Page 1 Series MS278XB High Performance Signal Analyzer Operation Manual Software Version 4.xx Anritsu Company P/N: 10410-00273 490 Jarvis Drive Revision: D Morgan Hill, CA 95037-2809 Printed: July 2007 Copyright 2007 Anritsu Company...
Page 3: Limitation Of Warranty
Anritsu is not liable for consequential damages. LIMITATION OF WARRANTY The foregoing warranty does not apply to Anritsu connectors that have failed due to normal wear. Also, the warranty does not apply to defects resulting from improper or inadequate maintenance by the Buyer, unauthorized modification or misuse, or operation outside of the environmental specifications of the product.
Page 4: Software Product License
EULA. d. Termination. Without prejudice to any other rights, Anritsu may terminate this EULA if you fail to comply with the terms and conditions of this EULA. In such event, you must destroy all copies of the SOFTWARE PRODUCT.
Page 7: Safety Symbols
Some or all of the following five symbols may or may not be used on all Anritsu equipment. In addition, there may be other labels attached to products that are not shown in the diagrams in this manual.
Page 8: For Safety
Safety-2 For Safety Warning: Always refer to the operation manual when working near locations at which the alert mark, shown on the left, is attached. If the operation, etc., is performed without heeding the advice in the operation manual, there is a risk of personal injury.
Page 9: Table Of Contents
Table of Contents Chapter 1—General Information About this Manual ............1-1 Introduction .
Page 10 Table of Contents (Continued) Configuration............. . . 2-6 BIOS Configuration .
Page 11 Table of Contents (Continued) Graphical User Interface Overview..........3-12 Drop-down Menu Bar .
Page 12 Table of Contents (Continued) Menu Archive ............. . 4-4 Frequency Main Menu .
Page 13 Table of Contents (Continued) Parameter Entry and Measurement Setup Dialog Archive ......4-36 Occupied Bandwidth Setup Dialog ......... . 4-36 Channel Power Setup Dialog .
Page 14 Table of Contents (Continued) Modulation Measurements ........... 5-35 QPSK Measurement .
Page 15 Table of Contents (Continued) Chapter 6—Software Peripherals Introduction ..............6-1 Signature–MathWorks Connectivity (Option 40 only) .
Page 17: Chapter 1 - General Information
Signature Manuals CD-ROM. Performance specifications can be found in Appendix A, Specifications, located at the back of the Signature operation manual. Updates can be downloaded from the Documents area of the Anritsu Internet site: http://www.us.anritsu.com...
Page 18: Product Description
• Ability to run user applications and device drivers on its embedded PC The advanced design of the Anritsu Signature Signal Analyzer features the following innovations: • RF/analog architecture optimized for maximum dynamic range, high accuracy, and operation to 8 GHz in a single band •...
Page 19: Rf/Analog Architecture
General Information RF/Analog Architecture The RF/analog architecture of the Signature Signal Analyzer is designed to maximize performance over a wide frequency and dynamic range. Signature’s basic RF/analog block diagram is shown in Figure 1-1, below: Figure 1-1. Basic Signature RF/Analog Block Diagram The input signal, from either the internal 50 MHz calibrator or the test port input, is routed through the input attenuator and then to the first mixer where it is converted to the first IF frequency of 9.5 GHz.
Page 20: Software Architecture
Product Description Software Architecture The operating software of the Signature Signal Analyzer is based on the Microsoft® .Net platform and takes full advantage of the Windows® XP Professional operating system. All of the user interface constructs are based on the Windows model so that a new user who is familiar with Windows applications can learn to operate the instrument very quickly.
Page 21: Options And Accessories
Identification Number All Anritsu instruments are assigned a unique six-digit ID number, such as “040101.” This number is affixed to a decal on the rear panel of each unit. In any correspondence with Anritsu customer service, please use this number.
Page 22: Preventive Maintenance
The Microsoft Windows XP operating system is configured for optimum signal analysis performance when it leaves the factory. To maintain the system’s operating integrity, follow proper Windows shutdown procedures and do NOT modify the operating system settings or registry, hard drive partitions, or Anritsu user accounts. Antivirus Protection Signature is compatible with McAfee®...
Page 23: Operating System Backup And Recovery
General Information Operating System Backup and Recovery Signature is configured with the Norton® Ghost® backup and recovery system. This system can be accessed from the desktop Start menu or by double clicking the Ghost icon in the system tray. You can configure Ghost to make system backups or recover previous backups through its backup and recovery dialogs below: Figure 1-2.
Page 24: Replacing The Line Fuses
7. Reconnect the analyzer to the power source and set the MS278XB to Operate using the front panel power button. Internal Battery The MS278XB has a Lithium battery installed on the CPU assembly. Battery replacement should be referred to an authorized Anritsu service center. General Information MS278XB OM...
Page 25: Chapter 2 - Preparation For Use
Chapter 2 — Preparation for Use 2-1 Introduction This chapter provides information for the initial inspection, preparation for use, and installation instructions for the MS278XB signal analyzer. Information is also included for interfacing the MS278XB through: • IEEE-488.2 General Purpose Interface Bus •...
Page 26: Unpacking The Product
If the MS278XB is damaged mechanically, notify your local sales representative or Anritsu Customer Service. If either the shipping container is damaged or the cushioning material shows signs of stress, notify the carrier as well as Anritsu.
Page 27: Assembly (Optional)
Preparation for Use 2-5 Assembly (optional) Rack Mount Installation Instruments that are ordered from the factory with Option 1, Rack Mount, should have the rack mount pre- installed. Option 1 may be ordered at a later time. To install the Option 1 rack mount kit, refer to the procedure below: 1.
Page 28 Assembly (optional) 4. Install the rack mount slides over the threaded studs on the rack mount bracket and handle fixtures as shown in Figure 2-2, below, and secure them in place with the two fastening nuts. (Push the button at 1 to release and extend the slide.) Figure 2-2.
Page 29: Power On Procedure
Preparation for Use 2-6 Power On Procedure No initial setup is required. After unpacking, the MS278XB is ready for use; however, it is strongly recommended that you connect an external keyboard and mouse to facilitate ease of use of the Windows operating system, particularly when installing third-party software (refer to Section 2-4).
Page 30: Instrument Shutdown
Windows operating environment. The BIOS setup utility can be accessed by pressing F2 during the initial power up state when the Anritsu blue screen appears. If the system proceeds to the Windows XP startup screen, the BIOS will not be entered and the system will require a restart before BIOS entry can be attempted.
Page 31: User Installed Applications And Data
Preparation for Use Windows XP Configuration This section describes the various aspects of the instrument outside of the main instrument software (Signature application). It specifically addresses the various configurations and properties of the “open” Windows XP environment that are set at the Factory. Caution: Changing some of the default Windows XP settings may cause a loss of instrument control or undesired instrument behavior.
Page 32: Security Settings
Remote Desktop Refer to the Remote Desktop section in Chapter 7. Computer Name The computer name is set to SNXXXXXX (where XXXXXX is the Anritsu serial number for the instrument). Third Party Software The following third party software is loaded onto the instrument’s hard drive: •...
Page 33: Analyzer Configuration
Preparation for Use Analyzer Configuration This section describes how to determine which instrument options are installed or are available for installation. Start by selecting Options from the Tools drop-down menu shown below: Figure 2-5. Tools Drop-down Menu This displays the Options dialog box (below), which lists the installed options and their availability. Figure 2-6.
Page 34: Installing Options
Configuration Installing Options To install an Option, you will need to contact Anritsu customer service to obtain an installation key. Once the key has been obtained, you can install an option by pressing the Install Now button on the Options menu. Pressing the Install Now button will open the OptionsWiz dialog below: Figure 2-7.
Page 35: Customizing The Tool Bar
Figure 2-9. OptionsWiz Dialog For further assistance with installing options, contact your nearest Anritsu customer service center found in Table 1-4. Customizing the Tool Bar Signature’s tool bar can be customized by adding commonly used icons and eliminating those that are...
Page 36: Remote Interface Setup
GPIB Setup and LAN Setup. Refer to the Model MS278XB Programming Manual, Anritsu Part Number: 10410-00274, for detailed information about remote programming of the MS278XB using these remote interface options; refer to Chapter 8, Remote Operation for detailed information on operating the instrument remotely using Windows Remote Desktop or third party applications, such as WebEX or PCAnywhere™.
Page 37: Gpib Configuration
Preparation for Use GPIB Configuration Apply power to the MS278XB and allow the system to power up. Once the software has finished loading and start-up testing is complete, the MS278XB is ready to be remotely controlled via the GPIB. It is important to note that the MS278XB will not respond to GPIB commands until the system’s software has been loaded.
Page 38 Remote Interface Setup Preparation for Use This brings up the Measurement and Automation Explorer window, below: Figure 2-13. National Instruments Measurement and Automation Explorer 3. On the left hand panel, go to My System | Devices and Interfaces | GPIB0 (PMC-GPIB), right click on GPIB0, and then select properties from the pop-up menu.
Page 39 Preparation for Use Remote Interface Setup 4. In the GPIB Configuration dialog, change the Primary GPIB Address to the desired value. Figure 2-14. National Instruments GPIB Configuration Dialog Make similar changes on the Remote PC side by selecting the System Controller choice and changing the GPIB address as required.
Page 40: Lan Setup
Remote Interface Setup LAN Setup The LAN can be set up via the RJ45 Ethernet port. Network Connections The MS278XB supports 10/100 BASE-T. You can connect the analyzer directly to your LAN via the RJ45 connector on the rear panel. Refer to Figure 2-14, below, for an illustration. Figure 2-15.
