Tektronix MTM400A, IPM400A,,RFM300 User manual

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MTM400A, IPM400A, and RFM300

ZZZ

DTV Monitors

Technical Reference

*P077017502*

077-0175-02

MTM400A, IPM400A, and RFM300

ZZZ

DTV Monitors

Technical Reference

This document supports ﬁrmware version 4.0 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

077-0175-02

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 supersedes that in all previously published material. Speciﬁcations and price change privileges r eserved.

TEKTRONIX a nd TEK are registered trademarks of Tektronix, Inc.

FlexVuPlus and VQNet are registered trademarks of Tektronix, Inc.

Contacting Tektronix

Tektronix, Inc. 14200 SW Karl Braun Drive P.O . B ox 5 0 0 Beaverton, OR 97077 USA

For product information, sales, service, and technical support:

In North America, call 1-800-833-9200. World wide , vis i t www.tektronix.com to ﬁnd contacts in your area.

This warranty is for the hardware.

Warranty

Tektronix war year from the date of shipment. If any such product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for parts and labor, or will provide a replacement in exchange for the defective product. Parts, modules and replacement products used by Tektronix for warranty work may be new or reconditioned to like new performance. All replaced parts, modules and products become the property of Tektronix.

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warranty period and make suitable arrangements for the performance of service. Customer shall be responsible for packag charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located. Customer shall be responsible for paying all shipping charges, duties, taxes, and any other charges for products returned to any other locations.

This warranty shall not apply to any defect, failure or damage caused by improper use or improper or inadequate maintenance and care. Tektronix shall not be obligated to furnish service under this warranty a) to repair damage resulting from attempts by personnel other than Tektronix representatives to install, repair or service the product; b) to repair damage resulting from improper use or connection to incompatible equipment; c) to repair any damage

function caused by the use of non-Tektronix supplies; or d) to service a product that has been modiﬁed or

or mal integrated with other products when the effect of such modiﬁcation or integration increases the time or difﬁculty of servicing the product.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDORS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPAIR OR REPLACE DEFECTIVE PRODUCTS IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THIS WARRANTY.

KTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL,

TE OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

rants that this product will be free from defects in materials and workmanship for a period of one (1)

ing and shipping the defective product to the service center designated by Tektronix, with shipping

[W2 – 15AUG04]

This warranty is for the software media.

Warranty

Tektro ni x war the media will be free from defects in materials and workmanship for a period of three (3) months from the date of shipment. If any such medium or encoding proves defective during the warranty period, Tektronix will provide a replacement in exchange for the defective medium. Except as to the media on which this software product is furnished, this software product is provided “as is” without warranty of any kind, either express or implied. Tektronix does not warrant that the functions contained in this software product will meet Customer’s requirements or that the

In order to obtain service under this warranty, Customer must notify Tektronix of the defect before the expiration of the warr workmanship within a reasonable time thereafter, Customer may terminate the license for this software product and return this software product and any associated materials for credit or refund.

THIS WARRANTY IS GIVEN BY TEKTRONIX WITH RESPECT TO THE PRODUCT IN LIEU OF ANY OTHER WARRANTIES, EXPRESS OR IMPLIED. TEKTRONIX AND ITS VENDO RS DISCLAIM ANY IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. TEKTRONIX’ RESPONSIBILITY TO REPLACE DEFECTIVE MEDIA OR REFUND CUSTOMER’S PAYMENT IS THE SOLE AND EXCLUSIVE REMEDY PROVIDED TO THE CUSTOMER FOR BREACH OF THI SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES IRRESPECTIVE OF WHETHER TEKTRONIX OR THE VENDOR HAS ADVANCE NOTICE OF THE POSSIBILITY OF SUCH DAMAGES.

