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Anritsu Series MS278XB QAM Measurement, Constellation Graph of 64 QAM Modulated Test Signal

Models: Series MS278XB

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Modulation Measurements

Measurements

QAM Measurement

The following modulation measurements use a 2 GHz, 64QAM modulated test signal at 5 dBm with the analyzer set up as follows:

•Modulation Format: 64 QAM

•Roll-off Factor (a): 0.22

•Symbol Rate: 5 MHz

Constellation Graph of 64 QAM Modulated Test Signal

Figure 5-18.Constellation Graph of 64 QAM Modulated Test Signal

5-40	MS278XB OM

Image 196

Anritsu Series MS278XB operation manual QAM Measurement, Constellation Graph of 64 QAM Modulated Test Signal

Contents

MS278XB Page Updates END-USER License Agreement for Anritsu Software Page Page Safety Symbols Safety-1For Safety Safety-2Table of Contents Table of Contents Front Panel Menus Table of Contents Measurements Table of Contents Software Peripherals Appendix A-Specifications Subject IndexRemote Operation Page About this Manual IntroductionAssociated Documentation ConventionsProduct Description Product DescriptionDigital Architecture RF/Analog ArchitectureGeneral Information Product Description Software Architecture Options and Accessories Part Number Optional Accessory DescriptionExternal Interfaces Identification NumberCleaning the Touch Screen Preventive MaintenanceOperating System Integrity Operating System Backup and Recovery General InformationInternal Battery Replacing the Line FusesIntroduction Power RequirementsOperating Environment Unpacking the Product Package ContentsInitial Inspection Rack Mount Installation Assembly optionalPreparation for Use Assembly optional Assembly optional Preparation for Use Rack Mount Slide Assembly DiagramInstrument Startup Power On ProcedureWarm-up Time Configuration Bios ConfigurationConfiguration Preparation for Use Instrument ShutdownWindows XP Configuration Configuration Preparation for Use Security Settings Remote AccessHard Disk Configuration Computer NameAnalyzer Configuration Tools Drop-down MenuConfiguration Preparation for Use Installing Options OptionsWiz DialogCustomizing the Tool Bar 10.Customize Toolbar DialogRemote Interface Setup Gpib SetupRemote Interface Setup Preparation for Use Gpib Interface ConnectionGpib Configuration 12.MS278XB Configuration Sub-menu13.National Instruments Measurement and Automation Explorer 14.National Instruments Gpib Configuration Dialog Network Interface Setup LAN SetupNetwork Connections 17. Control Panel 18.Network Connections Select Connect to the network at my workplace and press Next Enter the name of your new connection and press Next 24.New Connection Wizard 26.Local Area Connection Properties 28.Alternate Internet Protocol TCP/IP Properties Connecting External Devices Connecting an External Keyboard or MouseConnecting an External Monitor Connecting an External PrinterPreparation for Use Connecting External Devices 30.Add Printer WizardSelect the network radio button and press Next Connecting an External USB Device 34.Add Printer WizardPreparation for Storage Preparation for Storage/ShipmentPreparation for Shipment Instrument Overview Front Panel OverviewFront Panel Overview Instrument Overview MS278XB Front Panel DrawingInstrument Overview Front Panel Overview Image DescriptionIndex Image Description Display measurement data and interactive finger-touch menus Front Panel Keys Data DisplayMajor Function Keys Minor Function Keys Numeric Keys Connectors Pin DescriptionDVD-ROM/CD-RW Drive Function SpecificationManually Ejecting the DVD-ROM/CD-RW Drive Tray 15 mm Mm Diameter Graphical User Interface Overview Graphical User Interface Overview Instrument OverviewFile Drop-down Menu BarView 10.Front Panel Drop-down Menus Matlab About Anritsu Signature Main Menu Bar Icon DescriptionMS278XB OM Sub-menu Trees Frequency Menu Amplitude Menu Bandwidth Menu Display MenuSystem Menu Entering Data and Fly-out Menus15.Terminator Fly-out Menus RF Measurements Active Traces Active Markers Sweep ModesModulation Types Configuration Span Presets Standards 16.Selection Fly-out MenusRACH/TCP Toggle Buttons 17.Toggle ButtonsParameter Entry and Measurement Setup Dialogs 18.Drop-down Selection MenuAlpha-Numeric Entry 20.MS278XB On-Screen KeyboardGraticule Spectral Analysis Graticule DisplaysIndex Description 22.Marker Table with Delta and Noise Marker 26.Adjacent Channel Power Measurement Table 28.Vector Signal Analysis Graticule 29.QPSK Summary Display 