Page 41 Preparation for Use Remote Interface Setup 2. From the Control Panel, select Network Connections. Figure 2-17. Control Panel Note: If your connection already exists and just needs to be modified, skip the next steps and proceed to Step 11. MS278XB OM 2-17...
Page 42 Remote Interface Setup 3. In the Network Connections window, under Network Tasks on the left pane, select Create a new connection. Figure 2-18. Network Connections 4. The New Connection Wizard guides you through the new connection setup. Press Next to continue. Figure 2-19.
Page 43 Preparation for Use 5. Select Connect to the network at my workplace and press Next. Figure 2-20. New Connection Wizard 6. Select Virtual Private Network connection and press Next. Figure 2-21. New Connection Wizard MS278XB OM Remote Interface Setup 2-19...
Page 44 Remote Interface Setup 7. Enter the name of your new connection and press Next. Figure 2-22. New Connection Wizard 8. Enter the Host name or IP address for your network. Figure 2-23. New Connection Wizard 2-20 Preparation for Use MS278XB OM...
Page 45 Preparation for Use Remote Interface Setup 9. Select the connection availability of your choice and press Next. Figure 2-24. New Connection Wizard 10. If you desire to have an Icon placed on the desktop, check the box and press Finish to create your new connection.
Page 46 Remote Interface Setup 11. If a connection needs to be manually set up or modified, you can right click on the connection name in the Network Connections window (Figure 2-17) and select Properties from the pop-up dialog box. Figure 2-26. Local Area Connection Properties 12.
Page 47 Preparation for Use Remote Interface Setup 13. For additional setup configurations, select Obtain an IP address automatically, then select the Alternate Configuration tab. Figure 2-28. Alternate Internet Protocol (TCP/IP) Properties Note: You may need to consult your network documentation or network administrator for assistance in manually configuring your network setup.
Page 48: Connecting External Devices
If you attempt to print while in the Signature application before a printer is installed, you will be prompted to install a printer. The following procedure is a general overview of how to add a printer. The actual menus and sequence may vary. Figure 2-29. Anritsu MS2781 Add Printer Dialog 2-24 Preparation for Use...
Page 49 Preparation for Use Connecting External Devices Pressing Yes will initiate the Windows Add Printer Wizard shown below. Figure 2-30. Add Printer Wizard If you are installing a network printer, continue with the Wizard as described below. Otherwise, it is recommended that you follow the manufacturer’s installation instructions for your printer. Figure 2-31.
Page 50 Connecting External Devices 1. Select the network radio button and press Next. Figure 2-32. Add Printer Wizard 2. Enter the name and location of your network printer, or select Browse for a printer, then press Next. Figure 2-33. Find Printers Dialog 2-26 Preparation for Use MS278XB OM...
Page 51: Connecting An External Usb Device
Preparation for Use 3. Select the location of your network printer and press Find Now, then select your printer from the list and press OK. Figure 2-34. Add Printer Wizard 4. Press Finish to complete the Add Printer Wizard. Connecting an External USB Device The external USB interface is a standard Type A, USB connector that supports the USB 2.0 standard.
Page 52: Preparation For Storage/Shipment
To provide maximum protection against damage in transit, the analyzer should be repackaged in the original shipping container. If this container is no longer available and the unit is being returned to Anritsu for repair, advise Anritsu Customer Service; they will send a new shipping container free of charge. In the event neither of these two options is possible, instructions for packaging and shipment are given below.
Page 53: Chapter 3 - Instrument Overview
Chapter 3 — Instrument Overview 3-1 Introduction This chapter provides information and instructions on operating the MS2781B signal analyzer using the front panel controls. It contains the following: • Illustrations and diagrams of the front panel, data display area, and data entry area that identify and describe all front panel controls and interfaces.
Page 54 Front Panel Overview Instrument Overview Figure 3-1. MS278XB Front Panel Drawing MS278XB OM...
Page 55 Instrument Overview Table 3-1. MS278XB Front Panel Legend Index Image MS278XB OM Description Instrument Name Tag: The instrument name plate indicates the model number and upper frequency of the instrument. 1/8 Inch Headphone Jack: The headphone jack is used to output audio and can be used with a standard headphone speaker with a 1/8 inch type mono or stereo plug.
Page 56 Front Panel Overview Table 3-1. MS278XB Front Panel Legend Index Image Description Rotary Knob: The rotary knob is used to increment a selected value up or down. Minor Function Keys: The minor function keys are used to activate second- level menus. Major Function Keys: The major function keys are used to activate basic functional parameter setups and second-level menus found on the GUI.
Page 57 Instrument Overview Table 3-1. MS278XB Front Panel Legend Index Image MS278XB OM Description DVD-ROM/CD-RW Drive Tray Manual Release: The manual release is used when the drive tray fails to open and needs to be operated manually. Data Display and Touch Panel GUI: The graphical user interface is used to display measurement data and interactive finger-touch menus.
Page 58: Data Display
Front Panel Overview Data Display The data display area is the large LCD touch screen. The touch screen is used to display measurements and function menus. The touch screen has the ability to receive input from the active soft-keys with a simple press of a finger.
Page 59: Minor Function Keys
Instrument Overview Minor Function Keys The minor function keys are located just left of the major function keys and activate second-level menu trees on the GUI. Each of the minor function keys have default parameters associated with them. The default parameter is available for adjustment via the increment keys or rotary knob after the function is activated.
Page 60: Numeric And Cursor Keys
Front Panel Overview Numeric and Cursor Keys The numeric keys are located in a block next to the LCD display. These keys are used for entering and manipulating data while in a parameter setup function: Figure 3-4. Numeric Keys Increment Up/Down: Use the increment up/down keys to increment an active parameter (up or down) and to move an active marker to the next step.
Page 61: Connectors
Instrument Overview Connectors The front panel connectors consist of the following: • Probe Power Port: This port supplies power to your power probe. Table 3-2 shows the probe power port pinout. Table 3-2. Probe Power Port Pinout Description +15 Vdc at 130 mA Ground -12.6 Vdc at 45 mA •...
Page 62: Dvd-Rom/Cd-Rw Drive
Front Panel Overview DVD-ROM/CD-RW Drive The DVD-ROM/CD-RW drive is capable of reading digitally stored data on a variety of CD media. The drive is also capable of writing digital data to CD-R and CD-RW media. You can use either 12 cm or 8 cm diameter media.
Page 63 3. Remove the paper clip and carefully slide the drive tray completely closed. If the drive tray does not slide smoothly, or there is excessive resistance, the mechanism may be damaged and in need of service from an authorized Anritsu service center. MS278XB OM 15 mm 1.0 mm Diameter...
Page 64: Graphical User Interface Overview
Graphical User Interface Overview 3-3 Graphical User Interface Overview This section provides descriptions of the front panel graphical user interface, here forth referred to as the GUI. The GUI is the LCD touch screen that can be accessed through direct touch or with a pointing device such as a mouse.
Page 65: Drop-Down Menu Bar
Instrument Overview Drop-down Menu Bar The drop-down menus along the top of the screen conform to MS-Windows standards. They provide consistent application interfacing as that found in standard MS-Windows applications. In addition, there are menu selections that allow you to activate the major/minor functions found on the front panel assembly. Figure 3-7.
Page 66: Front Panel
Graphical User Interface Overview Front Panel The Front Panel drop-down menu provides access to all of the instrument’s main menus and sub-menus. This is useful when the instrument is being accessed via the remote desktop feature. Figure 3-10. Front Panel Drop-down Menus Refer to the following for more information: •...
Page 67: Tools
This menu selection opens Windows Explorer to the directory where product support documentation can be found. Anritsu Web This menu selection opens Internet Explorer to the Anritsu Web site, if an internet connection is available. MS278XB OM Graphical User Interface Overview...
Page 68 Graphical User Interface Overview About Anritsu Signature The About Anritsu Signature dialog contains information about the analyzer’s software, provides a legal disclaimer, and offers a link to the Window’s system information file. Figure 3-13. Help | About Dialog 3-16 Instrument Overview...
Page 69: Main Menu Bar
Instrument Overview Main Menu Bar The Main Menu bar contains a set of icons that access the analyzer’s measurement and setup configuration sub-menus. Pressing an icon will refresh the sub-menu tree with the related set of sub-menus. The Main Menu bar can also be customized to display the icons you use most often.
Page 70 Graphical User Interface Overview Table 3-5. Main Menu Bar Icon List Icon Description The Sweep icon opens the “Sweep Main Menu” on page 4-27. The Zero Span icon sets the span to zero span. The Last Span icon recalls the previous span setting. The Trigger icon opens the “Trigger Main Menu”...
Page 71: Sub-Menu Trees
Instrument Overview Sub-menu Trees After pressing one of the Main Menu icons, the main menu tree is updated with the related sub-menus. Each sub-menu and its related functions are documented in Chapter 4. A comprehensive list of menus is shown in Figure 3-14, below: Frequency Menu Measure Menu...
Page 72 Graphical User Interface Overview Figure 3-15 below illustrates the terminator fly-out menus that you may encounter when entering data: Power Terminator Frequency Terminator Figure 3-15. Terminator Fly-out Menus Figure 3-16, below, illustrates most of the selection fly-out menus that you may encounter when entering data: RF Measurements Measurements...
Page 73 Instrument Overview Graphical User Interface Overview Modulation Graphs CF Step Sizes Detector Types Trigger Sources Trace States I/O Configuration Span Presets Standards Modulation Types Figure 3-16. Selection Fly-out Menus MS278XB OM 3-21...
Page 74 Graphical User Interface Overview Instrument Overview Constellation Spreading Factor Phase Error Rotation Magnitude Scale Input Transmit Power RACH/TCP Command Pattern CDP Zoom Factor Transmit Diversity Step Size Figure 3-16. Selection Fly-out Menus 3-22 MS278XB OM...
Page 75: Toggle Buttons
