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Tektronix MTS415 Technical Reference

Mpeg test systems
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Download this manual See also: User Manual
Technical Reference
MTS400 Series
MPEG Test Systems
Specifications and Performance Verification
077-0207-00
This document applies to firmware version 1.7
and above.
Warning
The servicing instructions are for use by qualified
personnel only. To avoid personal injury, do not
perform any servicing unless you are qualified to
do so. Refer to all safety summaries prior to
performing service.
www.tektronix.com

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Summary of Contents for Tektronix MTS415

  • Page 1 This document applies to firmware version 1.7 and above. Warning The servicing instructions are for use by qualified personnel only. To avoid personal injury, do not perform any servicing unless you are qualified to do so. Refer to all safety summaries prior to performing service. www.tektronix.com...
  • Page 2 Copyright © Tektronix. All rights reserved. Licensed software products are owned by Tektronix or its subsidiaries or suppliers, and are protected by national copyright laws and international treaty provisions. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material.
  • Page 3 Table of Contents General Safety Summary ......... . Service Safety Summary .

  • Page 4: Table Of Contents

    Table of Contents List of Figures Figure 2−1: Cable connections on the MTS400 Series system ... . . 2−3 Figure 2−2: Clock settings dialog box ....... . 2−4 Figure 2−3: PCR Initial Value settings dialog box .
  • Page 5 General Safety Summary Review the following safety precautions to avoid injury and prevent damage to this product or any products connected to it. To avoid potential hazards, use this product only as specified. Only qualified personnel should perform service procedures. While using this product, you may need to access other parts of the system.
  • Page 6 General Safety Summary Do Not Operate in an Explosive Atmosphere. Keep Product Surfaces Clean and Dry. Provide Proper Ventilation. Refer to the manual’s installation instructions for details on installing the product so it has proper ventilation. Terms in this Manual. These terms may appear in this manual: Symbols and Terms WARNING.
  • Page 7 Service Safety Summary Only qualified personnel should perform service procedures. Read this Service Safety Summary and the General Safety Summary before performing any service procedures. Do Not Service Alone. Do not perform internal service or adjustments of this product unless another person capable of rendering first aid and resuscitation is present.
  • Page 8 Service Safety Summary Version 00b MTS400 Series Performance Verification and Specifications Technical Reference...

  • Page 9: Table I: Mts400 Series Product Documentation

    This manual lists the electrical, mechanical, and environmental specifications, and the certification and compliance statements for the Tektronix MTS400 Series MPEG Test Systems instruments, covering both the MTS415 and MTS430 test systems. Also provided are procedures for verifying the performance of the test systems.
  • Page 10 Preface Version 00b MTS400 Series Performance Verification and Specifications Technical Reference viii...
  • Page 11 All specifications are guaranteed unless labeled “typical.” Typical specifications are provided for your convenience but are not guaranteed. Unless otherwise stated, all specifications apply to both the MTS415 and MTS430 MPEG Test Systems. To meet specifications, the following conditions must be met: H The system must have been calibrated/adjusted in an ambient temperature between 20 °C and 30 °C (68 °F and 86 °F).

  • Page 12: Table 1−1: Platform Characteristics

    Specifications Electrical Specifications The following tables list the published specifications for the MTS400 Series MPEG Test Systems. Table 1−1 lists the general characteristics of the MTS400 Series platform. Platform Characteristics Table 1−1: Platform characteristics Characteristic Description Operating system Microsoft Windows XP Professional with Service Pack 2 Processor P4, 2.8 GHz...
  • Page 13 Specifications Table 1−1: Platform characteristics (Cont.) Characteristic Description Keyboard port Mini DIN, PS-2, one on the rear panel and one on the left front side panel; not hot pluggable Mouse port Mini DIN, PS-2; one on the rear panel and one on the left front side panel;...

  • Page 14: Table 1−2: A11 And A12 Main Mpeg I/O Card Electrical Characteristics

    Specifications The electrical characteristics listed in Table 1−2 apply to both the A11 and A12 A11 and A12 Main MPEG Main MPEG I/O cards. I/O Card Characteristics Table 1−2: A11 and A12 Main MPEG I/O card electrical characteristics Characteristic Description Internal reference clock This clock is used for the following functions: output clock, PCR/PTS/DTS timing, packet...
  • Page 15 Specifications Table 1−2: A11 and A12 Main MPEG I/O card electrical characteristics (Cont.) Characteristic Description Output data rate 250 kbps minimum, 214 Mbps maximum P/N and jitter (serial clock) <−104 dBc/Hz, RBW = 300 Hz, @21.455707 MHz + 20 kHz DVB−SPI Interface Input/output configuration Output only...