30.Single Code Summary Table 31.Composite Constellation with Summary Table of Test Model MS278XB OM General Status Messages Instrument Messages and Status BarCalibration Messages External Keyboard Hot-key Functions Key Reference Signature Usage AT-101 UsageChanging Setups Instrument PresetInstrument Operation Calibration StateRear Panel and Connector Diagrams Rear Panel and Connector Diagrams Instrument OverviewInstrument Overview Rear Panel and Connector Diagrams Index Name/Image Description Connector Air Exhaust GrillAC Power Input Fuse BlockDescription Connector Gpib Interface Monitor InterfacePS/2 Mouse InterfaceDescription Connector PS/2 Keyboard IndexReference Output Reference InputDescription Connector Input Noise Source PowerEthernet Sweep OutputPin Name Description EOI11. Index 7 25-pin Parallel Printer Connector Pinout Diagram ID2 RX+ Name DescriptionQuick Reference Main Menu SubmenuBandwidth Menu Display Menu Quick Reference Front Panel Menus Frequency MenuMarker Menu Front Panel Menus Quick Reference DialogFrequency Main Menu Menu ArchiveMenu Archive Front Panel Menus Front Panel Menus Menu Archive Frequencies Menu Menu Archive Front Panel Menus Step Size and Offset Menu Amplitude Main Menu Front Panel Menus Menu ArchiveMenu Archive Front Panel Menus Amplitude Menu Front Panel Menus Menu Archive Axis Options Menu Y-Axis Options menu lets you set the following parametersBandwidth Main Menu Front Panel Menus Menu Archive Bandwidth Menu Menu Archive Front Panel Menus Auto Coupling Menu Marker Main Menu Modulation Menu Archive Front Panel Menus Marker Select MenuMeasurements Marker value Be used to increment the marker value Modulation Measurements Marker to MenuMenu Archive Front Panel Menus Marker Config Menu Display Lines MenuMeasurement Main Menu Spectrum Menu Archive Front Panel Menus Measurement MenuRF Measurement Types QAM/PSK Graph TypesPhase Noise Trace Main Menu Menu Archive Front Panel Menus Trace Config Menu Display Main Menu Menu Archive Front Panel Menus Display Options Menu Touch Screen MenuSweep Main Menu Menu Archive Front Panel Menus Sweep Menu 17. Sweep MenuTrigger Main Menu 10.Trigger Main MenuIf Power Wide BW SPA ModeVSA Mode Menu Archive Front Panel Menus Trigger MenuSystem Main Menu 11.System Main MenuCalibration Menu Menu Archive Front Panel Menus Rear Panel Control MenuSystem Information Menu Front Panel Menus Menu Archive Configuration Menu Remote Control MenuMenu Archive Front Panel Menus Service Menu File Menu File Main Menu25. File Menu Occupied Bandwidth Setup Dialog Parameter Entry and Measurement Setup Dialog ArchiveOBW Tab Channel Power Setup Dialog 14.Channel Power Setup DialogAdjacent Channel Power ACP Setup Dialog ACP Tab 1ACP Tab 2 Multicarrier Channel Power Setup Dialog 16.Multicarrier Channel Power Setup DialogAdj/Alt Channels Tab Advanced Tab Ccdf Setup Dialog 17.CCDF Setup DialogApply Mask Tab Spectrum Mask Setup DialogAdd\Edit\Delete Mask Tab Define Spectrum Mask Dialog VSA Modulation Parameters Setup Dialog Modulation SettingsFormat Modulation TabAdvanced Tab Qpsk Tab Wcdma Graph Type DialogBase Station/User Equipment Uplink or Downlink Code Domain Power Tab Code Domain Single Channel TabMS278XB OM Acquisition Config Tab Wcdma Setup DialogBase Station/User Equipment Uplink or MS278XB OM Modulation Analysis Config Tab Constellation Rotation Select 0 degreesTPC Limit Edge Definition Dialog 22.TPC Limit Edge Definition DialogChannel Table Editor Channel Table Editor DialogChannel Table Test Models Customize Tool Bar Dialog Options DialogMatlab Setup Dialog Basic TabWithout Option Basic Measurement Setups MeasurementsSetting the Center Frequency Basic Measurement Setups MeasurementsSetting the Frequency Span Measurements Basic Measurement SetupsSetting the Start and Stop Frequencies Setting the Reference Level Setting the Input Attenuation Setting the Scale/Div Setting the Resolution Bandwidth Setting the Video Bandwidth Setting the Sweep Time Setting the Bandwidth Coupling Modes Setting Markers MS278XB OM Setting Trace Modes MS278XB OM MS278XB OM Configuring the Triggering MS278XB OM Measurement Examples Measuring a CW Carrier Measurement Examples MeasurementsMeasuring Harmonics Displaying Wide Band FFT Mode Displaying Narrow Band FFT Mode Measuring a Pulse in the Time Domain Displaying Detectors Displaying Detector ModesDisplaying Trace Modes Measuring Phase Noise RF Measurements RF MeasurementsThird Order Intercept Measurement Measurements RF MeasurementsOccupied Bandwidth Measurement 10.Occupied