Instruction/ maintenance manual of the product MTM400 Tektronix
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User Manual MTM400 MPEG Transport Stream Monitor 071-1224-04 Test Equipment Depot - 800.517.8 431 - 99 Washington Street Mel rose, MA 02176 - FAX 781.665.
MTM400 MPEG Transport Stream Monitor User Manual i Table of Contents General Safety Summary ...................................................................................... vii Service Safety Summary .............................................
Table of Contents ii MTM400 MPEG Transport Stream Monitor User Manual PIDs Screen ......................................................................................................... 3-34 PID Groups Screen ........................................
Table of Contents MTM400 MPEG Transport Stream Monitor User Manual iii Appendices Appendix A: Network Installation ................................................................... A-1 MAC Address ....................................................
Table of Contents iv MTM400 MPEG Transport Stream Monitor User Manual List of Figures Figure 1-1: MTM400 co nnectors (s hown with QPSK interface) ....................................... 1-9 Figure 1-2: Loggi ng on .....................................
Table of Contents MTM400 MPEG Transport Stream Monitor User Manual v Figure 3-25: ATSC SI Ta bles dialog................................................................................ 3-63 Figure 3-26: ISDB-T SI Tables di alog .......................
Table of Contents vi MTM400 MPEG Transport Stream Monitor User Manual List of Tables Table 1-1: Standar d MT M400 deliver ables ....................................................................... 1-2 Table 1-2: MTM400 opt ions (continued) ........
MTM400 MPEG Transport Stream Monitor User Manual vii General Safety Summary Review the following safety precautions to avoid inju ry and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product onl y as specified.
General Safety Summary viii MTM400 MPEG Transport Stream Monitor User Manual Symbols and Terms Terms in this Ma nual . These terms may appear in this manual: WARNING . Warning statements identify conditions or practices that could result i n injury or loss of life.
MTM400 MPEG Transport Stream Monitor User Manual ix Service Safety Summary Only qualified personnel should perfor m service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone .
MTM400 MPEG Transport Stream Monitor User Manual xi Preface This manual describes the functions and use of the Tektronix MTM400 MPEG Transport Stream Monitor. The manual is organized into the follo wing sections: Getting Started An overview of the MTM400, installation instructions, starting the unit, and the remote user interface.
Preface xii MTM400 MPEG Transport Stream Monitor User Manual Related Material Additional documentation, such as Read Me files, may be included on the installation disks.
Preface MTM400 MPEG Transport Stream Monitor User Manual xiii Manual Conventions Naming conventions for the interface elements are based on standard Windows naming conventions. Naming conventions for MPEG-2, ATSC, and DVB structures follow the conventions derived from the standards organizations listed on the previous page.
Getting Started.
MTM400 MPEG Transport Stream Monitor User Manual 1-1 Getting Started This section provides details of installin g and powering up the Tektronix MTM400 MPEG Transport Stream Monitor. Overview The MTM400 is a single-stream, extended-confidence, MPEG-2 protocol, monitoring device.
Getting Started 1-2 MTM400 MPEG Transport Stream Monitor User Manual Accessories The tables in this section list the standard and optional accessories available for the MTM400 MPEG Transport Stream Monitor. Standard Table 1-1 lists the standard accessories that are shipped with the MTM400.
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-3 Table 1-2: M TM400 optio ns (continued) Nomenclature Description Deliverables Opt. QP QPSK (L-Band) Interf ace QPSK Interface Card with associated cabling Opt. CF COFDM Interface COFDM Interface Card with associated cabling Opt.
Getting Started 1-4 MTM400 MPEG Transport Stream Monitor User Manual Field Upgrade Kits Field upgrade kits contain hardware and soft ware that can be installed by a user.
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-5 Licensing Options and upgrades are enabled using a License Key. A License Key is an encrypted code that unlocks and enables f unctions that have been installed on the Real-Time Monitoring (RTM) device.
Getting Started 1-6 MTM400 MPEG Transport Stream Monitor User Manual Table 1-5 (parts 1 and 2) summarizes the available streams options: Table 1-5: M TM400 optio ns summary (part 1 of 2) Feature Def ault * Opt. 01 Recording Capabili ty Opt. 02 SI Analysis Opt.
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-7 Table 1-5: M TM400 optio ns summary (part 2 of 2) Feature Opt . 04 PCR Analysis Opt.
Getting Started 1-8 MTM400 MPEG Transport Stream Monitor User Manual Installing the MTM400 This section describes how to install the MTM400 unit. It includes the following instructions: Installing.
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-9 Electrical Installation The electrical operating requirements of the MTM400 are summarized in Table 1-6; see the MTM400 MPEG Transport Stream Monitor Technical Reference for more detailed electrical characteristics.
Getting Started 1-10 MTM400 MPEG Transport Stream Monitor User Manual Table 1-7 summarizes the transport st ream, network and peripheral device connectors; (see the MTM400 MPEG Transport Stream Monitor Technical Reference for more detailed information about each connector and the associated signals).
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-11 Network Installation The MTM400 is designed to operate in a networked (TCP/IP) environm ent. The network or system administrator may have already configured the TCP/IP parameters (including the network ident ity) for the MTM400.
Getting Started 1-12 MTM400 MPEG Transport Stream Monitor User Manual Installing Font Extensions on Your PC The ARIB specifications for ISDB make use of private extensions to the standard Unicode character set [0xE000-0xF8FF].
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-13 Powering Up the MTM400 After the connections have been made to th e unit, all that is required to power up the MTM400 is to apply power. Connect the power cord to a prope rly grounded outlet.