[W9b – 15AUG04]

rants that the media on which this software product is furnished and the encoding of the programs on

operation of the programs will be uninterrupted or error-free.

anty period. If Tektronix is unable to provide a replacement that is free from defects in materials and

S WARRANTY. TEKTRONIX AND ITS VENDORS WILL NOT BE LIABLE FOR ANY INDIRECT,

Table of Contents

General Safety Summary ........................................................................................ viii

Preface .............................................................................................................. xi

Product Descriptions ......................................................................................... xi

Product Documentation..................................................................................... xiii

Remote User Interface Overview

Remote User Interface Overview .......... .................................. ................................ ... 1-1

RUI Components ......... ................................ ................................ ................... 1-2

FlexVuPlus Display ............................... ................................ ......................... 1-11

Analysis Views

Analysis Views........................................... ................................ ......................... 2-1

Programs View....................... .................................. ................................ ........... 2-3

Transport Stream Node........................... ................................ ........................... 2-5

Program Node.............................................................................................. 2-15

Elementary Stream Node ...... ................................ .................................. ......... 2-16

Tests View ....................................................................................................... 2-21

All Tests Node ...................... ................................ .................................. ..... 2-24

Test Nodes ................. ................................ ................................ ................. 2-25

PID Nodes ..... ................................ .................................. ........................... 2-26

SI/PSI (Tables) View ........................ ................................ .................................. . 2-27

Table Summary Pane ...................................................................................... 2-28

Section View ............................................................................................... 2-29

SI Repetition Graphs View . .. . .. ... .. . .. ... .. . .. ... .. . .. ... .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . 2-31

EPG Views ................................................................................................. 2-31

PIDs View ............ ................................ ................................ ........................... 2-35

All PIDs Node. .................................. ................................ ........................... 2-36

Detail View (All PIDs and PID Group) .......... ................................ ....................... 2-37

Detail View (PIDs) ........................................................................................ 2-38

Packets View ................. ................................ ................................ ................... 2-40

Interface View.......................................... ................................ ......................... 2-41

GbE Interface............................................................................................... 2-42

COFDM Interface ............................ ................................ ............................. 2-51

8PSK Interface ........ ................................ .................................. ................... 2-52

DVB-S2 PSK Interface.................................................................................... 2-52

QPSK (L-Band) Interface................ ................................ ................................. 2-53

QAM (Annex A and Annex C) Interface ........................ .................................. ..... 2-54

QAM (Annex B II) Interface ............ ................................ ................................. 2-55

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference i

Table of Contents

8VSB Interface

Conﬁguration

Stream Conﬁguration............................................................................................. 3-1

Stream Global Settings .. ... .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. . .. .. 3-2

Recording Settings. . .. . .. .. . .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. ... .. . 3-4

Test Parameters .............................................................................................. 3-8

PCR Filters . .. . .. .. . .. . .. .. . .. .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. .. . .. . .. .. . .. .. . .. ... 3-10

Slot Management .......................................................................................... 3-12

Schedule Manageme

Device Conﬁguration........................................................................................... 3-22

Device Global Settings .. ... .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. ... 3-22

Passwords Settings . .. . .. .. . .. .. . .. . .. .. . .. . .. .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. ... . 3-23

Network Settings.... .................................. ................................ ..................... 3-24

Time Settings. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. .. . .. . .. .. 3-26

Preferences Conﬁguration ..................................................................................... 3-30

Preferences Global Settings .. .. . .. . .. .. . .. ... .. . .. ... .. . .. ... .. . .. ... .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . . 3-31

Font Settings . .. . .. .. . .. .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. .. . .. ... .. . .. . 3-31

Decode ...................................................................................................... 3-33

Interface Card Conﬁguration ..................... ................................ ............................. 3-35

Conﬁguring an Interface Card............................................................................ 3-36

IP Interface Conﬁguration

RF Interface Conﬁguration ..... ................................ ................................ ............... 3-47

COFDM Interface Settings .. .. . .. ... .. . .. .. . .. . .. .. . .. ... .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . 3-47

8PSK Interface Settings . . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. 3-48

DVB-S2 PSK Interface Settings .. .. . .. ... .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. ... 3-49

QPSK (L-Band) Settings. . .. .. . .. ... .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. ... . 3-50

QAM (Annex A and C) Settings.............. .................................. ......................... 3-51

QAM (Annex B2) Settings .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. 3-52

8VSB Settings . .. .. . .. . .. .. . .. . .. .. . .. .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. .. . .. . .. .. . .. 3-53

