Tektronix MTM400A Technical Reference

Text of Tektronix MTM400A User Guide:

• Tektronix MTM400A, RUI Overview 1-6 MTM400A MPEG Transport Stream Monitor Technical Reference Customizing the Button Bar. To customize the button bar for your monitoring requirements, select Customize from the top of the button bar or from the button bar context menu to open the Customize Button Bar dialog box (see Figure 1--4). The Device and Monitoring buttons are always shown. Other buttons can be permanently shown, permanently hidden, or automatically hidden when the function or feature is not available. Select the option from the drop-down list that is available whe

• Tektronix MTM400A, Stream Configuration MTM400A MPEG Transport Stream Monitor Technical Reference 3-15 Correctly prepared configuration files can be uploaded to a slot. 1. On the Slot Management page, highlight the slot to receive the uploaded configuration file and click Upload. 2. In the Open dialog box, locate and select the configuration file to be uploaded or type in the path and name (*.xml). 3. Select Open to upload the configuration file into the selected slot. If the file is incorrectly formatted, the operation will fail and a message will be displayed. Slots can be cleared as

• Tektronix MTM400A, MTM400A MPEG Transport Stream Monitor Technical Reference 3-23 Device Configuration The Device section of the Configuration dialog box includes the following pages: Passwords, Network Settings, and Time Settings. Each page can be accessed by selecting the relevant node in the tree view. The Device configuration page (see Figure 3--14) can be accessed using Configuration (toolbar) >Device. Figure 3- 14: Device global configuration page Device Global Settings Select Device in the tree view to access the Device configuration global settings. The product name is identified as MTM400A. The device name

• Tektronix MTM400A, MTM400A MPEG Transport Stream Monitor Technical Reference 5-1 Maintenance This appendix describes some general care and service procedures for the MTM400A monitor. Preventative Maintenance Protect the unit from adverse weather conditions. The unit is not waterproof. WARNING. To avoid damage to the instrument, do not expose it to sprays, liquids or solvents. Do not use chemical cleaning agents; they may damage the instrument. Avoid chemicals that contain benzene, toluene, xylene, acetone or similar solvents. Preventive maintenance mainly consists of periodic cleaning. The unit should be cleaned as nee

• Tektronix MTM400A, Interface Card Configuration MTM400A MPEG Transport Stream Monitor Technical Reference 3-47 QAM (Annex B2) Settings The following configuration settings are available for the QAM (Annex B2) interface card: Preset Name. The name allocated to a preset interface configuration setup. Tuner Frequency (kHz). This value, set in kHz units, is the center frequency of the channel to be received. Any frequency can be entered. There is no need to follow a channel plan. The frequency resolution is determined by the tuner step size of 62.5 kHz. Modulation Format. This drop-down list allows 64 QAM or 256

• Tektronix MTM400A, MTM400A MPEG Transport Stream Monitor Technical Reference 2-21 Tests View The Tests view displays test information relevant to the transport stream being analyzed. The view is displayed when the Tests button is selected in the button bar or when the Tests tab is selected in the tree view (see Figure 2--9). Figure 2- 9: Tests view The view displays a test tree that represents all the tests that have been applied to the analyzed transport stream. Figure 2--10 shows the nodes available in the navigation view.

• Tektronix MTM400A, Chart Views and Bit Rates 4-10 MTM400A MPEG Transport Stream Monitor Technical Reference Historical Multiplex Graph You can display trend graphs of the programs in the transport stream using the historical multiplex icon. This graph displays stacked program bit rates over a period that you have selected from the Time period drop-down list. Figure 4- 9: Historical multiplex graph

• SI/PSI (Tables) View 2-30 MTM400A MPEG Transport Stream Monitor Technical Reference Figure 2- 18: Section payload If the section is corrupt or empty, the hexadecimal view background is red instead of blue. The view is continually updated. Updating can be paused, to allow you to examine specific details. Pause table section updating Resume table section updating

• Tektronix MTM400A, MTM400A MPEG Transport Stream Monitor Technical Reference 3-31 Preferences Configuration The Preferences section of the Configuration dialog box includes the following page: Fonts. The page can be accessed by selecting the relevant node in the tree view. The Preferences configuration page (see Figure 3--19) can be accessed using Configuration (toolbar) > Preferences. Figure 3- 19: Preferences configuration page

• Tektronix MTM400A, SI/PSI (Tables) View 2-32 MTM400A MPEG Transport Stream Monitor Technical Reference Display time zone Display range Start time Title bar Time scale Service/Subtable panel Event panel Event detail panel Figure 2- 19: EPG Summary view (tear-off view) The following screen elements are highlighted in Figure 2--19: Title Bar. Displays the title of the currently highlighted service or transport stream. DIsplayed Time Zone. Select the required time zone from the drop-down list. The time scale will change accordingly. The time zone may be deriv

• Tektronix MTM400A, Table of Contents ii MTM400A MPEG Transport Stream Monitor Technical Reference Configuration Stream Configuration 3--1...................................... Stream Global Set tings 3--2............................................ Recording Settings 3-- 4............................................... Test Parameters 3 --9.................................................. PCR Filters 3--10..................................................... Slot Management 3--12................................................ Schedule Management 3--16............................................ Device Configuration 3--23...................................