Getting Started 1-14 MTM400 MPEG Transport Stream Monitor User Manual The Remote User Interface The Remote User Interface (RUI) provides a means of accessing the MTM400 configuration and monitoring features. The RUI can be run on any personal computer (client PC) that meets the minimum specification and has network access to the MTM400 unit.
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-15 The MTM400 splash screen is displaye d overlaid shortly thereafter by the Login Details dialog: Figure 1-2: Log ging on 3. Select the User name (Administrator or User from the drop-down list).
Getting Started 1-16 MTM400 MPEG Transport Stream Monitor User Manual 5. The Hotspot and Stream views are displayed. Figure 1-3: Hots pot view Figure 1-4: Sum mary view The Hotspot view provides access to the device and stream monitoring views of the MTM400 being accessed.
Getting Started MTM400 MPEG Transport Stream Monitor User Manual 1-17 High Level Monit oring The Hot Spot view allows the overall state of the MTM400 device and the stream to be viewed; each hotspot is appropriately labeled. The color of the Hot Spot button indicates the error status of the item to which it is linked (see Color Coding , page 2-11).
Getting Started 1-18 MTM400 MPEG Transport Stream Monitor User Manual.
Operating Basics.
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MTM400 MPEG Transport Stream Monitor User Manual 2-1 Operating Basics This section provides an overview of the basic operation of the system; details and background material are found in the R eference section.
Operating Basics 2-2 MTM400 MPEG Transport Stream Monitor User Manual Local Indicators The MTM400 is an MPEG monitor for use in rem ote situations and does not have a local graphical user interface display. However, a local interface, consisting of four front-panel LEDs, can assure you that the MTM400 unit is functioning.
Operating Basics MTM400 MPEG Transport Stream Monitor User Manual 2-3 Remote User Interface The Remote User Interface (RUI) allo ws you to configure and monitor the MTM400.
Operating Basics 2-4 MTM400 MPEG Transport Stream Monitor User Manual Hot Spot View The Hot Spot view lets you see the overall state of the MTM400 and the stream; each hotspot is appropriately labeled.
Operating Basics MTM400 MPEG Transport Stream Monitor User Manual 2-5 Device View The Device view allows you to monitor and set parameters specific to the MTM400 device itself. The view contains a menu bar with various buttons, and a n information view.
Operating Basics 2-6 MTM400 MPEG Transport Stream Monitor User Manual Stream View The Stream view allows you to monitor a nd set parameters specific to the stream being monitored. As with the Device view, the screen consists of a menu bar with various buttons, and an information view.
Operating Basics MTM400 MPEG Transport Stream Monitor User Manual 2-7 The information takes the form of a seri es of screens; a brief summary of each follows: Summary A dynamic visual overview of the stream and monitoring status. The information is updated at regular intervals.
Operating Basics 2-8 MTM400 MPEG Transport Stream Monitor User Manual PCR Jitter * Displays the following PCR graphs: Inaccuracy, Arrival, Overall Jitter, Frequency Offset, and Drift Rate. (See page 3-48.) SFN Displays the Single Frequency Network (SFN) information when available.
Operating Basics MTM400 MPEG Transport Stream Monitor User Manual 2-9 Device and Strea m View Manipul ation The manipulation of the Device and Streams views is similar.
Operating Basics 2-10 MTM400 MPEG Transport Stream Monitor User Manual Multiple View. Figure 2-7 illustrates the multiple Device view; the Streams view is similar.
Operating Basics MTM400 MPEG Transport Stream Monitor User Manual 2-11 Color Coding In the RUI Hot Spot View, the Device a nd Stream buttons use the color scheme shown in Table 2-1. Table 2-1: Button c olors - Hot Spot views Icon Color Meaning Green Operation normal — no error detected.
Operating Basics 2-12 MTM400 MPEG Transport Stream Monitor User Manual Using WebMSM If you have a system consisting of MTM400 units, you can expand your monitoring capabilities by using the WebMSM Monitoring S ystem Manager. The WebMSM software is effectively an installed version of the RUI.
Operating Basics MTM400 MPEG Transport Stream Monitor User Manual 2-13 Time Zones An inevitable consequence of allowing the RTM device user interface to be accessed across networks is the crossing of time zones. Various features of the user interface display timing information, including the Log files.
Reference.
MTM400 MPEG Transport Stream Monitor User Manual 3-1 Device View The Reference section provides a detailed description of each of the views available in the RUI. The descriptions are given in the order in which they appear in the two primary views: Device and Streams.
Device View 3-2 MTM400 MPEG Transport Stream Monitor User Manual Device Status The Device Status option displays a screen that shows the status of MTM400 device events (as opposed to stream events).
Device View MTM400 MPEG Transport Stream Monitor User Manual 3-3 Typical display elements are descr ibed in the following paragraphs: State A button showing the State of the event. (See Color Coding , page 2-11.) A right-click on the button will open a popup menu that allows you to reset the error or enable/disable the event monitoring.
Device View 3-4 MTM400 MPEG Transport Stream Monitor User Manual View Device Log The Device Log records device-specific events associated with the select ed MTM400. Logged events are displayed in a scrolling list. The Date, Time, Event ID and a description of each event is displayed.
Device View MTM400 MPEG Transport Stream Monitor User Manual 3-5 Using the Log Entry Highlights dialog a llows specific types of entries to be highlighted in a selected color. Select the Event type to be highlighted from the drop-down list adjacent to the Color required; hex values are shown in the event list.