Instrument Overview Active Code Channels Compressed Mode Figure 3-16. Selection Fly-out Menus Toggle Buttons Several menus offer a simple on/off type of mode selection. When these controls are present, there is a check mark indicating the current selection. To toggle the selection to the other mode, press on the control button.
Page 76: Drop-Down Selection Menus
Graphical User Interface Overview Drop-down Selection Menus Many menus offer drop-down selections that contain a variety of choices. To access a drop-down selection menu, press on the down arrow for the parameter you would like to change and the drop-down selections will expand.
Page 77: Alpha-Numeric Entry
Instrument Overview Graphical User Interface Overview Alpha-Numeric Entry Alphanumeric entry can be accomplished through an external physical keyboard or through the on-screen software keyboard. Figure 3-20 shows the on-screen keyboard interface. Figure 3-20. MS278XB On-Screen Keyboard The on-screen keyboard functions the same as most common keyboards. You simply press the key that you want to enter.
Page 78: Graticule
Graphical User Interface Overview Graticule The Graph area is the main container for all of the measurement displays. The primary element in this area is the trace data on a graticule display. Annotations provide feedback on the instrument’s hardware setup for the measurement as well as measurement related warnings and status messages outside of the graticule area.
Page 79 Instrument Overview Table 3-6. Spectral Analysis Graticule Legend Index Description Status Indicator: This indicator (asterisk) is displayed when the current instrument setup does not correspond to the one which was applied when a trace is displayed. This happens when: The instrument setup is modified when the Sweep mode is set to Single and a new sweep has not yet been triggered.
Page 80: Data Displays
Graphical User Interface Overview Data Displays The following figures (Figure 3-22 to Figure 3-27) show the measurement tables that are displayed for the one-button RF measurements. Figure 3-22. Marker Table with Delta and Noise Marker Figure 3-23. Occupied Bandwidth Measurement Table Figure 3-24.
Page 81 Instrument Overview Graphical User Interface Overview Figure 3-26. Adjacent Channel Power Measurement Table Figure 3-27. Multi-Carrier Power Table MS278XB OM 3-29...
Page 82: Vector Signal Analysis Graticule Displays
Graphical User Interface Overview Vector Signal Analysis Graticule Displays Figure 3-28 shows trace data while using the various modulation graph types indicated below: • Vector Graph Type • EVM/Time Graph Type • Constellation Graph Type • Power/Time Graph Type • Eye(I) Graph Type •...
Page 83 Instrument Overview Table 3-7. Vector Signal Analysis Graticule Legend Index Description Input Status: Indicates ADC overload and L.O. unlock. Sweep Status: Displays the sweep status of Triggered and Single sweep modes. Trace Display: Vector trace data is displayed in Yellow. Y-axis Scale: This scale shows the normalized I and Q range when in the Vector, Constellation, Power vs.
Page 84 Graphical User Interface Overview Instrument Overview Figure 3-30 is a summary table showing the key modulation quality measurements and the bit stream for one of the codes. Note that the bit stream can be very long in some cases. If you have captured the full 8 slots and have a High- Speed (HSDPA) signal, there can be many pages of the bit stream.
Page 85 Instrument Overview Graphical User Interface Overview Signature can also display a variety of data combinations as shown in the following figures. Figure 3-31. Composite Constellation with Summary Table of Test Model 2 MS278XB OM 3-33...
Page 86 Graphical User Interface Overview Instrument Overview Figure 3-32. Code Domain Power for Test Model 1 with Zoom and Summary Table For more detail about making modulation measurements and setting up the displays, refer to the appropriate sections in Chapter 5. 3-34 MS278XB OM...
Page 87: Instrument Messages And Status Bar
Instrument Overview Instrument Messages and Status Bar The Status Bar Area is used for instrument wide messages to show Status, Warnings, Errors, etc. Typically, any warning messages displayed in this area will be shown until you perform some action on the interface. Error indicators are persistent until you have viewed (and cleared) the error log.
Page 88: External Keyboard Hot-Key Functions
Graphical User Interface Overview External Keyboard Hot-key Functions When the MS278XB is equipped with an external keyboard, additional input is available through various keyboard combinations (hot keys). Table 3-8 lists the hot keys and their function. Table 3-8. Keyboard Hot-key Reference Reference Signature Usage Frequency Main Menu...
Page 89: Instrument Operation
Instrument Overview Instrument Operation 3-4 Instrument Operation Changing Setups When a parameter is changed via the front panel, or a message is received containing new setup information, the system validates the requested change, and then goes into the “setup” state while the new setup information is assimilated.
Page 90: Rear Panel And Connector Diagrams
Rear Panel and Connector Diagrams 3-5 Rear Panel and Connector Diagrams Figure 3-34, below, illustrates the MS278XB’s rear panel features and connectors. Table 3-9, on the following pages, describes the indices shown, lists Input/Output specifications for each connector, and lists the connector type.
Page 91 Instrument Overview Table 3-9. MS278XB Rear Panel Index Legend Index Name/Image Air Exhaust Grill AC Power Input Fuse Block BNC Output Log Video Out MS278XB OM Description The rear panel exhaust grill provides for cooling of the instruments internal components. Ensure that the exhaust grill is not blocked.
Page 92 Rear Panel and Connector Diagrams Table 3-9. MS278XB Rear Panel Index Legend Index Name/Image GPIB Interface Parallel Interface Monitor Interface PS/2 Mouse Interface 3-40 Description IEEE 488 standard 24-pin connector that provides for remotely controlling the MS278XB from an external computer/controller via the IEEE-488 bus (GPIB).
Page 93 Instrument Overview Table 3-9. MS278XB Rear Panel Index Legend Index Name/Image PS/2 Keyboard Interface Reference Output Reference Input External IF Input IF Output I Input I Input Q Input MS278XB OM Description Provides connection to an external PS/2 keyboard. Provides a reference frequency output Using the internal 10 MHz reference: Level: 8 dBm ±...
Page 94 Rear Panel and Connector Diagrams Table 3-9. MS278XB Rear Panel Index Legend Index Name/Image Q Input Ethernet Trig/Gate Input Noise Source Power Provides power for an external noise source Sweep Status Sweep Output 3-42 Description VSA Q differential input for baseband I/Q 50Ω...
Page 95 Instrument Overview Table 3-10. Index 6: IEEE 488.2 GPIB Connector Pinout Diagram Name DIO 1 through DIO 4 NRFD NDAC Shield 13-16 DIO 5 through DIO 8 18 to MS278XB OM Description Data Input/Output. Bits are HIGH when the data is logical 0 and LOW when the data is logical 1.
Page 96 Rear Panel and Connector Diagrams Table 3-11. Index 7: 25-pin Parallel Printer Connector Pinout Diagram Name Strobe Data0 Data1 Data2 Data3 Data4 Data5 Data6 Data7 Acknowledge Busy Paper End Select Auto Feed Error Init Select In 18 to 25 Ground Table 3-12.
Page 97 Instrument Overview Table 3-13. Index 8: 15-pin XGA Connector Pinout Diagram Name Green Blue RGND GGND BGND SGND Hsync Vsync Table 3-14. Index 9 and 10: 6-pin PS2 Mouse and Keyboard Connector Pinout Diagram Name Data – Clock – MS278XB OM Description Red Video (75 Ω, 0.7 V Green Video (75 Ω, 0.7 V...
Page 98 Rear Panel and Connector Diagrams Table 3-15. Index 19: 8-pin Ethernet RJ45 Connector Pinout Diagram Name TX– – – RX– – – Table 3-16. Index 20: 4-pin USB Type A Connector Pinout Diagram Name –Data +Data 3-46 Description Transmit data (> +3 volts) Transmit data (<...
Page 99: Chapter 4 - Front Panel Menus
Chapter 4 — Front Panel Menus 4-1 Introduction This chapter provides a comprehensive collection of annotated illustration is accompanied with a description that includes information on how to use the functions available in that particular display. Additional navigation options and techniques may also be provided; however, this chapter does not provide measurement concepts.
Page 100 Quick Reference Frequency Menu Measure Menu Sweep Menu Figure 4-1. Graphical List of Menus Amplitude Menu Bandwidth Menu Trace Menu Trigger Menu File Menu Marker Menu Front Panel Menus Display Menu System Menu MS278XB OM...
Page 101 Front Panel Menus Table 4-2. List of Dialogs Dialog Occupied Bandwidth Setup Dialog Channel Power Setup Dialog Adjacent Channel Power (ACP) Setup Dialog Multicarrier Channel Power Setup Dialog VSA Modulation Parameters Setup Dialog WCDMA Graph Type Dialog WCDMA Setup Dialog Customize Tool Bar Dialog Options Dialog MATLAB Setup Dialog...
Page 102: Menu Archive
Menu Archive 4-3 Menu Archive This menu archive illustrates a comprehensive set of the main menus and sub-menus contained in the MS278XB GUI. The structure follows that of what one would encounter when normally interfacing with the analyzer. Refer to Table 4-1, Table 4-2, and Figure 4-1 for a quick reference to the menu archive. Frequency Main Menu The Frequency main menu can be quickly accessed by using the Ctrl-Shift-Q keyboard combination.
Page 103: Frequencies Menu
Front Panel Menus Frequencies Menu The Frequencies Menu lets you set the following frequency parameters: Table 4-3. Frequencies Menu Center: To set the center frequency, press in the Center parameter field and enter a new value using the numeric keys. When a new value is entered, the terminator fly-out menu will appear with the available units.
Page 104: Step Size And Offset Menu
Menu Archive Step Size and Offset Menu The Step Size and Offset Menu lets you set the center frequency step size and frequency offset parameters. Table 4-4. Step Size and Offset Menu CF Step Size: To set the center frequency step size, press the CF Step Size button and select the desired step size from the fly-out menu.
Page 105: Amplitude Main Menu
Front Panel Menus Amplitude Main Menu The Amplitude main menu can be quickly accessed by using the Ctrl-Shift-W keyboard combination. Figure 4-3. Amplitude Main Menu MS278XB OM The Amplitude main menu allows you to set the following: Reference Level Parameter Input Attenuation Level Parameter Attenuation Mode Vertical Scale-per-division Parameter...
Page 106: Amplitude Menu
Menu Archive Amplitude Menu The Amplitude menu lets you set the reference level, attenuation level, attenuation mode, and scale-per- division of the graticule’s Y-axis. Table 4-5. Amplitude Menu Reference Level: The reference level is set at the top line of the graticule. To change the value, press in the Reference Level parameter field and enter a new value using the numeric keys.
Page 107: Y-Axis Options Menu
Front Panel Menus Y-Axis Options Menu The Y-Axis Options menu lets you set the following parameters: Table 4-6. Y-Axis Options Menu Scale Type: The Scale Type button is used to toggle the vertical scale type between Logarithmic or Linear scales. The selected scale type is indicated with a check mark. This option is not currently available and the Scale Type is fixed to Log.
