Freq Cdma Swept Power MeasurementSpectrum Analyzer When the Controls field is set to RF Gen RF Channel analog Selects channel RF Channel Cdma RF Chan Std Range MHz Numbers E8285A Generate E8285A Receive Mobile Test Channel RF Display RF Cnt Gate RF Gen Volts RF Gen FreqSets the RF generator to 815 MHz RF Level Offset RF Out RF Offset Queries the RF Power level RF PowerRgstr NID Rssi Thresh Rgstr SID RX/TX Cntl Sets the SAT field to 6000 Hz RunRun Test SAT SAT field is divided into two fields TX Test Analog SAT Deviation Sat Tol SCM Save/Recall Scope To Sc PrioritySets the search priority level in the custom neighbor list Sctr a Pwr Sets Sector A’s power to −100 dBmTurns on Sector a Sctr B Pwr Select Procedure Filename Tests Save/Delete Procedure Tests Main Menu Select Procedure LocationSend Msg Send Word Send Msg Cdma Swept Power MeasurementSTD-008 Kor PCS TSB-74 Serial Baud SensitivityThis area performs two functions Serial No Serial9This field displays the serial number of the Test Set Set Message Choices Set MessageBSChalCon FVC V Mes FVCBSConFVC O Mes FVCUniqCh MSMessOrd MS InVCh RandChalB RandChalA Call Bit Set Message Field Descriptions UniqChOrd 391 OHD This field displays the overhead message type 393 Seqn Order of Tests Settling SID MSB Sinad Slope Cdma Swept Power MeasurementSets the trigger slope SMS In Progress annunciator SMS Sent annunciatorSngl Step SNR Operation SNR This field controls softer handoffs Softer HandoffBegins a softer handoff This field is used to enter the parameter Softslope Softer Handoff annunciatorSoft Slope Queries the Cdma condition register Speaker ALC SpanSets the frequency span to 3 MHz Spec Pass/Fail Limits Speaker VolSpec# Squelch Sets search-window a to Srch Win a Sets search-window N to Srch Win N SSDA=0 annunciator Srch Win RSets search-window R to Ssda Ssdb Initiates the SSD Update procedure SSD UpdateAuthentication Tests, E8285A Application Guide Status Mobile Reported Pilot Strength SSD Update annunciator Programming example for Status Field Operating Considerations for Status Field Status Cdma Swept Power Measurement Zzzz new Status Cdma AuthenticationQueries for the arming status of the measurement Steps 251 Screens Where Field is PresentStep Size Stop Length Step# Programming Example for Strength Field Strength Arms the measurement Swept Pwr Cdma Swept Power MeasurementSync Sector a Power This field allows for arming the swept power measurement System Type Call Control System ID System Type CDMA-to-CDMA or CDMA-to-Analog Handoff All instances, the default is AmpsSelects the Amps system type for a Cdma to analog handoff Sets Tcomp to Operating Considerations TAddTComp Sets Tadd to This field allows entry of the pilot drop threshold Tdrop TDropSets Tdrop to Sets Ttdrop to Handoff Drop Timer Expiration ValuesTTDrop Test Name Test Status Test Procedure Run Mode This field is duplicated on the Cdma Call Control screen This annunciator is lit when a FER test is in progressMeasured FER is displayed as 0.6% Max Frames annunciator Measured FER is displayed as 1.4%Failed annunciator Example Failed FER measurement TimeBase Time Configure Frequency Accuracy Definition IS-98 Time/divTime Offset Queries the Cdma time offset measurement result Time Offset Negative Timer Reg Queries the current Rho measurement result TM Test Mode RhoTM Rho Selects Traffic Rho as the current Rho measurement To Screen ConfigAnalog Clears the screen Trace Cdma Swept Power MeasurementTotal RAM This field clears the measurement from the display Sets the Walsh cover for Sector A’s traffic channel to Traffic Sector a PowerTraffic Sector B Power Sets Sector B’s pilot power to −16 dB Selects service option Traffic Data Mode Transmitting annunciator Traffic Rho Trig-Delay Tune Freq Transmitter Power measures RF power at the RF IN/OUT port TX Power 438 TX Pwr Meas TX Pwr Zero Type Initiates a Unique Challenge-Response procedureUniq Chall Units Uniq Chall annunciator Enters the Ascii string Call Home in the User Data field Selects Ascii data entry mode for the User Data fieldUpper Limit User Data Ascii or Hex VC Order Vert Offset Vert/div Sets Sector B’s traffic channel to Walsh code Walsh Sector aWalsh Sector B Sets Sector A’s traffic channel to Walsh code Xmt Pace Transmit pace field is used when transmitting serial data 448 Numerics Index 450 Index 451 452 Index 453 454 Index 455 456 Index 457 458 Index 459 460 Index 461 462 Index 463 464