Device View 3-6 MTM400 MPEG Transport Stream Monitor User Manual Time Zone Monitoring devices across time zones may cause some confusion with respect to the timing of events. The displayed times at which log events occurred can be adjusted by making a selection from the Time Zone drop-down list at the top o f the window.
Device View MTM400 MPEG Transport Stream Monitor User Manual 3-7 Set Time… Allows the RTM device time to be set. (See Set Time , page 3-9.) Upload Device Firmware… Allows new firmware to be upl oaded to overwrite the existing device firmware. (See Firmware Upload , page 3-11.
Device View 3-8 MTM400 MPEG Transport Stream Monitor User Manual When the network settings have been changed and set and Close is selected, the following dialog is displayed: For the network settings to take effect, select OK to restart the device. Select Cancel if a restart is not required.
Device View MTM400 MPEG Transport Stream Monitor User Manual 3-9 Set Time You can coordinate the time used by the RTM device and/or the remote user interface. (For a general description of the timing model, see Time Zones , page 2-13.) Three time sources are available to the MTM400 from the Time Source drop-down menu.
Device View 3-10 MTM400 MPEG Transport Stream Monitor User Manual Universal Time) and may be offset to allow for local time variations, for example, British Summer Time = +60 minutes.
Device View MTM400 MPEG Transport Stream Monitor User Manual 3-11 Firmware Upload If new device or interface card firmware is available, this function allows you to upload it to the respective device. The fi rmware filename format is *.hex. Device Firmware Upload.
Device View 3-12 MTM400 MPEG Transport Stream Monitor User Manual 5. Select Close when the process has completed or to terminate the process. Interface C ard Firmw are Upload . NOTE. This feature will only be used for interim updates of the Interface Card Firmware.
Device View MTM400 MPEG Transport Stream Monitor User Manual 3-13 4. Identify the firmware Filename : (either by entering the path and filenam e or using Browse. 5. Select Start to upload the firm ware. Select Close when the process has completed or to terminate the process.
Device View 3-14 MTM400 MPEG Transport Stream Monitor User Manual Upload License A license key is applied to each RTM device to enable functionality. When new or upgraded functions are added, for example as part of a field upgrade, you will receive a new license key with the upgrade kit.
Device View MTM400 MPEG Transport Stream Monitor User Manual 3-15 Device Information The Info view details the software and ha rdware build state of the MTM400.
Device View 3-16 MTM400 MPEG Transport Stream Monitor User Manual SNMP The MTM400 Simple Network Management Protocol (SNMP) agent is a software process that responds to queries using the SNMP to provide status and statistics about the MTM400.
MTM400 MPEG Transport Stream Monitor User Manual 3-17 Stream View The Stream view provides information about the m onitored stream. Figure 3-6: Stream vi ew The title bar displays the Stream Name (configured by the user), and the current view type.
Stream View 3-18 MTM400 MPEG Transport Stream Monitor User Manual Tests Displays the state of the test s applied to the stream. It also allows users with read-write permissions (Administrators) to configure alarms and relays and parameters associated with each test.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-19 SI Graphs * Displays inform ation about re petition rates of SI tables and subtables in graphical format. (See page 3-58.) SI Tables * Displays the SI Information for the stream. (See page 3-62.
Stream View 3-20 MTM400 MPEG Transport Stream Monitor User Manual Monitoring Overview Screen (Summary Screen) This screen provides a dynamic visual overview of the stream and monitoring status.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-21 The lower half of the screen displays an ove rview of the tests applied to the stream. The tests are grouped as follows: First Priority : Lists the first priority tests in DVB, ISDB or ATSC order.
Stream View 3-22 MTM400 MPEG Transport Stream Monitor User Manual Detail Screen This screen provides a dynamic, detail view of the stream PIDs. The information is updated at regular intervals. Figure 3-8: Stream vi ew – Detail The Detail screen button offers three options.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-23 Tests Screen The Tests screen displays the results of tests on the current stream grouped in DVB, ISDB or ATSC priority order. Additional proprietary tests are grouped by function; for example, Bit Rate tests and PID Tests.
Stream View 3-24 MTM400 MPEG Transport Stream Monitor User Manual The alarm output specifications are given in MTM400 MPEG Transport Stream Monitor Technical Reference Manual . Each test can be enabled/disabled by double-clicking the appropriate icon.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-25 Relay (RLY1 to RLY5) Off - ; On - ; Indicates whether a relay will activate when an error occurs. Double-click the icon to toggle its state: enabled or disabled. Five relays are available ( Rly1 , Rly2 , Rly3 , Rly4 and Rly5 ).
Stream View 3-26 MTM400 MPEG Transport Stream Monitor User Manual Custom Screen Figure 3-10: Stream vie w - Custom The Tests and Custom screens provide the same information prioritized in different ways. In the Custom screen, test results for the current stream are grouped in Event Classification order.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-27 Stream Event Classification The Stream Event Classification dialog is opened by selecting the Custom Classifications… button in the Custom view. The dialog box allows the associated Event Classification file to be temporarily modified.
Stream View 3-28 MTM400 MPEG Transport Stream Monitor User Manual Select the Close button to retain the temporary settings and close the dialog. Information Screen The Information screen displays stream events and messages.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-29 Right-click the error LED to set parameters, enable and disable tests and set alarms.
