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Agilent Technologies 8935 series e6380a manual Squelch

Models: 8935 series e6380a

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Analog Measurements - Screens and Control Fields

Control Fields for Analog Measurements

Squelch

This setting determines the squelch operation when demodulating FM, AM, or SSB signals. Three settings are available:

•Pot uses the front-panel SQUELCH knob for squelch level adjustment.

•Open disables squelch operation.

•Fixed sets the squelch to a fixed level, disabling the front-panel SQUELCH knob control.

Operating Considerations

Most measurements are not displayed on the screen if the incoming signal falls below the squelch level (with the exception of TX Power). The measurements are replaced by four dashes (- - - -) to indicate they have been squelched.

Oscilloscope measurements are also disabled when the signal has been squelched.

Spectrum analyzer measurements are not affected by the squelch setting (although squelch still affects whether the demodulated signal can be heard while viewing the RF signal).

Trying to read a squelched measurement using GPIB will cause your program to halt until the squelch is either turned down, a measurement is made, or until a program time-out aborts the measurement.

Screens on which this field is displayed

RF ANALYZER

Chapter 6

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Agilent Technologies 8935 series e6380a manual Squelch

Contents

Revision F January Agilent Part Number E6380-90019Page Contents Overview of the Test Set’s Built-In Tools Cdma Measurements Screens and Control Fields Analog Measurements Screens and Control Fields Contents Contents Control Fields on the Configuration Screens 227 Configuration Screens and Control FieldsAMPS-TACS, NAMPS-NTACS Encoder and Decoder 253 Signaling Encoder and Decoder Screens and Control FieldsConnectors ConnectorsError Messages Accessories, Manuals, SupportGeneral Information Herstellerbescheinigung Manufacturers DeclarationSafety Considerations Adjustments described in the manual are performed with Connected to the earth terminal of the power sourceInstrument must be made inoperative and be secured against Any unintended operationProtective earthing ground incorporated in the power cord This product is a Safety Class I instrument provided with aMains plug shall only be inserted in a socket outlet Provided with a protective earth contact. Any interruptionConsumables Lifting and HandlingProduct Markings Certification Declaration of Conformity Like-new Defects in material and workmanship when properly installedIts programming instructions due to such defects Price upon prompt return of the productChapter Assistance Regional Sales and Service Office sPower Cables Power CablesStraight/90 8120-1692 Inches, mint gray Used in the following locations Peru Used in the following locations Switzerland Straight/90 8120-4754 Inches, dark gray JIS C 8303, 10090 /Straight 8120-1351 Inches, mint gray LineNeutral Straight/90 Used in the following locations System Cabinets 8120-4379 Inches, jade grayPower Cables Product Description Sinad SNR What is in This Manual DocumentationConventions Used in This Manual Which Document is Required? Document NavigationDocument Part Number Usage Trademark Acknowledgments Getting Started Before Connecting a Radio on Before Connecting a Radio Changing the Test Set’s Display Using the cursor-control Knob or Screen KeysTo change the measurement screen Changing the Control Fields Unit-of-Measure FieldTo change a unit-of-measure field To Change an underlined entry Underlined Entry FieldTo make a one-of-many choice One-of-Many FieldNumeric-Entry Fields Numeric-Entry FieldTo change a value Hexadecimal Values Decimal ValuesHow do I Verify that the Test Set is Operating Properly? Cdma Spectrum Operating Overview Operating Overview ADC Full Scale ADC FS Displaying Cdma MeasurementsMagnitude Error, Phase Error Selecting Code Domain Measurements DiagramTransmitter TXPower Frequency Error, FrequencyDisplaying Analog Measurements RF MeasurementsDisplaying AF Measurements Measurement AF Anl In SettingFM Deviation, AM Depth, AC Level SINAD, Distortion, SNR, AF Frequency, DC LevelDisplaying SINAD, Distortion, SNR, DC Level, or AF Frequency Displaying Measurement Results on a Meter Scale