Channel Polling . .. . .. . .. .. . .. ... .. . .. ... .. . .. ... .. . .. ... .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . 3-54

Polling Setup .. . .. .. . .. . .. .. . .. .. . .. . .. .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. .. . .. .. . .. . .. .. . .. . .. .. . .. .. . .. .. . .. . . 3-55

Polling Screen . ... .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. .. 3-57

........................ ................................ ................................ ..... 2-56

nt .................................................................................... 3-16

........................ ................................ ............................. 3-38

Reference

Event Log.......................................................................................................... 4-1

Event Log Control ........................................................................................... 4-1

Pinning the Event Log.......................................... ................................ ............. 4-2

Copying the Event Log...................................................................................... 4-2

Exporting the Event Log .................................................................................... 4-2

ii MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Table of Contents

Color Coding Ev

Chart Views and Bit Rates....................................................................................... 4-5

Bar Charts ... ................................ ................................ ................................. 4-5

Error Status ................................................................................................... 4-6

Bit Rate Range Bar ..... .................................. ................................ ................... 4-6

Bit Rate Limits ...................... ................................ ................................ ......... 4-7

Pie Charts ..................................................................................................... 4

Historical Multiplex Graph . ... .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. ... 4-10

Graph Management ..................... ................................ ................................ ....... 4-11

Measurement Background ................................................................................ 4-11

Cursor Data and Control ............... ................................ ................................ ... 4-12

Graph Menu and Toolbar ................................................................................. 4-14

Adding a

Out of Range Indicators................................................................................... 4-15

Settling Time .. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. ... .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . 4-15

Zooming Graphs ........................................................................................... 4-15

Graph Controls ............................................................................................. 4-16

Miscellaneous................................................................................................... 4-17

Tabl

Table Column Conﬁguration ............................................................................. 4-17

Daylight Saving Time Conﬁguration File.............. ................................ ................. 4-18

Icons......................................................................................................... 4-19

Context Menus.................................................................................................. 4-20

nd Removing Graphs ................................ ................................ ........... 4-15

e Filtering .. . .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. . .. .. . .. ... .. . .. .. . .. . . 4-17

ents ........................................................................................ 4-3

-9

Maintenance

Maintenance....................................................................................................... 5-1

Preventative Maintenance .................................................................................. 5-1

Removing or Replacing an Interface Card ................................................................ 5-1

Battery Maintenance....................................................................................... 5-15

Repacking for Shipment .................................................................................. 5-16

Index

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference iii

Table of Contents

List of Figure

Figure 1-1: RUI components......... ................................ ................................ ........... 1-2

Figure 1-2: Toolbar controls..................................................................................... 1-4

Figure 1-3: Button bar .............. ................................ ................................ ............. 1-5

Figure 1-4: Customize Button Bar dialog box ............. .................................. ................. 1-6

Figure 1-5: Panel slide controls........ .................................. ................................ ....... 1-8

Figure 1-6: Tear-off view........................................................................................ 1-8

Figure 1-7: Status bar . ................................ .................................. ......................... 1-9

Figure 1-8: Breadcrumb trail... .................................. ................................ ............. 1-10

Figure 1-9: FlexVuPlus display ............................................................................... 1-11

Figure 1-10: FlexVuPlus select icon.......................................................................... 1-11

Figure 2-1: Analysis - Programs view ......................................................................... 2-3

Figure 2-2: Thumbnail display.................................................................................. 2-6

Figure 2-3: Template view ...................................................................................... 2-9

Figure 2-4: Service logging - Data storage ..... .................................. ........................... 2-12

Figure 2-5: Stream view - Summary ............ ................................ ............................. 2-13

Figure 2-6: Program node ..................................................................................... 2-15

Figure 2-7: Elementary stream node ......................................................................... 2-16

Figure 2-8: PCR Graphs view................................................................................. 2-17

Figure 2-9: Tests view ......................................................................................... 2-21

Figure 2-10: Test view nodes .... ................................ ................................ ............. 2-22

Figure 2-11: Test ﬁltering buttons ............................................................................ 2-23

Figure 2-12: Test Failures view.. ................................ .................................. ........... 2-24