Stream View 3-30 MTM400 MPEG Transport Stream Monitor User Manual Programs Screen The Programs screen provides a quick overview of the program contents of a transport stream. Figure 3-12: Stream View - Pro grams In this view, all the programs detected in the incoming transport stream are displayed.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-31 The view contains the following elements (more detailed descriptions follow): Title Bar The title bar of the screen displays the name of the stream under test (assigned on the Configuration Screen (see page 3-76).
Stream View 3-32 MTM400 MPEG Transport Stream Monitor User Manual Only administrators can adjust bit rate limits. Bit Rates The program bit rate ( Bit Rate ) shows the sum of the individual bit rates for all the PIDs that make up the program.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-33 The maximum and minimum bit rate limits are set in the Limits dialog. Click on the program bar to open the dialog box: Only users logged on as Administrator can adjust bit ra te limits.
Stream View 3-34 MTM400 MPEG Transport Stream Monitor User Manual PIDs Screen The PIDs screen provides an overview of the PIDs contained in a transport stream sorted by program. Figure 3-13: Stre am view - PIDs In this view, all the PIDs detected in th e incoming transport stream are displayed.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-35 Stream Bit Rate : The total bit rate of the stream. Hex Display If enabled, the Transport Stream ID and the PID identities are displayed in hex format. If disabled, they are displayed in decimal format.
Stream View 3-36 MTM400 MPEG Transport Stream Monitor User Manual Double-clicking the icon will disable/enable the event monitoring. Scrambled A key icon is shown adjacent to conditional access tables, for example, EMM/ECM. A padlock icon is shown if the PID is scrambled.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-37 Change Bar The variation of bit rate in each PID is indicated by a Change Bar (except when PID Variability is selected). The ends of the Change Bar show the maximum and minimum values of the bit rate since monitoring started or since the change bars were last reset.
Stream View 3-38 MTM400 MPEG Transport Stream Monitor User Manual The maximum and minimum bit rate limits are set in the Limits dialog. Click on the program bar to open the dialog box: The maximum and minimum values can be set either using the appropriate slider bar or by entering a value in the numeric field.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-39 Adding a User PI D. 1. From the PIDs screen, select User PIDs… . The User PIDs dialog box is displayed. 2. Enter the PID ID in the New PID: field. The PID ID can be entered in either Hex (0xnnnn) or decimal (nnnn) format.
Stream View 3-40 MTM400 MPEG Transport Stream Monitor User Manual Test Selection The Test: drop-down list allows the user to select and apply specific tests to the PIDs in the stream. Tests on those PIDs to which the selected test is not applicable are disabled.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-41 PID Groups Screen PIDs can be grouped together to enable com posite bit rate and test reporting of user-selected PIDs, perhaps carrying simila r information. Up to 32 PID Groups can be formed.
Stream View 3-42 MTM400 MPEG Transport Stream Monitor User Manual Stream Bit Rate: The total bit rate of the stream. Table Each PID Group formed displays a title ba r carrying the allocated nam e of the group.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-43 PID Group Management This section describes how to add, edit, and remove PID Groups. Only an Administrator can add and delete PID Groups. Adding a Ne w PID Group. PID Groups are created in three stages: Identify the PIDs to be grouped.
Stream View 3-44 MTM400 MPEG Transport Stream Monitor User Manual 4. The new PID Group is displayed in the PID Group screen: The new PID Group is empty and must be populated with PIDs.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-45 8. Repeat the previous steps until all the PIDs to be included in the group have been added and are listed. 9. Select Close to close the dialog box. Display will begin immediately, confirming that the PID Group is operational.
Stream View 3-46 MTM400 MPEG Transport Stream Monitor User Manual Editing a PID Group. To add or remove a PID from a PID Group, select PIDs… from the PID Group title bar. Delete removes the PID highlighted in the PIDs: fiel d. The PID is removed from the PIDs: field.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-47 Bit Rate Limits For each PID Group, you can set a minimum ( ) and maximum ( ) bit rate limit.
Stream View 3-48 MTM400 MPEG Transport Stream Monitor User Manual PCR Jitter Screen Real time analysis is performed on PCRs and displayed in graphical format.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-49 The PCR to be displayed can then be selected in the Select PCR PID dialog box. PID numbers are displayed in decimal and hex form. Common Elements Statistical information for each graph is shown at the bottom of each graph.
Stream View 3-50 MTM400 MPEG Transport Stream Monitor User Manual Figure 3-15: Stream view - PCR graph - PCR inaccuracy The MPEG-2, DVB and ATSC standards specify that PCRs must be within ±500 ns of the actual transport rate. By default, the scale is set to ±500 ns.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-51 Figure 3-16 : Stream view - PCR graph - PCR arrival The PCR Arrival graph provides a display of the time interval between successive PCRs, during the last 256 PCRs. The interval is displayed on the y-axis.
Stream View 3-52 MTM400 MPEG Transport Stream Monitor User Manual Figure 3-17: Stream view - PCR graph - PCR overall jitter The Maximum PCR Accuracy Error can be adjusted for all PIDs as follows: Tests screen Î PCR Tests section Î PCR Overall Jitter (PCR_OJ) parameter (right-click) Î Max PCR overall jitter .
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-53 PCR Frequency Offset (PCR_FO) The Frequency Offset graph shows the difference between the program clock frequency and the nominal clock frequency (measured against a reference that is not PCR or transport stream derived).
Stream View 3-54 MTM400 MPEG Transport Stream Monitor User Manual PCR Drift Rate (PCR_DR) This Drift Rate graph shows the rate of change of PCR Frequency Offset, which is often very small.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-55 PTS Arrival The PTS Arrival graph shows the time interval between the successive PTSs.