Page 108: Bandwidth Main Menu
Menu Archive Bandwidth Main Menu The Bandwidth main menu can be quickly accessed by using the Ctrl-Shift-E keyboard combination. Figure 4-4. Bandwidth Main Menu 4-10 The Bandwidth main menu lets you adjust the following: Resolution Bandwidth and Mode Video Bandwidth and Mode Sweep Time and Mode Bandwidth Coupling Parameters Front Panel Menus...
Page 109: Bandwidth Menu
Front Panel Menus Bandwidth Menu The Bandwidth menu lets you select between automatic or manual resolution bandwidth and set the resolution and video bandwidths when in the manual mode. Table 4-7. Bandwidth Menu RBW: To change the resolution bandwidth when in the manual mode, press in the RBW parameter field and enter a new value using the numeric keys.
Page 110: Auto Coupling Menu
Menu Archive Auto Coupling Menu The Auto Coupling menu lets you select the coupling modes and set the coupling parameters. Table 4-8. Auto Coupling Menu To select the fully coupled mode, press the All Auto button. This couples all of the bandwidth coupling factors automatically.
Page 111: Marker Main Menu
Front Panel Menus Marker Main Menu The Marker main menu can be quickly accessed by using the Ctrl-Shift-R keyboard combination. Figure 4-5. Marker Main Menu MS278XB OM The Marker main menu lets you set the: Active Marker and Marker Status Marker to Next Options Marker Configuration Parameters Display Line Setup Parameters...
Page 112: Marker Select Menu
Menu Archive Marker Select Menu The Marker Select menu lets you toggle the markers on or off, set the active marker frequency, and select between normal or delta markers. Table 4-9. Marker Select Menu When in the Spectrum and RF measurement modes, marker selections are made RF Measurements available as follows: Active Marker: To select the active marker, press on the Active Marker field and select a...
Page 113 Front Panel Menus Table 4-9. Marker Select Menu When in the WCDMA measurement mode with the QPSK or Composite graph type Modulation selected, the following marker selections are available (Refer to the WCDMA Graph Measurements Type Dialog on page 4-48 for information on setting graph types): Active Marker: To select the active marker, press on the Active Marker field and select a marker from the fly-out menu.
Page 114 Menu Archive Table 4-9. Marker Select Menu When in the WCDMA measurement mode with the Random Access Channel graph type Modulation selected, the following marker selections are available (Refer to the WCDMA Graph Measurements Type Dialog on page 4-48 for information on setting graph types): Measured Preamble: The measured preamble is fixed in this mode.
Page 115: Marker To (->) Menu
Front Panel Menus Table 4-9. Marker Select Menu When in the WCDMA measurement mode with the Code Domain Power/Error graph Modulation type selected, the following marker selections are available (Refer to the WCDMA Graph Measurements Type Dialog on page 4-48 for information on setting graph types): Active Marker: To select the active marker, press on the Active Marker field and select a marker from the fly-out menu.
Page 116: Marker Config Menu
Menu Archive Marker Config Menu The Marker Config menu lets you select the following: Table 4-11. Marker Config Menu Marker -> Trace: To select the trace that receives the marker, press on the Marker On Trace field and select the trace from the fly-out menu. Marker Table: A marker table can be displayed at the bottom of the graticule.
Page 117: Measurement Main Menu
Front Panel Menus Measurement Main Menu The Measurement main menu can be quickly accessed by using the Ctrl-Shift-T keyboard combination. Figure 4-6. Measurement Main Menu Note: All RF measurements apply only to the active trace. MS278XB OM The Measurement main menu lets you set the: Spectrum Measurement Type RF Measurement Type QAM/PSK Measurement Type...
Page 118: Measurement Menu
Menu Archive Measurement Menu The Measurement menu gives you access to setup various measurement types, such as Spectrum, RF, and a variety of modulation measurements. Table 4-13. Measurement Menu Spectrum Measurement Type: To change the measurement type, press on the Spectrum Measurement Type button and select one of the following measurement types from the Measurement Type...
Page 119 Front Panel Menus Table 4-13. Measurement Menu QAM/PSK Measurement Type: To change the measurement type, press on the Measurement Type button and select one of the following measurement types from the fly-out menu: QAM/PSK Measurement Type Standard: This selection allows you to select a measurement standard that automatically configures all of the measurement parameters.
Page 120 Menu Archive Table 4-13. Measurement Menu WiMAX Measurement Type: To change the measurement type, press on the WiMAX Measurement Measurement Type button and select one of the following measurement types from the Type fly-out menu: The WiMAX measurement selection launches the WiMAX Analysis application in a separate window.
Page 121: Trace Main Menu
Front Panel Menus Trace Main Menu The Trace main menu can be quickly accessed by using the Ctrl-Shift-A keyboard combination. Figure 4-7. Trace Main Menu MS278XB OM The Trace main menu lets you configure and set up the: Active Trace Display Trace Mode Trace Averaging Detectors...
Page 122: Trace Config Menu
Menu Archive Trace Config Menu The Trace Config menu lets you select the active trace, trace state, detector type, and set various trace options. Note: The Trace Menu is only available in Spectrum and RF measurement modes. Table 4-14. Trace Config Menu Trace Select: To set the active trace, press on the Trace Select button and select the active trace from the fly-out menu.
Page 123: Display Main Menu
Front Panel Menus Display Main Menu The Display main menu can be quickly accessed by using the Ctrl-Shift-S keyboard combination. Figure 4-8. Display Main Menu MS278XB OM The Display main menu lets you select the: Taskbar View Desktop View Video Inversion Touch Screen Calibration Menu Archive 4-25...
Page 124: Display Options Menu
Menu Archive Display Options Menu The Display Options menu lets you set up limit lines on the graticule for display and measurement purposes. Table 4-15. Display Options Menu View Taskbar: To display the Windows taskbar, press the View Taskbar toggle button. View Desktop: To display the Windows desktop, press the View Desktop button to On.
Page 125: Sweep Main Menu
Front Panel Menus Sweep Main Menu The Sweep main menu can be quickly accessed by using the Ctrl-Shift-D keyboard combination. Figure 4-9. Sweep Main Menu MS278XB OM The Sweep Main Menu lets you: Set the Sweep Time Parameter Select the Sweep Mode Start a Single Sweep Select the Sweep Type Menu Archive...
Page 126: Sweep Menu
Menu Archive Sweep Menu The Sweep menu lets you lets you select between continuous or single sweep modes, and to start a single sweep. Table 4-17. Sweep Menu Sweep Time: To set the sweep time, press in the Sweep Time parameter field and enter the desired sweep time value.
Page 127: Trigger Main Menu
Front Panel Menus Trigger Main Menu The Trigger main menu can be quickly accessed by using the Ctrl-Shift-F keyboard combination. Figure 4-10. Trigger Main Menu MS278XB OM The Trigger main menu lets you: Select the Trigger Source Set the Trigger Level Set the Trigger Edge Set the Trigger Delay Menu Archive...
Page 128: Trigger Menu
Menu Archive Trigger Menu The Trigger menu lets you configure the following: Table 4-18. Trigger Menu Trigger Source: To change the trigger source, press on the Trigger Source button and select the trigger source from the fly-out menu selections listed under Trigger Level below: Trigger Level: To set the trigger level, press in the Trigger Level parameter field and enter a value using the numeric keys.
Page 129: System Main Menu
Front Panel Menus System Main Menu The System main menu can be quickly accessed by using the Ctrl-Shift-G keyboard combination. Figure 4-11. System Main Menu MS278XB OM The System main menu lets you: Set Up the Rear Panel I/O Start an IF Calibration View the System Information Configure the System Hardware Toggle Between Local and Remote Operation...
Page 130: Rear Panel Control Menu
Menu Archive Rear Panel Control Menu The Rear Panel Control menu lets you configure the rear panel input/output ports and toggle the noise source power On or Off. Table 4-19. Rear Panel Control Menu Reference Frequency: To toggle between an internal or external reference input, press on the External/Internal toggle button.
Page 131: Configuration Menu
Front Panel Menus Configuration Menu The Configuration menu lets you configure the IO, optimize phase noise, and select filtering. Table 4-22. Configuration Menu IO Config: The IO Config button lets you select the National Instruments GPIB configuration utility (refer to “GPIB Setup” on page 2-12 for more information), view the instrument IP address (Ethernet), or view the instrument name.
Page 132: Service Menu
Menu Archive Service Menu The Service menu lets you toggle the internal 50 MHz calibrator Off and On and initiate a calibration alignment. Table 4-24. Calibrator Menu Calibrator: To toggle the internal 50 MHz calibrator Off or On, press on the calibrator Off/On toggle button.
Page 133: File Main Menu
Anritsu Setup File (.asr). The current default folder is C:\Signature\Setup\. To recall a previously saved instrument setup, press on the Recall... button to open a Windows Open dialog. You can then browse for the Anritsu Setup File (.asr). The current default folder is C:\Signature\Setup\.
Page 134: Parameter Entry And Measurement Setup Dialog Archive
Parameter Entry and Measurement Setup Dialog Archive 4-4 Parameter Entry and Measurement Setup Dialog Archive This property and dialog menu archive illustrates the following set of property sheets and other dialog menus contained in the MS278XB GUI: • Occupied Bandwidth Setup Dialog •...
Page 135: Channel Power Setup Dialog
Front Panel Menus Channel Power Setup Dialog Channel Power measures the power and power spectral density in the channel bandwidth that you specify in the following dialogs: Channel Power Tab Advanced Tab Figure 4-14. Channel Power Setup Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive Channel BW: Sets the bandwidth over which the measurement is made.
Page 136: Adjacent Channel Power (Acp) Setup Dialog
Parameter Entry and Measurement Setup Dialog Archive Adjacent Channel Power (ACP) Setup Dialog Adjacent Channel Power (ACP) is a measure of the power that leaks into adjacent transmit channels. ACP measures the power present in the adjacent transmit channels and can be set up as follows: ACP Tab (1 of 2) Figure 4-15.
Page 137 Front Panel Menus ACP Tab (2 of 2) Advanced Tab Figure 4-15. Adjacent Channel Power Setup Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive Alt2 Channel: Toggles the Alt2 channel measurement off or on. Alt2 Channel Width: Sets the bandwidth of the Alt2 channel.
Page 138: Multicarrier Channel Power Setup Dialog