Figure 2-13: Tests view - test nodes........... .................................. ............................. 2-25

Figure 2-14: Test view - PID nodes .......................................................................... 2-26

Figure 2-15: SI/PSI (tables) view...................... .................................. ..................... 2-27

Figure 2-16: SI/PSI (tables) view - Programs (example) .................................................. 2-28

Figure 2-17: SI/PS

Figure 2-18: Section payload .................... ................................ ............................. 2-30

Figure 2-19: EPG Summary view (tear-off view) ......... ................................ ................. 2-32

Figure 2-20: EPG nodes .. .................................. ................................ ................... 2-34

Figure 2-21: PIDs view ............... ................................ .................................. ....... 2-35

Figure 2-22: All PIDs Summary view (tear-off view)....................................... ............... 2-37

Figure 2-23: PID detail view - timing graphs ............................................................... 2-38

Figure 2-24: Packets view - ISDB-T, IIP detail example ..................... ............................. 2-40

Figure 2-25: Interface view (typical)......................................................................... 2-41

Figure 2-26: Interface view - GbE............................................................................ 2-42

Figure 2-27: IP Trafﬁc view (tear-off view)................................................................. 2-43

Figure 2-28: GbE interface Readings view (tear-off view) ................................................ 2-45

I (tables) view - Section view........................................................... 2-29

iv MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Table of Contents

Figure 2-29: Gb

Figure 2-30: GbE interface graphs (tear-off view).......................................................... 2-49

Figure 3-1: Conﬁguration dialog box .......................................................................... 3-1

Figure 3-2: Stream global settings conﬁguration page

Figure 3-3: Recording Settings conﬁguration page........................................................... 3-4

Figure 3-4: 25% pretrigger example .. ................................ ................................ ......... 3-6

Figure 3-5: 15% pretrigger example .. ................................ ................................ ......... 3-6

Figure 3-6: Record trigger set - example ....... ................................ ............................... 3-7

Figure 3-7: Test Parameters conﬁguration page............................................................... 3-9

Figure 3-8: PCR Filters conﬁguration page ................................................................. 3-10

Figure 3-9: PCR Filter parameters.. ... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. ... .. . .. . .. ... .. . .. ... . 3-11

Figure 3-10: Conﬁguration - Slot Management page...... .................................. ............... 3-13

Figure 3-11: Conﬁguration ﬁle handling..................................................................... 3-13

Figure 3-12: Schedule Management conﬁguration page........ ................................ ........... 3-18

Figure 3-13: Scheduling and time zones..................................................................... 3-21

Figure 3-14: Device global conﬁguration page ............................................................. 3-22

Figure 3-15: Passwords conﬁguration page ................................................................. 3-23

Figure 3-16: Network Settings conﬁguration page ......................................................... 3-25

Figure 3-17: Time zones example ............................................................................ 3-26

Figure 3-18: Time Settings conﬁguration page ............................................................. 3-27

Figure 3-19: Preferences conﬁguration page ................. ................................ ............... 3-30

Figure 3-20: Conﬁguration - Font page...................................................................... 3-32

Figure 3-21: Conﬁguration - Decode page .................................................................. 3-33

Figure 3-22: Typical Interface dialog box ................................................................... 3-36

Figure 3-23: GbE Conﬁgure Interface dialog box . .................................. ....................... 3-38

Figure 3-24: Single subscription mode ...................................................................... 3-43

Figure 3-25: Multicast subscription mode...................... ................................ ............. 3-44

Figure 3-26: RF interface card channel polling overview . ... .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. . .. ... .. . .. .. 3-54

Figure 3-27: GbE interface card channel polling overview. ... ... .. . .. . .. .. . .. . .. . .. ... .. . .. . .. .. . .. . .. . .. 3-54

Figure 3-28: Polling Overview screen (example). .. . .. .. . .. . .. .. . .. . .. ... .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. 3-56

Figure 3-29: Stream view - Polling screen . .. .. . .. . .. ... .. . .. . .. ... .. . .. . .. .. . .. . .. ... .. . .. . .. ... .. . .. . .. .. . 3-57