Stream View 3-56 MTM400 MPEG Transport Stream Monitor User Manual SFN Screen Where Single Frequency Network (SFN) info rmation is included in a stream, it can be viewed by selecting the SFN button. This action will open an SFN Information screen (see Figure 3-21).
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-57 TMCC Screen This screen shows the Transmission a nd Multiplexing Configuration Control (TMCC) content of the stream; it is updated in real time.
Stream View 3-58 MTM400 MPEG Transport Stream Monitor User Manual SI Graphs Screen The SI Graphs screens display informat ion in graphical format about repetition rates of SI tables and subtables.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-59 A brief explanation of each graph type follows: Section Repetition Inter val On a specific PID, this is the interval between the arrival of a section with a specific table_id and the next section with the same table_id.
Stream View 3-60 MTM400 MPEG Transport Stream Monitor User Manual Graph Selection All graphs are selected in the same way: 1. Select the SI Graphs button to display a pop-up m enu from which the graph type can be selected.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-61 2. In the Select dialog, select a table type from the drop-down list. Only those table types for which the graphed information is relevant are available in the list. If the table type is not present in the stream, the message No Graphs is displayed.
Stream View 3-62 MTM400 MPEG Transport Stream Monitor User Manual SI Tables Screen This button displays the SI Tables screen; this shows the transport stream SI/PSI structure. A snapshot of the table structure is built and displayed. The progress bar indicates the progress of the analysis.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-63 The DPI table type may be displayed if the relevant license is displayed. At Start-up, a set of default tables is displayed in the SI Tables view. The list can be changed and modified by selecting the Table List… button and selecting the required Tables.
Stream View 3-64 MTM400 MPEG Transport Stream Monitor User Manual Figure 3-26: ISDB-T SI Tables dialog The selections do not take effect in the SI Tables view until the view is refreshed using the Update button. The speed of the update depends on the network speed, the SI/PSI complexity, and the selected table types.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-65 When displaying a selected table type, if the table contains more than one subtable (for example, the EIT_actual_pf), a single subtable is displayed. Other subtables can be selected from the Subtable drop-down menu and displayed.
Stream View 3-66 MTM400 MPEG Transport Stream Monitor User Manual Similarly, when displaying a subtable, if the subtable contains more than one section, a single section can be selected from the Section drop-down m enu and displayed.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-67 Raw Bytes View Data that cannot be interpreted can be view ed in hex format. Sections that can be viewed in this way will be indicated in the SI Table screen (as shown in the following screen shot).
Stream View 3-68 MTM400 MPEG Transport Stream Monitor User Manual Template Simply monitoring the syntax of a Transport Stream according to TR101 290 is not enough to guarantee that the correct information is being delivered to the viewers' receiver.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-69 Figure 3-28: Stream vi ew - Template The device and stream identities are shown in the title bar.
Stream View 3-70 MTM400 MPEG Transport Stream Monitor User Manual An example of the template section of the configuration file that gave the screen shot shown in Figure 3-28 is given below : <MTM40.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-71 A bullet icon is displayed adjacent to basic components. Selecting the folder icon of an expanded category will collapse the category. XML files can be edited with an XML editor or a text editor (for example, Microsoft Notepad).
Stream View 3-72 MTM400 MPEG Transport Stream Monitor User Manual Log Screen An error event log is maintained for the stream being monitored. Each log has a maximum capacity of 10,000 entries; when full, the oldest entries are dropped t o make room for new entries.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-73 Manipulatin g the Log Display When first opened, the most recent events are displayed at the top of the screen; they are scrolled down as new events appear.
Stream View 3-74 MTM400 MPEG Transport Stream Monitor User Manual Saving the Strea m Log The Stream Log can be saved using the Download Log… button. In the Log Download dialog, select (or enter) a filename and path and select the Start butt on. Select the Close button when the operation has finished or to terminate the process early.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-75 Time Zone The displayed times at which log events occurred can be adjusted by making a selection from the Time Zone drop-down list at the top of the window.
Stream View 3-76 MTM400 MPEG Transport Stream Monitor User Manual Configuration Screen The Stream Configuration sc reen which allows the user to configure various stream settings, triggered recording, and scheduling. The configuration settings available for DVB, ATSC and ISDB differ; each screen is shown below.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-77 Figure 3-31: Stream vi ew - Configurati on (MTM400 ISDB format) Figure 3-32: Stream vi ew - Configurati on (MTM400 ATSC format) Standard Shows the MPEG broadcast standard selected for stream analysis: DVB , ATSC , ISDB or Chinese .
Stream View 3-78 MTM400 MPEG Transport Stream Monitor User Manual Region / Type This selection dictates the way in which regional variations in SI Tables view are interpreted. The available options are: Table 3-2: DV B Regional Options DVB Region Description Std Default setting uses standard DVB interpretation of descriptors.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-79 Virtual Channel Table Mode (ATSC only) A drop-down list from which the Virtual Channel Table Mode can be selected. The options available are shown below: Interface A drop-down list from which the interface to be used for the stream is selected.
Stream View 3-80 MTM400 MPEG Transport Stream Monitor User Manual Maintenance Mode When enabled, no alarms (TTL, re lays or audible) will be raised for the stream. The RTM device will continue to monitor the stream and errors will be logged. The action of enabling and disabling maintenance mode is also recorded in the log.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-81 1 64 t(now) t(-1) t(-63) t(re st) PID1 PID100 Tim e Start time Timespan Count Figure 3-33: Service l ogging - Data stor age The timing resolution should not be set too fast or data may reach the bottom of the grid (t(rest)) before it can be read.