  • Page 16: Table 1−3: A170 Lvds/Asi/Smpte310M Interface Card Electrical Characteristics

    Specifications Table 1−3 lists the electrical characteristics of the A170 LVDS/ASI/ A170 SMPTE310M Interface card. LVDS/ASI/SMPTE310M Interface Card Table 1−3: A170 LVDS/ASI/SMPTE310M Interface card electrical characteristics Characteristic Description Internal reference clock, typical 27 MHz "1 ppm when manufactured Frequency "0.5 ppm per year Stability "1 ppm over temperature range ASI interface...
  • Page 17 Specifications Table 1−3: A170 LVDS/ASI/SMPTE310M Interface card electrical characteristics (Cont.) Characteristic Description Output 75 W transformer coupled Output impedance 800 mV "10% into 75 W load Voltage Jitter, typical <2 ns p-p logic 0 rising edge when triggered on negative edge (EN50083-9.1998 Figure A.4) <1.4 ns p-p logic 1 rising edge when triggered on negative edge (EN50083-9.1998 Figure A.5) 0.4 ns v X v 5 ns, 20% to 80%...

  • Page 18: Table 1−4: Qpsk/8Psk Interface Card Electrical Characteristics With A Qpsk Input

    Specifications Tables 1−4 and 1−5 list electrical characteristics of the QPSK/8PSK card. QPSK/8PSK Card Characteristics Table 1−4: QPSK/8PSK interface card electrical characteristics with a QPSK input Characteristic Description Input frequency range 950 MHz to 2150 MHz with 1 MHz step size −6 Input signal amplitude range −60 dBm to −30 dBm for a CBER of <1e...

  • Page 19: Table 1−6: 8Psk And Qpsk Measurements

    Specifications Table 1−5: QPSK/8PSK interface card electrical characteristics with an 8PSK input (Cont.) Characteristic Description Input return loss 4 dB min, 950 MHz to 2050 MHz Selectable; 13.0 V "1.5 V or 18.0 V "1.5 V, with LNB supply voltage 100 W, 5 watt resistor load LNB supply maximum current 200 mA maximum...

  • Page 20: Table 1−7: Cofdm Interface Card Electrical Characteristics

    Specifications Table 1−7 lists electrical characteristics for the COFDM interface card. COFDM Card Characteristics Table 1−7: COFDM interface card electrical characteristics Characteristic Description Input frequency range 50 MHz to 858 MHz (to include low VHF) Input signal amplitude range The receiver delivers QEF (Quasi Error Free) operation over the following signal power ranges: QPSK (4QAM): −85 dBm to −15 dBm (24 dBuV to 94 dBuV)

  • Page 21: Table 1−8: Cofdm Measurements

    Specifications Table 1−8 lists the electrical characteristics for the COFDM measurements. COFDM Card Measurements Table 1−8: COFDM measurements Characteristic Description Overall receiver lock status Overall receiver lock status is indicated by an LED on the rear panel Transmission coding parameters The receiver reports the current status of the following transmission parameters: −...
  • Page 22 Specifications Table 1−8: COFDM measurements (Cont.) Characteristic Description EVM (Error Vector Magnitude) Display Range: v 1% to w 30% rms, for QPSK v 1% to w 20% rms, 16QAM v 1% to w 8.5% rms, 64QAM Resolution: 0.1% Accuracy: 1% (1 EVM unit), and an additional "20% of the reading MER (Modulation Error Ratio) with an Both MER Peak and MER Average are displayed as...

  • Page 23: Table 1−9: 8Vsb Board Electrical Characteristics

    Specifications Table 1−9 lists the electrical characteristics for the 8VSB card. 8VSB Card Characteristics Table 1−9: 8VSB board electrical characteristics Characteristic Description Input frequency range 54 MHz to 860 MHz, VHF/UHF channels 2 to 69 (to include low VHF frequencies) −72 dBm to −6 dBm (−23 dBmV to )43 dBmV) Input signal level w −50 dBm to ensure compliance to IEC 61000-4-3...