Parameter Entry and Measurement Setup Dialog Archive Multicarrier Channel Power Setup Dialog Multicarrier Channel Power is similar to the ACP measurement and can be set up as follows: Transmit Channels Tab Figure 4-16. Multicarrier Channel Power Setup Dialog 4-40 Front Panel Menus Number of Channels: Sets the number of channels.
Page 139 Front Panel Menus Adj/Alt Channels Tab Figure 4-16. Multicarrier Channel Power Setup Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive Adj Channel: Toggles the adjacent channel On or Off. Adj Channel Width: Sets the adjacent channel width. Range: 1 Hz to 8 GHz Default: 5 MHz Adj Channel Spacing: Sets the adjacent channel spacing.
Page 140 Parameter Entry and Measurement Setup Dialog Archive ACP Reference Tab Advanced Tab Figure 4-16. Multicarrier Channel Power Setup Dialog 4-42 Front Panel Menus ACP Reference Channel Selection Mode: Selects the adjacent channel power reference mode of: Select Channel Highest Power Channel Lowest Power Channel Channel #: Enter the channel number for the reference (channel 1 through 12).
Page 141: Ccdf Setup Dialog
Front Panel Menus CCDF Setup Dialog Occupied Bandwidth integrates the power of the displayed spectrum and puts markers at the bandwidth limits as specified in the measurement setup fields. The measurement defaults to 99% of the occupied bandwidth. CCDF Setup Tab Figure 4-17.
Page 142: Spectrum Mask Setup Dialog
Parameter Entry and Measurement Setup Dialog Archive Spectrum Mask Setup Dialog Spectrum Masks define limits typically used for compliance testing. Apply Mask Tab Add\Edit\Delete Mask Tab Figure 4-18. Spectrum Mask Setup Dialog 4-44 Front Panel Menus To apply or remove a spectrum mask from the measurement, select a mask from the list and toggle the mask to On or Off.
Page 143 Front Panel Menus Define Spectrum Mask Dialog Figure 4-18. Spectrum Mask Setup Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive Defining a spectrum mask consists of entering the available mask definitions provided on the Define Spectrum Mask dialog. Once the mask is defined, press Save to save the mask.
Page 144: Vsa Modulation Parameters Setup Dialog
Parameter Entry and Measurement Setup Dialog Archive VSA Modulation Parameters Setup Dialog The VSA Modulation Parameters dialog allows you to specify the modulation setting for your measurement. Modulation Tab Figure 4-19. VSA Modulation Parameters Dialog 4-46 Modulation Settings: Format: BPSK: Binary Phase Shift Keying QPSK: Quadrature Phase Shift Keying (default) Pi4QPSK: Pi/4 Quadrature Phase Shift Keying 8PSK: Octet Phase Shift Keying...
Page 145 Front Panel Menus Advanced Tab Figure 4-19. VSA Modulation Parameters Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive Tracking Range: Toggles the tracking range on or off. Input: This button opens a fly-out menu with the following input sources: Wideband RF Input Narrowband RF Input Wideband Single I/Q Input...
Page 146: Wcdma Graph Type Dialog
Parameter Entry and Measurement Setup Dialog Archive WCDMA Graph Type Dialog The WCDMA Graph Type dialog lets you select the graph type display for your measurement. QPSK Tab Composite Tab Figure 4-20. WCDMA Graph Type Dialog 4-48 For QPSK measurements, the following graph types can be selected: Vector Diagram Constellation Diagram...
Page 147 Front Panel Menus Code Domain Power Tab Code Domain Single Channel Tab Figure 4-20. WCDMA Graph Type Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive For Code Domain Power measurements, the following graph types can be selected: Code Domain Power Code Domain Power with Zoom Code Domain Error Code Domain Error with Zoom...
Page 148 Parameter Entry and Measurement Setup Dialog Archive Other Tab Figure 4-20. WCDMA Graph Type Dialog 4-50 The following graph types can be selected for additional Downlink measurements: Sync Channel (SCH) Summary and Slot Number for Data Bits Transmit Power Control Transmit Power vs.
Page 149: Wcdma Setup Dialog
Front Panel Menus WCDMA Setup Dialog The WCDMA Setup dialog allows you to specify the WCDMA settings for your measurement. Acquisition Config Tab Figure 4-21. WCDMA Setup Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive Input: Narrowband RF Input. IQ Input Impedance: Select between 50 Ω...
Page 150 Parameter Entry and Measurement Setup Dialog Archive Demodulation Config (1) Tab Figure 4-21. WCDMA Setup Dialog 4-52 Front Panel Menus Scrambling Code: Manually sets the modulation scrambling code or selects Auto. Scramble Code Type: Selects between long and short. Scramble Code for Compressed Channel: Select between Ordinary, Left Alternate, or Right Alternate.
Page 151 Front Panel Menus Demodulation Config (2) Tab Modulation Analysis Config Tab Figure 4-21. WCDMA Setup Dialog MS278XB OM Parameter Entry and Measurement Setup Dialog Archive IQ Origin Offset for EVM: Select to include or exclude the IQ origin offset for the error vector magnitude.
Page 152: Tpc Limit Edge Definition Dialog
Parameter Entry and Measurement Setup Dialog Archive TPC Config Tab Figure 4-21. WCDMA Setup Dialog TPC Limit Edge Definition Dialog The TPC Limit Edge Definition dialog lets you manually enter the transmit power control limit edge definitions. Figure 4-22. TPC Limit Edge Definition Dialog 4-54 Front Panel Menus Time Range: Enter the number of frames for the...
Page 153: Channel Table Editor Dialog
Front Panel Menus Channel Table Editor Dialog The Channel Table Editor dialog lets you manually enter the active code channel setup. Channel Table Editor Channel Table Test Models Figure 4-23. Channel Table Dialogs MS278XB OM Parameter Entry and Measurement Setup Dialog Archive The Channel Table Editor is used to create or edit channel tables.
Page 154: Customize Tool Bar Dialog
Parameter Entry and Measurement Setup Dialog Archive Front Panel Menus Customize Tool Bar Dialog The Customize Tool Bar Dialog allows you to add and remove icons to suit your needs. Figure 4-24. Customize Tool Bar Dialog Refer to “Customizing the Tool Bar” on page 2-11 for more information. Options Dialog The Options dialog allows you to view the options list.
Page 155: Matlab Setup Dialog
Front Panel Menus MATLAB Setup Dialog The MATLAB Setup dialog allows you to launch The MathWorks MATLAB application. In this dialog, you can toggle the MATLAB connection On and Off, and select which information to send (Active Traces and I/O Vectors).
Page 156 Parameter Entry and Measurement Setup Dialog Archive Advanced Tab Figure 4-26. MATLAB Setup Dialog Note: The connection to MATLAB can only be made when Option 40 is installed. Option 40 comes with a trial version of MATLAB, from The MathWorks, that may need to be activated. The full MATLAB software is not supplied with Signature and must be purchased separately.
Page 157: Chapter 5 - Measurements
Chapter 5 — Measurements 5-1 Introduction This chapter provides procedures on how to make several common spectrum analyzer measurements. It is assumed that you have a basic understanding of spectrum analyzer measurements and that the MS278XB front panel and menu structure is familiar to you. Refer to Chapter 3 — for a description of the instrument’s front panel operation and to Chapter 4 —...
Page 158 Basic Measurement Setups Setting the Center Frequency The center frequency is set at the center of the graticule display. 1. Press the Freq icon on the main menu bar, or press the Frequency key on the instrument front panel, to display the Frequency menu below: 2.
Page 159 Measurements Setting the Frequency Span The frequency span is set such that the graticule display shows the entire span from the left edge of the graticule to the right edge of the graticule. 1. Press the Freq icon on the main menu bar, or press the Frequency key on the instrument front panel, to display the Frequency menu below: 2.
Page 160: Setting The Start And Stop Frequencies
Basic Measurement Setups Setting the Start and Stop Frequencies The start frequency is set at the left side of the graticule display and the stop frequency is set at the right side of the graticule display. 1. Press the Freq icon on the main menu bar, or press the Frequency key on the instrument front panel, to display the Frequency menu below: 2.
Page 161: Setting The Reference Level
Measurements Setting the Reference Level The reference level is set at the top of the graticule display. Measurements can only be made on signal peaks that are below the reference level, so it is important to determine the approximate level of the signal peak and appropriately set the reference level higher than the signals being measured.
Page 162: Setting The Input Attenuation
Basic Measurement Setups Setting the Input Attenuation The input attenuation is set to bring the input signal down to an optimum level range below +30 dBm and to protect the input stage of the analyzer from damage. The input attenuation can be selected between Manual or Auto.
Page 163 Measurements Setting the Scale/Div The Scale/Div selection is only available when the instrument is set to Log mode. The Scale/Div setting adjusts the number of units per vertical division of the graticule display. 1. Press the Amp icon on the main menu bar, or press the Amplitude key on the instrument front panel, to display the Amplitude menu below: 2.
Page 164: Setting The Resolution Bandwidth
Basic Measurement Setups Setting the Resolution Bandwidth The Resolution Bandwidth (RBW) sets the filter response of the analyzer’s IF stages. This is defined as the width of the filter response at its 3 dB (50%) point from maximum. Increasing the RBW allows faster sweep times while decreasing the RBW allows you to view lower noise levels.
Page 165: Setting The Video Bandwidth
Measurements Setting the Video Bandwidth The Video Bandwidth (VBW) sets the filter response of the analyzer’s Video processor. 1. Press the BW icon on the main menu bar, or press the Bandwidth key on the instrument front panel, to display the Bandwidth menu below: 2.
Page 166: Setting The Sweep Time
Basic Measurement Setups Setting the Sweep Time The Sweep Time sets the duration of a full span sweep. When the sweep time is set to Manual mode, the RBW and VBW settings need to be set to Auto to allow for their automatic determination. 1.
Page 167: Setting The Bandwidth Coupling Modes
Measurements Setting the Bandwidth Coupling Modes The Bandwidth Auto Coupling modes (Span/RBW and VBW/RBW) sets the coupling ratios of the span, RBW, and VBW. These ratios can be set automatically or manually as follows: 1. Press the BW icon on the main menu bar, or press the Bandwidth key on the instrument front panel, then expand the Auto Coupling menu by selecting it to display the menu below: 2.
Page 168: Setting Markers
Basic Measurement Setups Setting Markers Markers can be used to measure the frequency and peak power values as follows: 1. Press the Marker icon on the main menu bar, or press the Marker key on the instrument front panel, to display the Marker Select menu below: 2.