To display the meter scaleTo set the meter’s end points and scale intervals Operating Overview Calibrating the Channel Power Measurement Cdma Analyzer Calibrating the Channel Power Measurement Code Domain Calibrating the Adjacent Channel Power ACP Measurement Changing the Increment or Decrement Setting Using the Factor of 10 Increment/Decrement KeysSpecifying An Increment Value for the Arrow Keys or Knob Using Measurement Limit Indicators To reset or remove limitsTo set high and low limits To remove a limit To set a reference Setting a Measurement ReferenceAveraging Measurements To use measurement averagingHow the Test Set Averages Measurements To set an RF Offset Setting an RF Generator/Analyzer OffsetTo save an instrument setup Saving and Recalling Instrument SetupsTo recall an instrument setup Press RecallTo remove clear an individual save register Poweron SettingsTo clear all save registers Register NamesBase Settings Memory ConsiderationsInstrument Hardware Changes Using Pre-Defined User Keys Using User KeysTo assign local user keys Assigning and Releasing User KeysTo release local user keys To assign global user keysReplacing Batteries Overview of the Test Set’s Overview of theTest Set’s Built-In Tools Using the RF Tools Program Software Menu Screen Loading and Running RF ToolsTest Results/BTS Utility Setup Screens Test Results/BTS Utility SetupTo use a printer for data collection To use a laptop interface other than the BTS Laptop Utility Swept GainMeasurement Description Making the MeasurementSelecting the Swept Gain Measurement Test Level value to avoid damage to that device Level for the Duplex OUT level in dBm parameterPress k1 Begin Tst Example of a Swept Gain Plot Screen Discrete Frequency Insertion Loss SpecificationsPress k1 Proceed when you are finished with this screen. Particular testSecond display is enlarged for easier reading 10 Selecting the Swept Insertion Loss Measurement Swept Insertion Loss11 Swept Insertion Loss Setups Estimating Swept Insertion Loss Using a Single Connection Swept Return Loss Select Main Menu Swept Return Loss 13 Swept Return Loss Setups Power level. To avoid damage to the ANT in port, enter an14 Example of a Swept Return Loss Plot Screen Specifications Test Signal Can Cause Interference Cable FaultTime domain can be used to find the physical distances. Locations by viewing it in units of distanceSelect Main Menu Cable Fault Measurement Cable length, enter a value 1.5 times the estimated length Greatest accuracy is obtained when you enter a cable lengthToggles the selection between feet and meters K1 HELIAX, k3 RG, or k5 Custom17 Cable Fault Setups 18 Example of a Cable Fault Plot Screen Typical cable fault return loss measurements Cable Fault PerformanceReplot Data Files Select Main Menu 21 Transfer Stored Data Screen Transfer Stored Data22 SA Self Calibration OFF/ON Screen SA Spectrum Analyzer Self Calibration ON/OFFCatalog PC Memory Card 23 Catalog Memory Card Screen Selecting the Code Domain Analyzer’s Controls Menus Using the Code Domain Analyzer24 Code Domain Analyzer Menus IS-95 25 Code Domain Analyzer Menus IS-2000 Setting Resolution Bandwidth and Sweep Rate Using the Spectrum AnalyzerRelationship between Span, Resolution Bandwidth, and Sweep Automatic Calibration26 Spectrum Analyzer Controls Menus Selecting the Spectrum Analyzer’s Controls MenusUsing the Spectrum Analyzer’s Delta Markers Delta FrequencyDelta Level Reference Marker Ref Mrkr Level and Frequency Displaying the Spectrum Analyzer Mask Using the Spectrum Analyzer MaskDefining the Fixed Mask’s Limits Settings for mask in FigurePoint Point Level FrequencyDefining the Relative Mask’s Limits Turning Off the MaskTurning Off the Mask’s Failure Beeper Set to Audio Using the Voltmeter and Audio Frequency CounterMeasuring AC and DC Voltages AC Level Set to DC Level or AF Freq Set to match source29 Inputs and Filters for the Oscilloscope Using the Oscilloscope ScopeSelecting the Oscilloscope’s Input Using the Oscilloscope’s Marker Selecting the Oscilloscope’s FiltersTriggering the Oscilloscope Copypl Using Ibutil ProgramsSecuring aTest Procedure Clearing RAM Using the Listopts list options Program Using the Demo Program Step Using the Stplt store or plot ProgramCdma Measurements Screens and Control Fields 130 Cdma Measurements Average Power MeasurementsAvg Pwr