Stream View 3-82 MTM400 MPEG Transport Stream Monitor User Manual Figure 3-34: Stream vi ew - Summary The following settings are available: Consume Entries The data in the service log is not discarded once it is read; this means that more than one RUI may view the data.
Stream View MTM400 MPEG Transport Stream Monitor User Manual 3-83 The timing resolution of counts is controlled b y configuration file parameter PS4 ( Packet Counting Bin Duration ) multiplied by PS6 ( Number of Packet Counting Bins ), typically PS4 * PS6 is set for 1000 ms.
MTM400 MPEG Transport Stream Monitor User Manual 3-85 MTM400 Configuration Files Configuration files provide a means of supplying and storing all s tream-related, user-definable parameters active in an RTM device. Configuration files may be complete, containing all parameters, or pa rtial, containing only those parameters that require changing.
MTM400 Configuration Files 3-86 MTM400 MPEG Transport Stream Monitor User Manual You can modify the active parameters du ring normal operation; these changes will only affect the active configuration. The active configuration is saved in non-volatile RAM as operational changes are made and will be recovered after the unit is reset or powered off.
MTM400 Configuration Files MTM400 MPEG Transport Stream Monitor User Manual 3-87 Storing Active Settings to a Slot The settings currently held in the active c onfiguration can be copied to any storage slot. 1. From the Configuration view, select Store to Slot… .
MTM400 Configuration Files 3-88 MTM400 MPEG Transport Stream Monitor User Manual 3. Locate and select the configuration file or type in a new name; use the Browse… button if necessary. 4. Select Start to download the configuration setting from the selected slot.
MTM400 Configuration Files MTM400 MPEG Transport Stream Monitor User Manual 3-89 Clearing a Slot Slots can be cleared as follows: 1. From the Configuration view, select Clear Slot… . 2. From the list, highlight the slot to be deleted. 3. Select OK .
MTM400 MPEG Transport Stream Monitor User Manual 3-91 Scheduling Configuration schedules allow information held in configuration slots (see page 3-80) to be activated at specified times and days of the week. Schedules operate on a weekly basis. A schedule includes the following information: A schedule name.
Scheduling 3-92 MTM400 MPEG Transport Stream Monitor User Manual The schedule will be specified in a text file using XML. An example of the schedule file format is shown below: <Schedule Name=”<na me>” UTCOffset= ”<offset>”> <!—where <offse t> = Local, o r an offset fro m UTC time e .
Scheduling MTM400 MPEG Transport Stream Monitor User Manual 3-93 Scheduling Activities NOTE. If any changes are made to the configuration from the user interface, a warning message is displayed seeking confirmation of the action. Changes made may affect the configurat ion that is currently loaded by the scheduler.
Scheduling 3-94 MTM400 MPEG Transport Stream Monitor User Manual Uploading a Schedu le A schedule file is uploaded from either the client PC or from a network location: 1. Select Upload Schedule… from the stream Configuration dialog. The Upload Schedule dialog is displayed.
Scheduling MTM400 MPEG Transport Stream Monitor User Manual 3-95 Downloading a Sched ule A schedule file is downloaded from the MTM400 to either the client PC or to a network location: 1. Select Download Schedule… from the stream Configuration dialog.
Scheduling 3-96 MTM400 MPEG Transport Stream Monitor User Manual Scheduling an d Time Zones A schedule consists of a list of schedule items that specify the times when specific configuration slots should be loaded. The schedule attribute ‘UTC Offset’ allows the times to be interpreted in di fferent ways, as described below.
Scheduling MTM400 MPEG Transport Stream Monitor User Manual 3-97 -480 minutes (8hrs before UTC) -420 minutes (7hrs before UTC) -360 minutes (6hrs before UTC) -300 minutes (5hrs before UTC) With Schedu.
MTM400 MPEG Transport Stream Monitor User Manual 3-99 Triggered Recording To examine offline events th at occur in a stream, recordings can be made whose start is triggered by the event itself, manually, or by an alarm. The recording is held in RAM and can be downloaded from the MTM400 to the client PC for storage and further analysis.
Triggered Recording 3-100 MTM400 MPEG Transport Stream Monitor User Manual Triggered Recording Settings The Settings section of the Triggered Recordings dialog is used to set up the trigger event, including the pre-trigger properties and the am ount of memory to be reserved for the recording.
Triggered Recording MTM400 MPEG Transport Stream Monitor User Manual 3-101 Trigger events are flagged in the Tests or Custom view by activating the Rec function associated with the event. In the following screen shot, test numbers 1.2 and 2.3a are set.
Triggered Recording 3-102 MTM400 MPEG Transport Stream Monitor User Manual Desired Recording Packets Two fields which indicate the number of packets (at 204 bytes/packets) that are to be recorded in the reserved memory ( Total Memory Size ) and the amount of memory that will be used.
Triggered Recording MTM400 MPEG Transport Stream Monitor User Manual 3-103 The proportion of pre-trigger data may be less than specified if the trigger event occurred before enough packets were recorded in the circular buffer (particularly after clearing the buffer).
Triggered Recording 3-104 MTM400 MPEG Transport Stream Monitor User Manual Arm Trigger Use this button to set or arm the trigger event set up in the Settings panel. Stop Use this button to disarm the previousl y armed trigger or to stop the current recording.