Figure 4-1: Event log color coding ...................... ................................ ....................... 4-3

Figure 4-2: Event log - Color dialog box ...................................................................... 4-4

Figure 4-3: Chart view icons.................................................................................... 4-5

Figure 4-4: Bar chart ............................................................................................. 4-6

Figure 4-5: Bar chart range bar ................................................................................. 4-6

Figure 4-6: Set Bit Rate Limits context menu................................................................. 4-7

Figure 4-7: Set Bit Rate Limits dialog box .................................................................... 4-8

Figure 4-8: Pie chart ............................................................................................. 4-9

Figure 4-9: Historical multiplex graph. .. . .. . .. ... .. . .. ... .. . .. . .. .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. ... .. . .. . .. 4-10

Figure 4-10: Typical timing graph display................................................................... 4-12

E interface - Diagnostics........................... ................................ ......... 2-48

........................ ............................... 3-2

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference v

Table of Contents

Figure 4-11: Gr

Figure 4-12: Graph toolbar......................... ................................ ........................... 4-14

Figure 5-1: Removing the instrument cover................ ................................ ................... 5-3

Figure 5-2: QAM (Annex A), QAM (Annex B1), QAM (Annex C), and QPSK (L-Band, old version)

interface card location....................................................................................... 5-5

Figure 5-3: (See Figure 5-2.)QAM (Annex B2), 8PSK/QPSK, DVB-S2, 8VSB, and COFDM interface

card locati

Figure 5-4: GbE interface card installation..... ................................ ............................... 5-6

Figure 5-5: Retaining screw locations for QAM (Annex A), QAM (Annex B1), QAM (Annex C), and

QPSK (L-Band, old version) interface cards ............................................................. 5-9

Figure 5-6: Retaining screw locations for QAM (Annex B2), 8PSK/QPSK, DVB-S2, 8VSB, and COFDM

interface cards ............................. ................................ ................................ ... 5-9

Figure 5

Figure 5-8: Cable connections for QAM (Annex A), QAM (Annex B1), QAM (Annex C), and QPSK

Figure 5-9: Cable connections for QAM (Annex B2), 8PSK/QPSK, DVB-S2, 8VSB, and COFDM

Figure 5-10: Cable connections for GbE interface card.................................................... 5-14

-7: Retaining screw locations for GbE interface card ............................................ 5-10

(L-Band, old version) interface cards.................................................................... 5-12

interface cards ............................. ................................ ................................ . 5-13

aph cursors.................................................................................... 4-13

on.................................................................................................. 5-6

vi MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

List of Tables

Table i: Product documentation................................................................................. xiii

Table 1-1: D

Table 1-2: Menu options.............. .................................. ................................ ......... 1-3

Table 1-3: Toolbar controls...................................................................................... 1-4

Table 1-4: Status bar controls ................................ ................................ ................... 1-9

Table 2-1: Programs view nodes................................................................................ 2-4

Table 2-2: Timing measurement graphs ........................ .................................. ........... 2-18

Table 2-3

Table 2-4: GbE IP Trafﬁc view column descriptions........................................ ............... 2-44

Table 2-5: GbE interface readings............................................................................ 2-46

Table 3-1: PCR settling times . .. . .. . .. . .. .. . .. . .. .. . .. . .. ... .. . .. . .. . .. .. . .. . .. .. . .. . .. ... ... .. . .. . .. .. . .. . .. . 3-11

Table 4-1: Icons............................ ................................ .................................. ... 4-19

Table 4-2: Context menus ..................................................................................... 4-20

Table

connectors .................................................................................................... 5-5

Table 5-2: QAM (Annex B2), 8PSK/QPSK, DVB-S2, 8VSB, and COFDM interface card connectors 5-7

Table 5-3: GbE interface card connectors .............. ................................ ....................... 5-8

TV Monitor interface options .................................................................... 1-1

: Color coding - Errors and Warnings ............................................................. 2-23

5-1: QAM (Annex A), QAM (Annex B1), QAM (Annex C), and QPSK (L-Band, old version) card

Table of Contents

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference vii

General Safety Summary

General Safet

To Avoid Fi

re or Personal

Injury

ySummary

Review the fo this product or any products connected to it.