Page 169 Measurements 5. To activate the marker table, select the Marker Config menu and press the Marker Table Off/On toggle button. The marker table is displayed under the graticule as shown below: MS278XB OM Basic Measurement Setups 5-13...
Page 170: Setting Trace Modes
Basic Measurement Setups Setting Trace Modes Signature can display up to five traces, each using different trace modes and detectors. Set up the various trace modes and detectors as follows: 1. Press the Trace icon on the main menu bar, or press the Trace key on the instrument front panel, to display the Trace Config menu below: 2.
Page 171 Measurements Basic Measurement Setups 3. Press the Trace Mode button and select a trace mode from the fly-out menu below to turn the trace on. Note: Refer to Displaying Trace Modes on page 5-26 for a detailed description of the trace modes. MS278XB OM 5-15...
Page 172 Basic Measurement Setups Measurements 4. To change the detector for the currently active trace, press the Detector button and select a new detector from the fly-out menu below: Note: Refer to Displaying Detectors on page 5-25 for a more detailed description of the different detectors. 5-16 MS278XB OM...
Page 173: Configuring The Triggering
Measurements Configuring the Triggering Signature has a variety of trigger modes and configurations you can setup to help you display signals. Configure the instrument triggering as follows: 1. Press the Trig icon on the main menu bar, or press the Trigger key on the instrument front panel, to display the Trigger menu below: 2.
Page 174 Basic Measurement Setups 3. Press in the Trigger Level parameter field and enter the trigger level using the keypad, then select the appropriate terminator from the fly-out menu below: 4. Select the trigger slope by pressing the Rising/Falling toggle button. 5.
Page 175: Measurement Examples
Measurements 5-3 Measurement Examples The examples in this section give a simple step-by-step instruction on how to set up the MS278XB to perform the measurement and show a final screen shot of the measurement result. The following example measurements are shown: •...
Page 176 Measurement Examples Measuring a CW Carrier The following example shows a basic measurement of a 0 dBm, 5 GHz carrier using markers: 1. Preset the analyzer using the Preset button. 2. On the analyzer, set up the following: Center Frequency: 5 GHz Span: 20 kHz RBW: 200 Hz 3.
Page 177: Measuring Harmonics
Measurements Measuring Harmonics The following example shows a basic measurement of the second and third harmonic of a + 10 dBm, 1 GHz carrier using delta markers: 1. Preset the analyzer using the Preset button. 2. On the analyzer, set up the following: Center Frequency: 2 GHz Span: 3 GHz Reference Level: 10 dBm...
Page 178: Displaying Wide Band Fft Mode
Measurement Examples Displaying Wide Band FFT Mode The following example shows a modulated, 1 GHz signal in the wide band FFT mode: 1. Preset the analyzer using the Preset button. 2. On the analyzer, set the center frequency to 1 GHz. 3.
Page 179: Displaying Narrow Band Fft Mode
Measurements Displaying Narrow Band FFT Mode The following example shows a modulated, 1 GHz signal in the narrow band FFT mode: 1. Preset the analyzer using the Preset button. 2. On the analyzer, set the center frequency to 1 GHz. 3.
Page 180: Measuring A Pulse In The Time Domain
Measurement Examples Measuring a Pulse in the Time Domain The following example shows a triggered measurement of a pulsed 1 GHz signal in zero-span mode: 1. Preset the analyzer using the Preset button. 2. On the analyzer, set up the following: Center Frequency: 1 GHz Span: 0 Hz Reference Level: 10 dBm...
Page 181: Displaying Detectors
Measurements Displaying Detectors The following example shows an example of a 1 GHz carrier using the Average, RMS, Minimum, and Maximum detectors: 1. Preset the analyzer using the Preset button. 2. Set the center frequency to 1 GHz and the span to 300 kHz. 3.
Page 182: Displaying Trace Modes
Measurement Examples Displaying Trace Modes The following example shows the display of a 1 GHz carrier using the MaxHold, Average, and MinHold trace states: 1. Preset the analyzer using the Preset button. 2. Set the center frequency to 1 GHz and the span to 300 kHz. 3.
Page 183: Measuring Phase Noise
Measurements Measuring Phase Noise The following example shows a basic measurement of a 1 GHz carrier’s 100 kHz phase noise using markers: 1. Preset the analyzer using the Preset button. 2. On the analyzer, set up the following: Center Frequency: 1 GHz Span: 1 MHz RBW: 1 kHz Sweep Time: 30 seconds...
Page 184: Rf Measurements
RF Measurements 5-4 RF Measurements This section describes the one-button Spectrum RF measurements that are available. In the RF measurement mode (refer to “Measurement Main Menu” on page 4-19), you can make power measurements, such as: • Third Order Intercept Measurement •...
Page 185 Measurements Third Order Intercept Measurement The Third Order Intercept (TOI) measurement computes and displays the output intercept point and places markers on the trace to indicate the measured signals and their third-order products. For odd orders, the measurement is done by: 1.
Page 186 RF Measurements Measurements Occupied Bandwidth Measurement The Occupied Bandwidth (OBW) measurement shows the bandwidth that includes most of the channel energy. This is usually 99%, but can be adjusted. It also shows the bandwidth that is occupied down to X dB below the signal level, which can also be adjusted.
Page 187: Channel Power Measurement
Measurements Channel Power Measurement The Channel Power (CP) measurement is similar to a power meter. It shows the total power from a transmitter, but the measurement is more accurate than a power meter as it is frequency selective and can be made on lower amplitude signals.
Page 188 RF Measurements Measurements Figure 5-11. Channel Power Measurement 5-32 MS278XB OM...
Page 189: Adjacent Channel Power Measurement
Measurements RF Measurements Adjacent Channel Power Measurement Adjacent Channel Power (ACP) is a measure of the power that leaks into adjacent transmit channels. The ACP measurement measures the power present in the transmit channel (refer to Channel Power Measurement on page 5-31) along with the adjacent transmit channels that have been configured in the setup menu.
Page 190: Multicarrier Channel Power Measurement
RF Measurements Measurements Multicarrier Channel Power Measurement The Multicarrier Channel Power (MCCP) measurement is similar to the Channel Power measurement (refer to Channel Power Measurement on page 5-31). It shows the total power from a transmitter, but the measurement is more accurate than a power meter as it is frequency selective and can be made on lower amplitude signals. The Multicarrier Channel Power measurement is similar in this regard, only it is capable of measuring up to 12 carriers at the same time, along with measuring the adjacent channel and two alternate channel powers.
Page 191: Modulation Measurements
Measurements 5-5 Modulation Measurements This section outlines a few common modulation measurements performed by Signature. These measurements include: • QPSK Measurement • QAM Measurement • WCDMA Measurements • Code Domain Power Measurement • Code Domain Error Measurement • Composite Measurement •...
Page 192: Qpsk Measurement
Modulation Measurements QPSK Measurement The following modulation measurements use a 2 GHz test signal at 5 dBm with the analyzer set up as follows: • Modulation Format: QPSK • Filter Type: vNyquist • Roll-off Factor (a): 0.22 • Symbol Rate: 3.84 MHz Vector Graph of QPSK Modulated Test Signal Figure 5-14.
Page 193 Measurements Modulation Measurements EVM vs. Time Graph of QPSK Modulated Test Signal Figure 5-15. EVM/Time Graph of QPSK Modulated Test Signal MS278XB OM 5-37...
Page 194 Modulation Measurements Measurements Summary Table of QPSK Modulated Test Signal Figure 5-16. Summary Table of QPSK Modulated Test Signal 5-38 MS278XB OM...
Page 195 Measurements Modulation Measurements Eye (I or Q) Graph of QPSK Modulated Test Signal Figure 5-17. Eye Graph of QPSK Modulated Test Signal MS278XB OM 5-39...
Page 196: Qam Measurement
Modulation 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.
Page 197 Measurements Modulation Measurements Power vs. Time Graph of 64 QAM Modulated Test Signal Figure 5-19. Power/Time Graph of 64 QAM Modulated Test Signal MS278XB OM 5-41...
Page 198: Wcdma Measurements
Modulation Measurements WCDMA Measurements All of the common modulation quality measurements are available, similar to the Signature Option 38 (QAM/ PSK Modulation Analysis); however, since this is focused on WCDMA, the symbol (chip) rate is fixed at 3.84 MHz. A few additional displays (compared to Option 38) are available as well, including Magnitude Error vs. Time and Phase Error vs.
Page 199: Code Domain Power Measurement
Measurements Modulation Measurements Two key measurements for CDMA are the Code Domain Power (CDP) and Code Domain Error (CDE). Code Domain Power Measurement Signature can display the Code Domain Power with an optional zoom window or an optional summary table, or both.
Page 200 Modulation Measurements Measurements The Code Domain Power graph shows the power in each code and allows a comparison to the total signal power in terms of absolute power. Figure 5-21. Code Domain Power for Test Model 5-44 MS278XB OM...
Page 201 Measurements Modulation Measurements The following CDP display is with the summary table view active. The table can be scrolled by using the scroll buttons on the right side of the table. Figure 5-22. Code Domain Power for Test Model 5 with Summary Table MS278XB OM 5-45...
Page 202 Modulation Measurements Measurements The following CDP display is with the zoom view active. The zoom view can be scrolled by using the scroll buttons on the bottom of the graph. Figure 5-23. Code Domain Power for a Test Model with Zoom 5-46 MS278XB OM...
Page 203 Measurements Modulation Measurements The following CDP display is with both the zoom and summary table views active. The views can be scrolled by using the scroll buttons next to each of the graphs. Figure 5-24. Code Domain Power for Test Model 1 with Zoom and Summary Table MS278XB OM 5-47...
Page 204: Code Domain Error Measurement
Modulation Measurements Code Domain Error Measurement Signature can display the Code Domain Error with an optional zoom window or an optional summary table, or both. In each case, the absolute power in each active code is shown. Below is the graph type selection dialog: Figure 5-25.
Page 205 Measurements Modulation Measurements The CDE graphs shows the error of each code and is similar to the EVM of each code, but it is in dB. Figure 5-26. Code Domain Error of Test Model 2 MS278XB OM 5-49...
Page 206: Qpsk Measurement
Modulation Measurements QPSK Measurement The next class of modulation quality measurements is when you don’t have a full WCDMA transmitter, but you want to measure the modulation quality anyway. This is a common test for RF components, for example. These are called QPSK measurements, as you would use a QPSK-modulated signal generator as a source.