Triggered Recording MTM400 MPEG Transport Stream Monitor User Manual 3-105 Packets Recorded Displays the number of packets recorded and the amount of memory used. Download… Select and enter the location to which the recorded stream is to be saved. Clear Clears the current recording.
MTM400 MPEG Transport Stream Monitor User Manual 3-107 Interface Configuration and Interpretation This section describes the configuration and interpretation of results of the interface cards that may be installed in the MTM400.
Interface Configuration and Interpretation 3-108 MTM400 MPEG Transport Stream Monitor User Manual To summarize: All cards can be selected and configur ed using the configuration screen (use the Config button). The results and measurements of the in stalled card can be observed using the Input Card button.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-109 QPSK (L-Band) The QPSK (L-Band) Interface option allows you to connect to QPSK equipment operating in the L-Band (950 MHz to 2150 MHz). It will internally I-Q demodulate the signal with its on-board AGC control, Viterbi decoder, and FEC decoder.
Interface Configuration and Interpretation 3-110 MTM400 MPEG Transport Stream Monitor User Manual Configurations Allows you to select from a range of preset L-Band configurations. The configurations are made available by the MTM400 configuration file (see MTM400 Configuration Files , page 3 -85 .
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-111 Symbol Rate (MS/s) Symbol rate value in mega symbols per second. Enter the required value and select Set . Viterbi Rate Auto When enabled, the L-Band adap ter automatically establishes the Viterbi Rate when acquiring Front End Lock.
Interface Configuration and Interpretation 3-112 MTM400 MPEG Transport Stream Monitor User Manual Input Card Screen - QPSK (L-Band) Figure 3-39: In put card screen - QPSK (L-Band)) The constellation d.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-113 EVM (%) (Error Vector Magnitude) Closely related to, and can normally be calculated from, MER. It is a ratio of 'errored signal vectors' to maximum signal amplitude expressed as a percentage (ref: TR 101 290 Annex).
Interface Configuration and Interpretation 3-114 MTM400 MPEG Transport Stream Monitor User Manual QAM (Annex A and Annex C) The QAM Annex A and Annex C interf aces have common settings.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-115 Constellation Provides the option to set the modulation scheme: 4-QAM, 16-QAM, 64-QAM or 256-QAM.
Interface Configuration and Interpretation 3-116 MTM400 MPEG Transport Stream Monitor User Manual Front End Lock If full lock is acquired onto the channel and it is receiving the signal correctly, the Front End Lock (FEL) indicator will light up green.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-117 Clear Points Clears all points from the display grid. Readings MER (dB) (Modulation Error Ratio) Provides a single 'f igure of merit' for received signal.
Interface Configuration and Interpretation 3-118 MTM400 MPEG Transport Stream Monitor User Manual QAM (Annex B II) The QAM (Annex B II) Settings dialog box is shown in Figure 3-42.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-119 Modulation Format : This drop-down list allows 64 QAM or 256 QAM operation to be selected. Note that SCTE07 and ITU-Tj83 annex B specify exact symbol rates for the two modulation formats, so there is no dialogue box to enter the symbol rate separately.
Interface Configuration and Interpretation 3-120 MTM400 MPEG Transport Stream Monitor User Manual Input Card Screen - QAM Annex B II Figure 3-43: Input card screen - QAM A nnex B II (example) Two LED .
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-121 MER and EVM calculations are performed on the constellation data according to the formulas given in ETR290-101. SNR after equalizer This graph represents the signa l-to-noise ratio over time, typically over 256 seconds.
Interface Configuration and Interpretation 3-122 MTM400 MPEG Transport Stream Monitor User Manual COFDM The COFDM (Coded Orthogonal Frequency Division Multiplexing) Settings dialog box is shown in Figure 3-44.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-123 Receiver Mode : In order to achieve high accuracy measurements, particularly for MER and SNR measurements, the COFDM IF card supports two modes of operation.
Interface Configuration and Interpretation 3-124 MTM400 MPEG Transport Stream Monitor User Manual BER (Pre-Viterbi) This indicator reads the BER in the channel, before any error correction is applied.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-125 The following graphs are available when the COFDM interface card is installed: RF constellation (all data carriers) When the receiver is in RF lock, the constellation points are displayed.
Interface Configuration and Interpretation 3-126 MTM400 MPEG Transport Stream Monitor User Manual 8VSB The 8VSB (Vestigial Sideband) Settings dialog box is shown in the following screenshot: Configura.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-127 IF Spectrum This can be set to Normal or Inverse , to allow for frequency conversions in the signal chain. Conversions that use difference frequencies invert the spectrum; additive conversions do not.
Interface Configuration and Interpretation 3-128 MTM400 MPEG Transport Stream Monitor User Manual Input Card Sc reen - 8VSB One LED indicator is available in the Readings section of the screen: RF Lock This indicates that all decoding systems are in lock and the signal is being decoded normally.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-129 Equalizer The equalizer coefficients are plotted across the graph display. The display illustrates the presence of multi-path echoes by indicating how the equalizer is adjusting to cancel them out.
Interface Configuration and Interpretation 3-130 MTM400 MPEG Transport Stream Monitor User Manual Configurations : This dialog box provides an option to recall a number of settings configuration files; for example, prestored transponder parameters. The configuration files are created and stored in the MTM400.
Interface Configuration and Interpretation MTM400 MPEG Transport Stream Monitor User Manual 3-131 Input Card Sc reen - 8PSK The following LES indicators are available in the Readings section of the screen: RF Lock Indicates when the RF reciver sections are in lock and receiving normally.