To avoid pot

Only qualiﬁed personnel should perform service procedures.

Use Proper Power Cord. Use only the power cord speciﬁed for this product and certiﬁed for the country of use.

Ground the Product. This product is grounded through the grounding conductor of the power cord. To avoid electric shock, the grounding conductor must be connected to earth ground. Before making connections to the input or output terminals of the product, ensure that the product is properly grounded.

Observe All Terminal Ratings. To a v oid ﬁre or shock hazard, observe all ratings and markings on the product. Consult the product manual for further ratings information before making connections to the product.

Power Disconnect. The power cord disconnects the product from the power source. Donotblockthepowercord;itmustremain accessible to the user at all times.

llowing safety precautions to avoid injury and prevent damage to

ential hazards, use this product only as speciﬁed.

Do Not Operate Without Covers. Do not operate this product with covers or panels removed.

Do Not Operate With Suspected Failures. If you suspect that there is damage to this product, have it inspected by qualiﬁed service personnel.

Avoid Exposed Circuitry. Do not touch exposed connections and components when power is present.

Use Proper Fuse. Useonlythefusetypeandratingspeciﬁed for this product.

Do Not Operate in Wet/Damp Conditions.

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.

viii MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

General Safety Summary

Terms in this M anual

Symbols and Terms on the

Product

These terms may

WAR N ING. Warning statements identify conditions or practices that could result

in injury or loss of life.

CAUTION. Caution statements identify conditions or practices that could result in

damage to this product or other property.

These terms may appear on the product:

DANGER in the marking.

WAR N IN G read the marking.

CAUTIO

The following symbol(s) may appear on the product:

appear in this manual:

dicates an injury hazard immediately accessible as you read

indicates an injury hazard not immediately accessible as you

N indicates a hazard to property including the product.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference ix

General Safety Summary

x MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Preface

Product Descriptions

This manual describes the MTM400A, IPM400A, and RFM300 DTV (Digital Television) Monitors, which provide a complete solution for transmission monitoring o The monitors use a single transport s tream processor platform packaged in a 1 RU rackmount chassis to provide monitoring of a transport stream at data rates up to 155 Mbps.

The information in this manual is applicable to ﬁrmware version 4.0 and later.

f MPEG transport streams over RF, IP, ASI and SMPTE interfaces.

MTM400A DTV Monitor

00A D TV Monitor

IPM4

M300 DTV Monitor

The MTM400A monitor provides extended conﬁdence monitoring, which, with the addition of software options, provides comprehensive diagnostic monitoring capabilities. The extended conﬁdence monitor provides key MPEG tests; this basic level of functionality and low cost enables widespread deployment

hout a transmission network, facilitating rapid fault isolation. The

throug diagnostic monitoring options provide more in-depth analysis of the MPEG transport stream, including recording capability, PSI/SI/PSIP/ARIB analysis, and unique user-deﬁned template tests to ensure the right content in the right place at the right time. Deployed at key network nodes, the MTM400A monitor enables the cause of faults to be pinpointed and solved.

The IPM400A is a powerful solution for monitoring IPTV national and regional headends at both the ingest and IP broadcast point using a single IPTV interface card.

The RFM300 provides a complete solution for real-time DTV monitoring of MPEG transport streams to ATSC standards using an 8VSB RF interface. The comprehensive RF and PSIP conﬁdence-monitoring capability provides a powerful and cost-effective solution for monitoring DTV transmitter sites along with contribution and distribution feeds at local and national operation centers for FCC compliance.

The standard accessories for each product and the options available are listed in the product options and upgrades section of the associated quick start user manuals.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference xi

Preface

VQNet™ - Video Service

Assurance Manager

VQNet is an elem and network operations centers and head-end operations teams responsible for video delivery through their networks via an IP infrastructure. The software-only VQNet runs on a central computer that monitors and reports on the quality of signals measured by up to 500 MTM400A, IPM400A, and RFM300 DTV monitors distributed across a network. For further information, refer to the VQNet

Quick Start User Manual, Tektronix part number 077-0386-xx.

ent management system that can be used by central video

User Manual, Tektronix part number 071-2699-xx, and the VQNet

xii MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Product Documentation

The following table lists the product documentation supporting the DTV monitors.