  • Page 24: Table 1−11: Qam Annex B Board Characteristics

    Specifications Table 1−10: 8VSB measurements (Cont.) Characteristic Description Pre-RS BER, SER 1 second and 10 seconds windows values are displayed TEF (Transport Error Flag) Transport Error Flags (uncorrectable error count) in a 1 second window and 10 second window are displayed Constellation diagram The 8VSB constellation diagram is a display of I-data...

  • Page 25: Table 1−12: Qam Annex B Measurements

    Specifications Table 1−11: QAM Annex B board characteristics (Cont.) Characteristic Description Input return loss 5 dB minimum w37 dB with an equalizer Ultimate Modulation Error Ratio with equalizer Table 1−12 lists electrical characteristics for the QAM Annex B measurements. QAM Annex B Measurements Table 1−12: QAM Annex B measurements Characteristic...

  • Page 26: Table 1−13: Video Over Ip Board - Ethernet Electrical Port

    Total jitter (peak-to-peak) w9.0 dBm Extinction ratio Ethernet Optical Receiver - Single mode 1550 nm using Tektronix supplied SFP module −12 Optical input power −26 dBm to −3 dBm, BER 1 X 10 1270 nm = λ = 1610 nm...

  • Page 27: Table 1−15: Ac Power Source Electrical Characteristics

    Total jitter (peak-to-peak) w9.0 dBm Extinction ratio Ethernet Optical Receiver - Single mode 1310 nm using Tektronix supplied SFP module −12 Optical input power −19 dBm to −3 dBm, BER 1 X 10 1270 nm = λ = 1610 nm...

  • Page 28: Table 1−16: Mechanical Characteristics

    Specifications Mechanical Characteristics Table 1−16 lists the mechanical characteristics of the MTS400 Series platform. Table 1−16: Mechanical characteristics Characteristic Description Classification Fixed location benchtop Cooling airflow Intake is from the front and sides of the instrument. Exhaust is to the bottom and rear of the instrument. For proper cooling, at least two inches (5.1 cm) of clearance is needed on the rear and sides of the instrument cabinet...

  • Page 29: Table 1−17: Environmental Characteristics

    Functional shock, non-operating 20 g, 11 ms half-sine Transportation package material Transportation package material meets recycling criteria as described in Environmental Guidelines for Package Design (Tektronix part number 063-1290-xx) and Environmentally Responsible Packaging Handbook (Tektronix part number 063-1302-xx) Version 00b MTS400 Series Performance Verification and Specifications Technical Reference 1−19...
  • Page 30 Specifications Version 00b MTS400 Series Performance Verification and Specifications Technical Reference 1−20...

  • Page 31: Preparation

    You will need the following equipment to perform the verification procedures: Required Equipment H 75 W BNC-to-BNC cable (quantity of one) Tektronix part number 174-4954-00 H DB25-to-DB25 cable (quantity of one) Tektronix part number 174-4955-00 H A copy of the “sym1.mpg” transport stream file on the E:\ drive of the MTS400 Series system being tested NOTE.
  • Page 32 Performance Verification Perform the following steps to prepare the instrument to be tested: Preparing the Instrument 1. Make sure the dongle is securely installed on the parallel port. 2. Connect the keyboard and mouse to the appropriate side panel or rear panel connectors.

  • Page 33: Figure 2−1: Cable Connections On The Mts400 Series System

    Performance Verification Figure 2−1: Cable connections on the MTS400 Series system Verification Procedures Perform the following steps to verify that the MTS400 Series system is operating properly. The steps are written with the assumption that you are performing all of the steps in order.

  • Page 34: Figure 2−2: Clock Settings Dialog Box

    Performance Verification NOTE. In the SPI/ASI/310M menu, you do not need to change the Through Out setting. 4. Use the File menu to select the transport stream file to play: a. Click Open and locate the file sym1.mpg (E:\ drive). b.