Screens on which this measurement is displayedChannel Power Measurements Adjacent Channel Power MeasurementsScreens on which this measurement is made Chan PwrRho Rho MeasurementsFrequency Error Freq Err Estimated Rho Est RhoCode DOM Code Domain Analyzer Time Offset Carrier Feedthrough Chapter 137 Error Vector Magnitude EVM Measurements Magnitude ErrorPhase Error Code Domain Measurements IS-95 Code Domain Power, IS-95Code DOM Code Domain Analyzer, IS-95 only Selecting Absolute or Relative Code Domain Power, IS-95 onlyFast Power Code Domain Phase PhseCode Domain Timing Timing Code Domain Measurements IS-2000 Advantages of Using IS-2000Interpreting IS-2000 Channel Ordering Building a tree using the Bit Reverse methodChannel numbers. The Walsh index utilizes Walsh orders 0 Available Measurements in the Code Domain 11 Code Domain Power, Bit Reverse OrderingReading Code Domain Power, IS-2000 Code Domain Power, IS-2000Code DOM Code Domain Analyzer, IS-2000 Code Domain Power & NoiseCode Domain Fast Power Synchronize Code Domain Complex PowerPN Offset Search IQ Constellation Diagram, IS-2000 only# of Frames Control Fields for Cdma MeasurementsACP Cal ACP Fltr BWADCfs or ADC FS ACP OffsetAmplitude Code DOM Code Domain Analyze screen gain controls menuAnalyzer code domain analyzer Analyzer Cdma analyzerAnl Dir COD DOM Code Domain Analyzer main controls menuAuto Zero Anl SpecialCarrier FT or Carrier Feedthru Chan NumChan Size CD pwr unitChn Pwr Cal Controls CW RF PathCOD DOM Code Domain Analyzer all menus Data Rate Data Source Even Sec Find PNFreq Err Gain Gen DirCOD DOM Code Domain Analyzer gain controls menu Gen Special Gen ModeInput Port Input AttenLvl Code DOM Code Domain Analyzer gain controls menuMarker Lvl Power LevelMarker Pos Meas Intvl or Meas IntMeas Order COD DOM Code Domain Analyzer fast power setup controls menuMeasurement Num AvgsCOD DOM Code Domain Analyzer FP setup controls menu Phase/divOfs Trnsfer Output PortPhse PN IncrmentPN Offset Pwr Gain PN Offset or PN OfsPwr Ref Pwr IntvlPwr Scale IS-95 Pwr Scale IS-2000Qual Event Pwr ZeroRate RC-4 Rate RC-3Rate RC-5 Code DOM Code Domain Analyzer trigger controls menuRF Gen Freq RF ChannelRF In/Ant Screens on which this field is displayedSprd Fact Spread Factor Start FrameThreshold Time/div TimeTime Ofs Time OffsetTune Freq Trig EventWalsh Order Walsh ChanControl Fields 178 Analog Measurements AC ControlAM Depth Measurement DC Level Measurement AF Freq MeasurementFM Deviation Measurement Distn Distortion MeasurementFrequency Measurement Frequency Error MeasurementTX Power Measurement Is signal to noise ratio of the audio input signal Sinad MeasurementSNR Measurement Control Fields for Analog Measurements Signaling Decoder All Modes#Pts AF AnlAFGen1 Freq AF Cnt GateAFGen2 Freq AFGen1 ToAFGen2 To Signaling Encoder All ModesSpec ANL RF generator controls menu Atten HoldAudio Out Audio In LoAuto/Norm Scope trigger controls menuCenter Freq Spec ANL all menus except mask controlsSpec ANL main controls menu DC FM Zero Cont/SingleDe-Emp Gain De-EmphasisDetector DisplayDetector Types EditPt Edit MaskExt Load R Ext TTLFilter FM Coupling Freq Delta Mrkr Freq maskReference Marker Frequency Level Delta Marker Freq normal marker Spec ANL all menus when in normal mode except mask controlsFreq Ref Mrkr Normal Marker Frequency LevelIf Filter Gain CntlSpec ANL auxiliary controls menu Input GainInternal Level div Level maskLvl Delta Mrkr Lvl marker Lvl normal markerScope all control menus Marker To Peak+ Lvl Ref MrkrMarker To Peak Scope marker controls menuMask Beep Marker ToMask Type Spec ANL marker controls menuNo Pk/Avg Mod In ToNorm/Delta NormalizeNotch Freq Notch GainOffset Freq Pk Det To Port/Sweep PositionScope marker controls menu Spec ANL marker controls menu Pos/Neg Ref LevelRef Mrkr Reset RF Cnt GateSpec ANL RF generator or main controls menu Key or turn the Test Set off and on to reset it Maximum signal levels are printed on the connector panelSpec ANL RF Gen controls menu This field selects the input port for the spectrum analyzerSensitivity RF analyzer Scope ToSettling Sensitivity spectrum analyzerSpeaker ALC SpanSpeaker Vol Sets the span of frequencies to be displayed on the screenSquelch This field selects the horizontal sweep time per division Track/FixedTime-per-division is selected from a list of choices Scope main controls