Page 207 Measurements The following display is a constellation measurement along with the key summary measurements (EVM, IQ Offset, Frequency Error, Magnitude Error and Phase Error). Figure 5-28. QPSK Constellation with Summary Table MS278XB OM Modulation Measurements 5-51...
Page 208 Modulation Measurements Signature can also show displays of multiple measurements at once, such as this All Errors vs. Time display. This display simultaneously shows EVM, Magnitude Error and Phase Error, all versus time. The display scale of EVM, Magnitude Error, and Phase Error can be set in the Demodulation Config (2) Tab in the WCDMA Setup dialog.
Page 209 Measurements Eye diagrams are also available. These can be of the I channel, the Q channel, or both at once as show here. Figure 5-30. QPSK Eye-I and Eye-Q Diagram MS278XB OM Modulation Measurements 5-53...
Page 210: Composite Measurement
Modulation Measurements Composite Measurement The next class of measurements are of the Composite signal. This measures the entire coded WCDMA signal and provides metrics for the entire signal in both uplink and downlink modes. A standard measurement of the transmitter is the Composite EVM (shown in the summary table). This is the EVM of a signal that has all of the active codes combined together for the entire transmitter.
Page 211 Measurements Below is a composite constellation along with the summary table. The composite constellation includes the effects of all active codes as well as noise. If there was only one active code, the constellation would be very simple—it would look like QPSK. As additional codes are added, the constellation gets more complex.
Page 212: Single Code Measurement
Modulation Measurements Single Code Measurement The next class of modulation quality measurements focuses on a single WCDMA code. This is again very similar to the QPSK and Composite measurement selections, but with a few significant differences. Instead of an optional summary table with each measurement, there is an optional Code Domain Power graph;...
Page 213 Measurements The following figure is an example of the single-code measurements. This is the Code Power vs. Slot overview looking at 1 Frame (15 slots). The optional Code Domain Power graph shows that the chosen code (#65 at spreading factor 256) is an active code since it is highlighted in blue. Two additional codes at the left are the pilot signal (P-CPICH) and the control channels (SCH &...
Page 214 Modulation Measurements This single-code example shows the 16QAM constellation of an HSDPA signal. This is Test Model 5 with two high speed data channels. The selected code (#4 at Spreading Factor 16) is shown highlighted. Note the buttons at the bottom of the screen that make it easy to move among the active codes. Figure 5-35.
Page 215 Measurements Below is the Summary table showing the key modulation quality measurements and the bit stream for one of the codes. In this case, it is code #11 at spreading factor 128. The modulation quality measurements are again very similar to the Composite & QPSK measurements with minor differences. For example, PCDE and Rho don’t make sense for a single code.
Page 216 Modulation Measurements Below is an example of the summary table showing the bit stream of a high-speed channel in binary. In this case, you can see about 2.5 slots on the display. Figure 5-37. Single-Code Summary Table of HSDPA Bit Stream in Binary 5-60 Measurements MS278XB OM...
Page 217: Single Code With Compressed Mode Measurement
Measurements Single Code with Compressed Mode Measurement The final class of measurements is of Single Codes in Compressed Mode. We are calling this a separate “class” as there are a number of significant distinctions from the usual single-code measurements. This example is of the Code Power vs. Slot overview, but with the maximum capture time selected (eight frames or 120 slots).
Page 218 Modulation Measurements For all other Single Channel measurements (other than the Code Power vs. Slot Overview), you can choose either the Normal or Compressed display. The measurement results will then be for the signal assuming that it is in the mode of the chosen Analysis Start and Length. Figure 5-39.
Page 219: Wcdma Uplink Code Domain Power
Measurements WCDMA Uplink Code Domain Power The Code Domain Power (CDP) measurement for Uplink measures the CDP for each code channel for each Orthogonal Variable Spreading Factor (OVSF) code. There are four graph type options for this measurement: • Code Domain Power •...
Page 220 Modulation Measurements The color code for the different uplink channel types are listed in the following table. Table 5-1. Channel Uplink Channel Type DPCCH DPDCH HS-DPCCH E-DPCCH E-DPDCH Figure 5-41. Code Domain Power If the summary option is enabled, the channel name, the code domain power values (both absolute and relative), and the code domain error values of the active code channels are displayed at the bottom of the CDP graph.
Page 221 Measurements To get a clearer picture of the content in the display, select the CDP with Zoom graph type. A zoom of 16 code channels will be shown depending on the position of the dotted frame at the top graph. The step size of the zooming frame is set in the Demodulation Config (2) Tab in the WCDMA Setup Dialog.
Page 222 Modulation Measurements The Code Domain Error graph shows the code domain error for each channel instead of the code domain power. Figure 5-43 and Figure 5-44 show the Code Domain Error and Code Domain Error with Zoom for the same signal shown earlier in Figure 5-41 and Figure 5-42. Figure 5-43.
Page 223 Measurements Modulation Measurements Figure 5-44. Code Domain Error with Zoom MS278XB OM 5-67...
Page 224: Wcdma Uplink Code Domain Single Channel
Modulation Measurements WCDMA Uplink Code Domain Single Channel The Code Domain Single Channel measurement for Uplink shows the CDP for each code channel. There are two graph type options for this measurement: • Summary • Code Power vs. Slot Overview In both graphs, the CDP values are shown at the bottom of the display.
Page 225 Measurements The summary graph is shown in Figure 5-46. The top half of the display shows the detected data for each slot of the code channel. When the I-button is clicked, the detected data for the programmed I-channel is displayed. When the Q-button is pressed, the detected data for the programmed Q-channel is displayed. Figure 5-46.
Page 226 Modulation Measurements The Code Power vs. Slot Overview graph is shown in Figure 5-47. The top half of the display shows the code power at each slot for the code channel. The yellow plot is the I-channel code and the green plot is the Q-channel code.
Page 227: Operation Verification
Note: Specifications listed in this section are for reference only and should be verified with the Signature Datasheet, part number: 11410-00396. The most current revision can be downloaded from the Documents area of the Anritsu Internet site: Required Equipment Table 5-2 lists the equipment used throughout the verification procedures.
Page 228 Impedance: 50 Ω Frequency Range: DC to 8 GHz Termination Return Loss: 40 dB 5-72 Measurements Recommended Manufacturer/Model Anritsu Model 15NNF50-1.5C Maury Model 8828B Maury Model 8828C Weinschel Model 1870A Anritsu Model ML2438A Anritsu Model MA2442B Anritsu Model MN63A Anritsu Model 28N50-2...
Page 229: Test Setup
Measurements Reference Oscillator Aging Rate (Optional) The following test can be used to verify that the MS2781B 10 MHz Reference Oscillator is within its aging specification. The instrument derives its frequency accuracy from an internal 10 MHz crystal oscillator standard. An inherent characteristic of crystal oscillators is the effect of crystal aging within the first few days to weeks of operation.
Page 230: Test Procedure
Operation Verification Test Procedure 1. On the MS278XB, set the 10 MHz Reference to Internal Reference. 2. On the frequency standard, cycle the menu screen to the sixth screen (External Frequency Measurement), and then press the keyboard switch numbered “1” followed by the number 10000000.
Page 231: Frequency Readout Accuracy
Measurements Frequency Readout Accuracy The following test can be used to verify that the MS2781B is within its Frequency Readout Accuracy specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-49. Equipment Setup for Frequency Readout Accuracy Test Test Procedure 1.
Page 232 Operation Verification 9. Turn on Marker and perform Marker Peak search. Read the marker frequency and verify that the value is within specifications using the formula below: ± ((marker freq x reference accuracy) + span accuracy + (0.05 x RBW) + (0.5 x last digit)) For technical specifications, refer to the Signature Technical Data Sheet, part number: 11410- 00396, located in Appendix A of the Signature operation manual.
Page 233: Frequency Span Accuracy
Measurements Frequency Span Accuracy The following test can be used to verify that the MS2781B is within its Frequency Span Accuracy specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-50. Equipment Setup for Frequency Span Accuracy Test Test Procedure 1.
Page 234 Operation Verification 12. Use the formula below to verify whether the measured result is within specifications: 13. Repeat steps 7 through 12 for the other combinations of Span and RBW settings listed in Table 5-5. Table 5-5. Frequency Span Accuracy Test Span (Hz) (Hz)
Page 235: Swept Resolution Bandwidth
Measurements Swept Resolution Bandwidth The following test can be used to verify that the MS2781B is within its Swept Resolution Bandwidth Accuracy specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-51. Equipment Setup for Swept Resolution Bandwidth Test Test Procedure 1.
Page 236 Operation Verification 12. Repeat steps 9 through 12 for the other combinations of RBW and Span settings. Table 5-6. Swept Resolution Bandwidth Test Frequency 100 MHz 100 Hz 200 Hz 300 Hz 500 Hz 10 kHz 20 kHz 30 kHz 50 kHz 100 kHz 200 kHz...
Page 237: Single Sideband Phase Noise
Measurements Single Sideband Phase Noise The following test can be used to verify that the MS2781B is within its Single Sideband Phase Noise specifications. A signal source with phase noise performance of at least 10 dB lower than the MS2781B is required for this procedure.
Page 238 Operation Verification 10. On the MS2781B, set Peak to CF and then set Peak to Reference Level. 11. Set the MS2781B to Single Sweep mode, press the Sweep button, and then wait for the 200 sweeps to complete. 12. Turn on Marker 1 and Marker 2. Make Marker 2 as delta marker referenced to Marker 1. 13.
Page 239 Measurements 26. Compute the Calculated Phase Noise for each value in Table 5-8. Table 5-8. Single Sideband Phase Noise Test Measured Carrier Power: Center Offset Frequency Measured 1.001 GHz 1 MHz 1.005 GHz 5 MHz 1.010 GHz 10 MHz 27. Return Optimize Phase Noise to the Auto setting. MS278XB OM Measured Carrier to Calculated Phase Noise...
Page 240: Average Noise Level