  • Page 35: Figure 2−3: Pcr Initial Value Settings Dialog Box

    Performance Verification 9. In the Play menu, click PCR Initial Value to open the dialog box shown in Figure 2−3. a. Enter 0 in the Base Value entry box. b. Enter 0 in the Extension Value entry box. c. Click OK to close the PCR Initial Value dialog box. Figure 2−3: PCR Initial Value settings dialog box 10.

  • Page 36: Figure 2−4: Others Settings Dialog Box And Select Update Item Settings Dialog Box

    Performance Verification 13. In the Play menu, click Other to open the Others dialog box shown in Figure 2−4. a. Use the Standard drop-down list to select DVB. b. Use the Numeric drop-down list to select Hex. c. Select the SPI Output Enable check box. The Ext Play Start setting does not matter.

  • Page 37: Figure 2−5: Select Asi Interface

    Performance Verification 15. In the MPEG Player toolbar, click the green Play arrow to start playing the transport stream file. 16. In the TSCA window, close any dialog boxes and select Standard from the toolbar. 17. Make the following setting changes in the Standard dialog box. a.

  • Page 38: Figure 2−6: Asi Interface Analysis Results

    Performance Verification 22. Verify the following in the analyzer window: H The TS Availability and Sync indicators at the bottom left of the analyzer window are green. H The bit rate readout at the bottom of the window reads 41.471 Mbps. NOTE.

  • Page 39: Figure 2−7: Record Settings Dialog Box

    Performance Verification 23. In the Record menu of the TSCA, click Record Settings to open the dialog Verifying the MPEG box shown in Figure 2−7. Make the following setting changes in the dialog Record Function box: a. Enable Transport source (a green dot appears next to the selected recording source).

  • Page 40: Figure 2−8: Record Settings Window With The Recording Function Armed

    Performance Verification 24. Click the Arm button. A message appears in the Record Settings window stating that the recording function is armed (see Figure 2−8). Figure 2−8: Record Settings window with the recording function armed 25. Click the Start button. A message appears in the Record Settings window stating that the recording is currently in progress.
  • Page 41 Performance Verification 27. Perform the following steps to verify that the transport stream file was recorded to the F:\ drive of the instrument: a. In the Record menu of the TSCA, click Record Settings to open the dialog box shown in Figure 2−7 on page 2−9. b.

  • Page 42: Figure 2−9: Mpeg Player Playing A Smpte310M Transport Stream

    Performance Verification 29. In the MPEG Player window, stop the player by clicking the black Stop Verifying the SMPTE310M button on the toolbar. Interface 30. In the SPI/ASI/310M menu, click BNC Port, and then click 310M 8VSB. 31. Start the TSCA by double-clicking the icon on the desktop.

  • Page 43: Figure 2−10: Smpte310M Interface Analysis Results

    Performance Verification 37. Verify the following in the analyzer window: H The TS Availability and Sync indicators at the bottom left of the analyzer window are green. H The bit rate readout at the bottom of the window reads 19.393 Mbps. NOTE.
  • Page 44 Performance Verification 39. In the MPEG Player window, stop the player by clicking the black Stop Verifying the SPI Interface button on the toolbar. 40. Start the TSCA by double-clicking the icon on the desktop. 41. In the MPEG Player toolbar, click the green Play arrow to start playing the transport stream file.

  • Page 45: Figure 2−11: Spi Interface Analysis Results

    Performance Verification Figure 2−11: SPI interface analysis results The following steps ensure that any RF interface installed in the instrument is RF Interfaces available; only one interface can be installed at a time. 47. Start the TSCA by double-clicking the icon on the desktop.

  • Page 46: Figure 2−12: Rf Interface Selection And Settings

    Performance Verification 53. Note that the Firmware version is current. If the firmware version is not current, a message is displayed and the Update Firmware button is activated. Click Update Firmware and allow the update to complete. 54. Note that the Interface Settings are displayed. See Figure 2−12. If you want to proceed with analysis, you may need to change the settings to suit your local setup.
  • Page 47 Performance Verification If an IP interface is installed in the instrument, the instrument is networked, and IP Interface the appropriate settings are known, select the IP card in the same manner as the RF card. After you have checked the interface, you have completed the Performance Shutting Down the Verification procedures.
  • Page 48 Performance Verification Version 00b MTS400 Series Performance Verification and Specifications Technical Reference 2−18...

This manual is also suitable for:

Mts400 seriesMts430

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