menuResolution Trig-DelayTX Pwr Meas Vert/div TX Pwr ZeroVert Offset Configuration Screens 224 Setting the Date and Time Configuring the InstrumentChanging the Beeper’s Volume Turning Off User MessagesConfiguring for Printing a Screen Printing a ScreenTo interrupt printing Screens Where Field is Present Control Fields on the Configuration ScreensAbort Print AntennaBeeper Base Freq User DefinedCall Chan Space User DefinedCdma Std 230 Command Escape Character Connection Time-outData Length Date Display User MessagesDuplex Out FF at End Ext RefFF at Start FirmwareOUT connector InaccessibleFlow Control Frame Clock OutputGen-Anl User Defined Gen-AnlHold-off Delay Gpib AdrsIbasic Echo Inst Echo Incoming Call SecurityLines/Page ModeModel Modem ConfigurationModem Mode Modem Initialization/ConfigurationNumber to Call Notch CouplOpt Cdma TB ParityPrinter Adrs PasswordPrinter Port Print TitleRange Hold Ref Select Remote ModeRF Chan Std RetriesRF Display RF Gen VoltsSee the RF Chan Std on page 244 for more information RF Level Offset RF In/OutSave/Recall RF OffsetSerial9 Serial BaudSerial No This field displays the serial number of the Test SetSerial Port StatusStop Length Total RAM Signaling Encoder and Decoder Decoder’s Signal Source Signaling Encoder and Decoder ScreensDecoder Frequency Measurements EncoderAMPS-TACS, NAMPS-NTACS Encoder and Decoder Control and Voice Channel IdentifiersEncoder/Decoder Interaction AMPS-TACS, NAMPS-NTACS Decoder Decoder Mode DifferencesInterpreting Decoded Data Recc and AMPS-TACS RVC MeasurementsDecoding the Reverse Control Channel Recc Data Measure Field NAMPS-NTACS Reverse Voice Channel MeasurementsDecoding NAMPS-NTACS Reverse Voice Channel RVC Data Measurement Limits Dtmf Sequence Encoder and DecoderDecoding Considerations Function Generator Encoder and DecoderDelay Control Fields for the Signaling Encoder and DecoderArm Meas BurstsBusy/Idle Signaling Decoder Modes AMPS-TACS, NAMP-NTACChannel Data hexSignaling Encoder Signaling DecoderData Level Data Rate analogSignaling Encoder Modes NAMP-NTAC Signaling Decoder Modes NAMP-NTACDSAT/DST hex Data you enter here Filler FoccFrequency Gate TimeHi Tone De-emphasis Effects on Input Level Input LevelSignaling Decoder All Modes Examples of Input Level SettingsLo Tone MeasureAMPS-TACS/NAMPS-NTACS Focc Message and Filler Data Format Message FoccMessage FVC AMPS-TACS Signaling Encoder Modes AMPS-TACSMessage/DST FVC Message FVC NAMPS-TACSSignaling Encoder Modes Dtmf Signaling Decoder Modes Dtmf Signaling Decoder All Modes Signaling Encoder All ModesNum of Bits Off TimePolarity On TimeNormal Operation Inverted OperationPre-Emp Signaling Encoder Modes DtmfRecc Data hex SAT Freq FVCSend Send Dsat FVCSend Filler Focc Signaling Encoder Modes Func Gen Send ModeSine Units Single/ContStop StandardDecoder Operating Considerations Encoder Operating ConsiderationsStop Dsat FVC Symbol Frequencies HzStop Filler Focc Stop MeasSignaling Decoder Modes AMPS-TACS, NAMP-NTAC, Func Gen Trigger Pattern binTrig Level Twist and Pre-emphasis Interaction TwistExamples of Twist and Pre-emphasis Interaction ExampleWaveform Connectors Operating Considerations ConnectorsANT Audio Audio OUT Data EXT REF EXT Scope Trig Parallel Port Pin Assignments ParallelRF IN/OUT Serial Port Pin Assignments Serial 9, 10,Serial Port Pin Assignments Pin DescriptionVideo OUT Accessories, Manuals, Support Modifications Accessories Agilent Technologies AccessoriesExternal Monitor Agilent Technologies Manuals English and OtherOptions Agilent Technologies Test SoftwareNumber Description Order Description Number 1D5 High Stability ReferenceSupport for Your Instrument Getting HelpCustomer Training Agilent Regional Sales and Service Offices Error Messages Positive Numbered Error Messages General Information About Error MessagesExample 11-1 Positive numbered error messages take the form Example 11-2 For exampleIbasic Error Messages Negative Numbered Error MessagesExample 11-4 Ibasic error messages take the form Example 11-3 For exampleText Only Error Messages Gpib Error MessagesExample Gpib error messages take the form Example Text only error messages take the formNon-Recoverable Firmware Error Message DisplayWarbles and Beeps 304 Chapter 305 306 Index 308 Index 309 310 Index 311 312 Index 313 314 Index 315 316 Index 317 318 Index 319 320 Index 321 322 Index 323 324