Table i: Product documentation

Item (Tektronix part number) Purpose Location

MTM400A DTV M onitor Quick Start User Manual (071-2492-xx English, 071-2493-xx Japanese, 071-2632-xx, German)

IPM400A DTV Monitor Q u ick Start User Manual (071-2698-xx English)

Provides installation and high-level operational overviews

Preface

RFM300 DT User Manual (071-2700-xx English)

MTM400A, IPM400A, and RFM300 DTV Monitor Read This First (071-2654-xx)

MTM400A DTV Monitor Technical Reference (077-0175-xx)

MTM400A, IPM400A, and RFM300 DTV Monitor Speciﬁcations and Performance Veriﬁcation Technical Reference (077-0176-xx)

MTM400 and MTM400A RUI v3.x Upgrade Technical Reference (077-0174-xx)

MTM400A, IPM400A, and RFM300 DTV Monitor Test Parameter and C Reference (077-0177-xx)

MTM4 DTV Monitor Programmer Manual (077-0178-xx)

V Monitor Quick Start

, IPM400A, and RFM300

onﬁguration File Technical

00A, IPM400A, and RFM300

Provides installation and high-level

nal overviews

operatio

Describes late breaking product information and operational issues

s in-depth operating

Provide information (this manual)

Provides complete product speciﬁcations and a procedure for verifying the operation of the instrument

Describes the remote user interface (RUI) changes introduced with the MTM400A monitor

Provides information about using

parameters and conﬁguration

test ﬁles

Provides information about remote command syntax

MTM400A, IPM400A, and RFM300 DTV Monitor Declassiﬁcation and Security Instructions (077-0179-xx)

4UP U pgrade Instructions

MTM (075-0973-xx)

Provides instructions for removing your proprietary information from the instrument

Provides instructions for installing software and hardware upgrades

the MTM400A

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference xiii

Preface

Table i: Product documentation (cont.)

Item (Tektronix part number) Purpose Location

IPM4UP Upgrade Instructions (075-0997-xx)

Provides instructions for installing software and hardware upgrades in the IPM400A

RFM3UP Upgr (075-0993-xx)

ade Instructions

Provides instructions for installing software and hardware upgrades in the RFM300

xiv MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Remote User Interface Overview

The DTV monitors are single-stream, extended-conﬁdence, MPEG-2 protocol, monitoring devices. They are used to monitor a single transport stream in MPEG-2, DVB, be operated in a standard equipment rack.

ISDB and ATSC environments. DTV monitors are designed to

The basic DT

V monitor provides conﬁdence monitoring by making key measurements and comparing them with prese t parameters; inconsistencies can be reported as varying levels of error. Integrated ﬂexibility allows the software to be upgraded with diagnostic capabilities and to supply detailed information to enable fault identiﬁcation and analysis. Unencrypted MPEG-2 video content can be monitored using the thumbnail feature.

The user interface is accessed through a Remote User Interface (RUI). The RUI allows the status of the DTV monitor to be determined from anywhere in the world an

d provides remote control of the measurements and conﬁgurationtothe administrator. The RUI is accessed through Microsoft Internet Explorer (Version 6 SP 1 minimum).

Table 1-1: DTV Monitor interface options

Interface MTM400A IPM400A RFM300

ASI (Asynchronous Serial Interface Standard Standard Standard

SMPTE 310M Standard Standard Standard

QAM Annex A (Quadrature Amplitude Modulation)

QAM Annex B Optional

QAM Annex C Optional

COFDM (Coded Orthogonal Frequency Division Modulation)

QPSK (Quadrature Phase Shift Keying)

8PSK (Eight level Phase Shift Keying)

8VSB (Eight level Vestigial Side Band)

DVB-S2 Optional

IP Video Gigabit E thernet Optional Standard

Optional

––

–

––

Standard

–

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 1–1

Remote User Interface Overview

RUI Component

The following ﬁgure shows the main components of the RUI. They are described in the following paragraphs.