Interface Configuration and Interpretation 3-132 MTM400 MPEG Transport Stream Monitor User Manual SMPTE310 Settings There are no user settings associated with the SMPTE (Society of Motion Picture and Television Engineers) interface. (Refer to the MTM400 MPEG Transport Stream Monitor Technical Reference for more details about the SMPTE interface.
Appendices.
MTM400 MPEG Transport Stream Monitor User Manual A-1 Appendix A: Network Installation A major feature of the MTM400 MPEG Transport Stream Monitor is its versatility with respect to configuration. Although always operating within a client-server architecture, the following configuration options are available: The MTM400 can be left unattended.
Appendix A: Network Installation A-2 MTM400 MPEG Transport Stream Monitor User Manual The WebMSM software is installed on a client PC and allows the user to monitor and control the MTM400. The WebMSM can be used to monitor all compatible devices on a network (if the appropriate license is held).
Appendix A: Network Installation MTM400 MPEG Transport Stream Monitor User Manual A-3 IP Address An IP address is assigned to each unit and acts as a unique identifier within a network.
Appendix A: Network Installation A-4 MTM400 MPEG Transport Stream Monitor User Manual Resetting the IP Address us ing the User Interf ace With the unit powered up and connected to the network in which its current IP address is recognized: 1. Open the user interface, logging on as Administrator.
Appendix A: Network Installation MTM400 MPEG Transport Stream Monitor User Manual A-5 If necessary, obtain the Gateway and Subnet Mask values from the Network Administrator. 4. When the settings have been changed and set and Close is selected, the following dialog is displayed: Select OK to restart the device and for the settings to take effect.
Appendix A: Network Installation A-6 MTM400 MPEG Transport Stream Monitor User Manual Removing the Cover The unit cover is held in position by 21 x T10 Torx screws. 1. Remove and retain the 21 cover retaining screws. 2. Lift the cover from the unit. Resetting the Non-Volatile RAM Locate and press the Non-Volatile RAM Reset switch (SW111).
Appendix A: Network Installation MTM400 MPEG Transport Stream Monitor User Manual A-7 Replacing the Cov er 1. Before replacing the cover, ensure that all components are in place and that all connections are secure. 2. Replace the 21 cover retaining screws and ensure that they are uniformly tightened.
Appendix A: Network Installation A-8 MTM400 MPEG Transport Stream Monitor User Manual The IP set-up is now complete. Close the MS-DOS window. With the IP Address successfully set up, the network settings can be completed (refer to Resetting the IP Address using the User Interface , page A-4).
MTM400 MPEG Transport Stream Monitor User Manual B-1 Appendix B: Maintenance This appendix describes some general care and service procedures for the MTM400 MPEG Transport Stream Monitor and includes the following subsections: Preventive Maintenance provides cleaning instructions.
Appendix B: Maintenance B-2 MTM400 MPEG Transport Stream Monitor User Manual Rack Mounting CAUTION . Efficient cooling will be maintained in a rack-mounted unit if the air temperature at all intake air vents (i nside the rack) does not exceed 40 ºC. WARNING .
Appendix B: Maintenance MTM400 MPEG Transport Stream Monitor User Manual B-3 Figure B-2: Rack mou nted sections The chassis section is already installed on the unit. The position of the rear rack mounting can be adjusted to suit the depth of the rack.
Appendix B: Maintenance B-4 MTM400 MPEG Transport Stream Monitor User Manual Removing the MT M400 Unit Refer to Figure B-3 to remove the unit from the rack. 1. Loosen the front panel retaining screw and pull the unit out until the stop latches snap into the holes.
Glossary.
MTM400 MPEG Transport Stream Monitor User Manual Glossary -1 Glossary Program and Service : In this manual the terms program and service are interchangeable.
Glossary Glossary -2 MTM400 MPEG Transport Stream Monitor User Manual NIT Network Information Table PAT Program Association Table PCI Peripheral Com ponent Interconnect PCR Program Clock Reference PID.
Index.
MTM400 MPEG Transport Stream Monitor User Manual Index-1 Index 8 8PSK, 3-129 8VSB, 3-126 A alarms, 3-24, 3-28 B bit rate Programs screen, 3-32 bit rate limits PID Groups screen , 3- 47 PIDs screen, 3-.
Index Index-2 MTM400 MPEG Transport Stream Monitor User Manual installation electrical, 1-9 hardware, 1- 8 network, 1 -11 interface 8PSK, 3-129 8VSB, 3-126 COFDM, 3-12 2 configurati o n , 3- 1 07 inte.
Index MTM400 MPEG Transport Stream Monitor User Manual Index-3 Programs screen view bit rate, 3-32 PTS Arrival graph, 3-55 Q QAM (Annex A), 3-114 QAM (Annex B), 3-118 QAM (Annex C), 3-114 QPSK (L-Band.
Index Index-4 MTM400 MPEG Transport Stream Monitor User Manual Triggered Recording, 3-99 operation, 3- 103 pre-trig ger , 3- 1 02 set, 3-25 set up, 3-1 00 TTL output, 3-24 U User PIDs add, 3-39 delete.
An important point after buying a device Tektronix MTM400 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Tektronix MTM400 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Tektronix MTM400 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Tektronix MTM400 you will learn all the available features of the product, as well as information on its operation. The information that you get Tektronix MTM400 will certainly help you make a decision on the purchase.
If you already are a holder of Tektronix MTM400, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Tektronix MTM400.
However, one of the most important roles played by the user manual is to help in solving problems with Tektronix MTM400. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Tektronix MTM400 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