Operation Verification Average Noise Level The following test can be used to verify that the MS2781B is within its average noise level specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-53. Equipment Setup for Average Noise Level Test Test Procedure 1.
Page 241 Measurements 5. Press the Sweep button from the Sweep menu and allow averaging to complete. The display should look similar to that below: Figure 5-54. Displaying the Average Noise Level 6. Record the average displayed noise level in Table 5-9 and verify that it meets the specification. 7.
Page 242 Operation Verification Table 5-9. Average Noise Level Test Center Frequency 10 MHz 98 MHz 499 MHz 999 MHz 1499 MHz 2099 MHz 2499 MHz 2899 MHz 3499 MHz 3999 MHz 4499 MHz 5499 MHz 6099 MHz 6699 MHz 7099 MHz 7699 MHz 7999.999995 MHz 5-86...
Page 243: Frequency Response
Measurements Frequency Response The following test can be used to verify that the MS2781B is within its Frequency Response specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-55. Equipment Setup for Frequency Response Test Test Procedure 1.
Page 244 Operation Verification 9. Adjust the MG369XB RF output so that the power meter input B reading is –10 dBm. Record the corresponding power meter input A reading in Table 5-10. Note: Set the Cal Factor on the power meter to match the frequency being measured. 10.
Page 245: Reference Level Switching Uncertainty
Measurements Reference Level Switching Uncertainty The following test can be used to verify that the MS2781B is within its Reference Level Switching Uncertainty specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-56. Equipment Setup for Reference Level Switching Uncertainty Test Test Procedure 1.
Page 246 Operation Verification 10. Subtract the new reading from the marker reading at –70 dBm Reference Level setting. 11. Verify that the deviation is within specifications. 12. Repeat steps 8 to 12 for other Reference Level settings listed in Table 5-11. Table 5-11.
Page 247: Resolution Bandwidth (Rbw) Switching Uncertainty
Measurements Resolution Bandwidth (RBW) Switching Uncertainty The following test can be used to verify that the MS2781B is within its RBW Switching uncertainty specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-57. Equipment Setup for Resolution Bandwidth Switching Uncertainty Test Test Procedure 1.
Page 248 Operation Verification 13. Record the new marker level readout value on the display to the corresponding cell in Table 5-12. 14. Calculate the amplitude deviation by subtracting the new marker value from the 30 kHz RBW marker reading. 15. Verify that the amplitude deviation is 16.
Page 249: Residual Spurious Response
Measurements Residual Spurious Response The following test can be used to verify that the MS2781B meets Residual Spurious Response specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-58. Equipment Setup for Residual Spurious Responses Test Test Procedure 1.
Page 250 Operation Verification Table 5-13. Residual Spurious Response Test Center Frequency (MHz) 1000 2000 3000 4000 5000 6000 7000 8000 5-94 Measured Residual (dBm) Measurements Specifications (dBm) –95 –95 –95 –95 –95 –95 –95 –95 –95 –95 –95 –95 –95 MS278XB OM...
Page 251: Input-Related Spurious Response
Measurements Input-related Spurious Response The following test can be used to verify that the MS2781B meets the Input-related Spurious Response specifications. Test Setup Connect the equipment as shown in the figure below: Figure 5-59. Equipment Setup for Input-related Spurious Response Test Test Procedure 1.
Page 252 Operation Verification 10. Record the maximum Spurious amplitudes in the appropriate column of Table 5-14 based on the frequency offset from the carrier frequency. Note: Any spurs found should be verified not to originate from the signal source. Table 5-14. Input-related Spurious Responses Test Center Source Frequency...
Page 253: Chapter 6 - Software Peripherals
• Microsoft PowerPoint 6-2 Signature–MathWorks Connectivity (Option 40 only) This section describes the general connection and use of the capabilities of Anritsu’s MS2781B Signal Analyzer (Signature) and The MathWorks MATLAB software products provided with Option 40. Anritsu has published an application note, Custom Measurements and Analysis using MATLAB® on Signature™, which offers an in- depth discussion on using Signature and MATLAB for advanced measurement analysis.
Page 254: Preconditions
Signature–MathWorks Connectivity (Option 40 only) 2. Selecting the Target Parameters for Computation: To facilitate usage of external computational tools, Signature provides a list of measurement related parameters as well as acquisition data. For Spectrum type measurements, you may choose from the following parameters to export into the MATLAB environment: •...
Page 255 Software Peripherals 1. Select MATLAB from the Tools drop-down menu or the toolbar icon. This brings up a dialog for configuring what is sent to MATLAB as shown below: Figure 6-1. MATLAB Setup Dialog 2. Toggle the Connect to MATLAB button to On (setup information is always sent when you select Connect to MATLAB and close the dialog).
Page 256: Matlab Control
For in depth descriptions and procedures on how to use the advanced power that MATLAB brings to Signature’s measurement analysis capabilities, refer to the Anritsu application note, “Custom Measurements and Analysis using MATLAB® on Signature™,” PN: 11410-00353 found at the documents area of Anritsu Internet site: http://www.us.anritsu.com...
Page 257: Advanced Matlab Functions
Software Peripherals Advanced MATLAB Functions MATLAB provides advanced data analysis capabilities. The scope of these capabilities is limitless and beyond the intent of this manual to describe; however, Signature ships with a number of example demonstration codes to help get you up and running quickly with MATLAB. These include several plotting routines that automatically update the plot as the Signature measurement trace changes.
Page 258: Microsoft Applications
Microsoft Applications 6-3 Microsoft Applications Microsoft has many popular tools that are used for generating reports. Signature allows you to export data to a variety of these tools, such as: • Microsoft Paint • Microsoft Word • Microsoft Excel • Microsoft Access •...
Page 259: Exporting Trace Data
Software Peripherals Exporting Trace Data Signature allows you to export numerical trace data for further analysis and processing by applications such as Excel and Access.You can easily export trace data by doing the following: Note: You must first ensure that the trace you want to export is the active trace. 1.
Page 260: Importing The Trace Data To Access
Microsoft Applications 3. The data is imported into Excel as shown below: Figure 6-7. Signature Data Imported Into Excel Note: Frequency information must be calculated by using the center frequency and frequency span information, along with the number of samples (501). Importing the Trace Data to Access 1.
Page 261 Software Peripherals 3. Navigate to the directory where you exported the trace data and select: Files of type: Text Files (*.txt, *.csv, *.tab, *.asc). Figure 6-9. Selecting the File Type in Access 4. Follow the Import Text Wizard by choosing the Comma Delimited format and continuing to set the remaining options to your preference.
Page 263: Chapter 7 - Remote Operation
Refer to that product’s documentation for details on its installation and use. 7-2 Remote Desktop With the Remote Desktop feature in Windows XP Professional, you can remotely control the Anritsu Signature Analyzer from another computer. This allows you to use the data, applications, and network resources that are available to your analyzer, without being at the lab.
Page 264: Installing The Client Software
Remote Desktop 2. On the Remote tab, select the “Allow users to connect remotely to this computer” check box, as shown below: Figure 7-1. System Properties Dialog 3. Note the analyzer’s full computer name shown in the dialog box above for use when making the remote connection.
Page 265: Starting A Remote Desktop Session
Remote Operation Starting a Remote Desktop Session Once you have enabled your analyzer to allow remote connections and have installed the client software on a Windows-based client computer, you are ready to start a remote desktop session. You must first establish a virtual private network connection or remote access service connection from your client computer to your office network, or host computer.
Page 266: Advanced Connection Options
Remote Desktop Unless this was changed, you should be able to login using this user name and password. 6. After a successful login, you will see the desktop of Signature and you can remotely perform all of the tasks on the analyzer that you could normally perform locally. Note: While Signature is being remotely controlled, the local screen will blank out and local controls will cease to be effective.
Page 267: Environmental Specifications
Appendix A — Specifications Environmental Specifications The MS278XB environmental specifications are listed below: Table A-1. MS278XB Environmental Specifications Storage Temperature Range: –40 to +75 degrees Celsius Operating Temperature Range: 0 to +50 degrees Celsius (per MIL-PRF-28800F) Relative Humidity (operational): 5% to 95% (per MIL-PRF-28800F) Altitude (operational): 4,600 meters, 43.9 cm Hg Vibration: Sinusoidal 5 Hz to 55 Hz on 3 axes (operational) Random 10 Hz to 500 Hz on 3 axes (non-operational)
Page 269 8PSK ........4-46 About Anritsu Signature Dialog ... . 3-16 About this Manual .
Page 270 Connector Pinout BNC ....... . 3-44 Ethernet ......3-46 GPIB .
Page 271 GPIB Interface Connector ....3-40 Pinout ......3-43 Graph Type Constellation .
Page 272 Markers Active ....4-14, 4-15, 4-16, 4-17 All Off Button ...4-14, 4-15, 4-16, 4-17 CF = Mkr ......4-17 Function .
Page 273 Modulation Capture Time ......4-46 Filtering ......4-46 Format .
Page 274 Roll-off Factor, in ACP Setup ....4-39 Roll-off Factor, in Multicarrier Channel Power Setup 4-42 Roll-off Factor, Modulation ....4-46 Root Nyquist .
Page 275 Trace Menu ......4-23 Trace Mode ......4-24 Average .
Page 276: Anritsu Customer Service Centers
Anritsu Customer Service Centers UNITED STATES ANRITSU COMPANY 490 Jarvis Drive Morgan Hill, CA 95037-2809 Telephone: 1-800-ANRITSU FAX: 408-776-1744 ANRITSU COMPANY 10 New Maple Ave., Unit 305 Pine Brook, NJ 07058 Telephone: 1-800-ANRITSU FAX: 201-575-0092 ANRITSU COMPANY 1155 E. Collins Blvd...

Anritsu Series MS278XB Operation Manual

Chapter 1 - General Information

Chapter 2 - Preparation for Use

Chapter 3 - Instrument Overview

Chapter 4 - Front Panel Menus

Frequency Main Menu

Amplitude Main Menu

Bandwidth Main Menu

Marker Main Menu

Measurement Main Menu

Trace Main Menu

Display Main Menu

Sweep Main Menu

Trigger Main Menu

File Main Menu

MATLAB Setup Dialog

Chapter 5 - Measurements

Chapter 6 - Software Peripherals

Chapter 7 - Remote Operation

Appendix A - Specifications

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Summary of Contents for Anritsu Series MS278XB