• Tektronix MTM400A, Tests View MTM400A MPEG Transport Stream Monitor Technical Reference 2-23 collects these all in one place and allows their recording in the stream log to be enabled or disabled. This screen also shows errors that have been generated by all IP sessions when a Gigabit Ethernet interface is fitted. The messages to be displayed are set at the factory; interface cards can also generate messages. Alarm and trigger actions can be set on all tests using the context menus. In addition to the alarms and triggers, message recording in the s

• Tektronix MTM400A, Interface V iew MTM400A MPEG Transport Stream Monitor Technical Reference 2-45 IP Errored Count. (Packets) Total IP packet error count since the last reset. The count is maintained per session on the interface card, so the count that is presented w hen a stream is selected is since reset or startup, not since the session was s elected. The field displays a red background if the count is greater than zero. NOTE.TheTS CC Error count may not equal the count shown in the Analysis Tests view, for example TR101 290, test 1.4, Continuity. The interface card starts counting before the MTM400 processor card, and will continue to count per ses

• Device Configuration MTM400A MPEG Transport Stream Monitor Technical Reference 3-29 When Real Time Clock is selected from the Time Source drop-down list, the RTM device can be synchronized to local PC time by clicking Sync with Local. Any offset required (for a different time zone) is entered in the UTC to Time Zone Offset field in minutes (range: ±12 hours) and activated us

• Interface Card Configuration 3-36 MTM400A MPEG Transport Stream Monitor Technical Reference Configuring an Interface Card To configure an interface card and to store the settings as a preset, perform the following steps: NOTE. The following procedure uses a COFDM interface card as an example. The process for configuring all interface cards is similar. 1. Click Interface in t

• Tektronix MTM400A, Stream Configuration 3-8 MTM400A MPEG Transport Stream Monitor Technical Reference The Recording Status area of the R ecording Settings page is used to set up and control the recording status. Arm / Record. Arm the trigger (and wait for trigger event to occur) or start a manual recording. Arm starts recording in the pretrigger buffer, so that when the recording trigger is activated the pretrigger conditions are met. Trigger State shows the current state of the trigger: Idle, Waiting for trigger. Trigger Time. Displays the time that the trigger event occurred. You can select the time zone in which trig

• Tektronix MTM400A, Device Configuration 3-28 MTM400A MPEG Transport Stream Monitor Technical Reference The Time Settings configuration page (see Figure 3--18) can be accessed using Configuration (toolbar) > Device > Time Settings. Figure 3- 18: Time Settings configuration page Three time sources are available to the MTM400A monitor from the Time Source drop-down menu: H Real Time Clock. The MTM400A monitor internal clock. H Longitudinal Time Clock. An analog-format time clock often available from a centralized source. H Simple Network Time Protocol. A UTC-synchronized time clock available over the internet. The ap

• Tektronix MTM400A, Table of Contents MTM400A MPEG Transport Stream Monitor Technical Reference vii List of Tables Table i: Product documentation xiii............................. Table 1--1: Menu options 1--3................................... Table 1--2: Toolbar controls 1--4................................. Table 1--3: Status b ar controls 1--10............................... Table 2--1: Programs view n odes 2--4............................. Table 2--2: Timing measurement graphs 2-- 18...................... Table 2--3: Color coding - Errors and Warnings 2--23................ Table 2--4: GigE Traffic view c

• Tektronix MTM400A, Interface Card Configuration 3-44 MTM400A MPEG Transport Stream Monitor Technical Reference QPSK (L -Band) Settings The following configuration settings are available for the QPSK (L-Band) interface card: Preset Name. The name allocated to a preset interface configuration setup. Local Oscillator Frequency (GHz). The Local Oscillator (LO) frequency of the Low Noise Block (LNB) is dependent on the transponder frequency and must be such that the difference falls within the input range of the receiver. Typically, these values are 10.6 GHz (Hi-Band) and 9.75 GHz (Lo-Band) when converting from KU band. The values are 5.7

• Tektronix MTM400A, RUI Overview 1-4 MTM400A MPEG Transport Stream Monitor Technical Reference Table 1--2 describes the toolbar controls shown in Figure 1--2. 1 432 65 7 8 Figure 1- 2: Toolbar controls Table 1- 2: Toolbar controls Figure 1- 2 item Control nam e Description 1 Hide/Show button bar Hide or show the button bar. 2 Previous/Next Move to the previous/next view in the viewing history. 3 Connect Opens the Connect to MTM Device dialog box that you can use to reconnect to the current MTM400A monitor or to connect to a different MTM400A monitor

• Tektronix MTM400A, MTM400A MPEG Transport Stream Monitor Technical Reference 2-39 Packets View The Packets view displays SFN data when available in DVB mode, and information packets (IIPs) and TMCC data in ISDB-T mode. Figure 2--24 shows an example of the IIP view in an ISDB-T transport stream. Figure 2- 24: Packets view - ISDB- T, IIP detail exam ple

• Tektronix MTM400A, Chart Views and Bit Rates MTM400A MPEG Transport Stream Monitor Technical Reference 4-9 Pie Charts The pie chart shows similar information as the bar chart. Figure 4- 8: Pie chart The pie chart view is divided into two panes. The left pane shows the pie chart, and the right pane provides a list of the component programs. Each program is color-coded. Related information given includes the overall program status (icon), the program name and number, and the bit rate (bps). The bit rate expressed as a percentage

• Interface Card Configuration MTM400A MPEG Transport Stream Monitor Technical Reference 3-39 H ASI Smoothing. Select On/Off to enable/disable ASI smoothing. If a network problem occurs so that ASI smoothing cannot be performed properly, this setting will automatically be set to off. H ARP. (Address Resolution Protocol) A TCP/IP protocol for determining the hard

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