Bandwidth MeasurementChannel Power Measurement 11.Channel Power Measurement Adjacent Channel Power Measurement 12.Adjacent Channel Power MeasurementMulticarrier Channel Power Measurement 13.Multi-Carrier Channel Power with Acpr MeasurementModulation Measurements Measurements Modulation Measurements14.Vector Graph of Qpsk Modulated Test Signal Qpsk Measurement15.EVM/Time Graph of Qpsk Modulated Test Signal Summary Table of Qpsk Modulated Test Signal 17.Eye Graph of Qpsk Modulated Test Signal 18.Constellation Graph of 64 QAM Modulated Test Signal QAM Measurement19.Power/Time Graph of 64 QAM Modulated Test Signal Wcdma Measurements Code Domain Power Measurement 20.Code Domain Power Graph Selection Dialog21.Code Domain Power for Test Model 22.Code Domain Power for Test Model 5 with Summary Table 23.Code Domain Power for a Test Model with Zoom MS278XB OM Modulation Measurements Code Domain Error Measurement 25.Code Domain Power Graph Selection Dialog26.Code Domain Error of Test Model 27.QPSK Graph Type Setup Dialog Modulation Measurements Qpsk Measurement28.QPSK Constellation with Summary Table 29.All Errors Vs. Time Display 30.QPSK Eye-I and Eye-Q Diagram Modulation Measurements Composite Measurement 31.Composite Graph Type Selection DialogMS278XB OM Modulation Measurements Single Code Measurement 33.Code Domain Single Channel Graph Type Selection DialogMS278XB OM MS278XB OM 36.Single-Code Summary Table with Bit Stream Display 37.Single-Code Summary Table of Hsdpa Bit Stream in Binary 38.Single Channel Code Power vs. Slot MS278XB OM 40.Code Domain Power Setup Screen 41.Code Domain Power Channel Uplink Channel Type Color42.Code Domain Power with Zoom 43.Code Domain Error 44.Code Domain Error with Zoom 45.Code Domain Single Channel Setup Screen 46.Code Domain Single Channel with Summary 47.Code Domain Single Channel-Code Power vs. Slot Overview Operation Verification Required EquipmentOperation Verification Measurements Test Setup Reference Oscillator Aging Rate OptionalOperation Verification Measurements Test Procedure 49.Equipment Setup for Frequency Readout Accuracy Test Frequency Readout AccuracySpan Specification Marker Readout MHz Frequency 50.Equipment Setup for Frequency Span Accuracy Test Frequency Span AccuracySpecification Span Error MHz F1’ F2’ F2’ F1’/0.8 SpanSwept Resolution Bandwidth 51.Equipment Setup for Swept Resolution Bandwidth TestSwept Resolution Bandwidth Test Single Sideband Phase Noise 52.Equipment Setup for Single Sideband Phase Noise TestTo Noise Ratio Calculated Phase Noise Specification Offset DBc DBc/HzCompute the Calculated Phase Noise for each value in Table 53.Equipment Setup for Average Noise Level Test Average Noise Level54.Displaying the Average Noise Level Center Frequency Measured Result Specifications 55.Equipment Setup for Frequency Response Test Frequency Response10.Frequency Response Test Reference Level Switching Uncertainty Deviation from MS2781B DBm Reference Level Resolution Bandwidth RBW Switching Uncertainty From 30 kHz RBW dB Specifications MS2781B Marker Amplitude Deviation58.Equipment Setup for Residual Spurious Responses Test Residual Spurious ResponseCenter Frequency Measured Residual Specifications MHz DBm 59.Equipment Setup for Input-related Spurious Response Test Input-related Spurious Response14.Input-related Spurious Responses Test Signature MathWorks Connectivity Description Signature-MathWorks Connectivity Option 40 onlyIntegrated MathWorks Computational Components Signature-MathWorks Connectivity Option 40 only Connecting to MatlabPreConditions Matlab Setup Dialog Matlab Control Matlab Main InterfaceSignature Measurement Trace vs. Matlab Timerplot Advanced Matlab FunctionsMicrosoft Applications Copying Graphical Screen ImagesMicrosoft Applications Copying Screen Shots to Image EditorsSoftware Peripherals Microsoft Applications Exporting Trace DataImporting the Trace Data to Excel Importing the Trace Data to Access Signature Data Imported Into ExcelSelecting the File Type in Access Page Remote Desktop Setting Up Your AnalyzerEnabling the Analyzer as the Host Installing the Client Software Remote Desktop Remote OperationThis opens the Remote Desktop Connection dialog shown below Advanced Connection Options Logging Off and Ending a Remote Desktop SessionSafety Environmental SpecificationsEMI Compatibility Page Symbols SymbolsNumerics USB Index-2Input Wcdma Index-4Input -41,3-42 QAM Measurement Type Safety Symbols Index-6Index-7 Anritsu Customer Service Centers United States France Japan