Figure 1-1: RUI components

eBar

Titl

1–2 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

The title bar shows the stream name (deﬁnedintheStreamConﬁguration view), the IP address of the connected DTV monitor, and the product title, for example the MTM400A Transport Stream Monitor.

Remote User Interface Overview

Menu Bar

The menu bar pro

vides access to a selection of major system options using

drop-down menus. (See Table 1-2.)

Table 1-2: Menu options

Menu name Command Shortcut keys Function

Analysis

View

Navigation

Settings

Help About...

Connect...

Exit Alt + F4

Show Main Window

Show Button Bar

Show Toolbar

Show Status Bar

Tear-O

Back /

FlexV

Select Tree ►

Conﬁguration... Alt + C Opens the Conﬁguration dialog box.

Interface...

Standard...

ffs ►

Forward

uPlus

Alt + N

Alt + L + Right

Alt + I

Alt + T

eft/Alt

Connect to new DTV monitor.

Closes the remote user interface window and terminates the connection with the DTV

Shows/hid

Shows/hides the button bar.

Shows/hides the toolbar.

Shows/hides the status bar.

es selection and control of tear-off windows.

Provid

s navigation backward and forward through view history.

Allow

Opens the FlexVuPlus display.

Opens Analysis windows:

grams tree

1Pro

sts tree

2Te

3 SI/PSI tree Ctrl + 3

IDs tree

Packets tree

6 Interface tree Ctrl + 6

Opens the Interface Conﬁguration dialog box.

Opens the DTV Standards Selection dialog box.

Displays application and system information.

monitor.

es the main window.

Ctrl + 1

Ctrl + 2

Ctrl + 4

Ctrl + 5

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 1–3

Remote User Interface Overview

Toolbar

The toolbar con Table 1-3.)

Figure 1-2:

Toolbar controls

Table 1-3: Toolbar controls

Item Control name Description

8 Reset Tests

Hide/Show button bar

s/Next

Previou

Connec

Interface Opens the Interface dialog box. (See page 3-35.) You can s et up the RF or IP interface.

Standard Opens the Standard Selection dialog box. You can select the DTV standard and region:

guration

Conﬁ

rding controls

Reco

Hide or show the button bar.

Move to t

Opens t DTV monitor or to connect to a different DTV monitor (see the DTV Monitor Quick Start User Manual).

MPEG,

Open functions.

Opens the Recording Settings dialog box. You ca n set up and initiate stream recording (See page 3-4.)

Resets all tests, including Stream, Device, and Interface tests and Informational warnings.

he previous/next view in the viewing history.

he Connect to M TM Device dialog box that you can use to reconnect to the current

DVB, ATSC, ISDB, Chinese, and DigiCiphereII.

stheConﬁguration dialog box. (See page 3-1.) You can conﬁgure stream and device

trols are described and shown in the following ﬁgure. (See

1–4 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Remote User Interface Overview

Button Bar

The button bar p application window. (See Figure 1-1.)(See Figure 1-3.) The buttons are divided into the following two groups:

Primary buttons. The primary buttons include Polling, Monitoring, Interface, Info Events, and Device.

Monitoring buttons. All of the buttons associated with monitoring are grouped under the Monitoring primary button. You can hide or show the monitoring buttons by clicking on the ▲ or ▼ symbols.

rovides basic monitoring and shortcuts to the views in the

Figure 1-3: Button bar

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 1–5

Remote User Interface Overview

Customizing th

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 when the button name is highlighted.

You can change the position of buttons in the Monitoring group by highlighting the button name and using the Move Up and Move Down buttons.

You can customize the display to show or hide the button bar depending on your monitoring needs. (See page 1-7.)

e Button Bar. To customize the button bar for your monitoring

Figure 1-4: Customize Button Bar dialog box

1–6 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Remote User Interface Overview

Main Application View

Showing / Hidin

g the Button Bar and the Main Application View. By clicking on the

appropriate button, you can hide the button bar, leaving only the main application window displayed, or you can hide the main application window, leaving only the button bar displayed.

Hide the button bar

Hide the main application v iew

Show the button bar / main application view

The main application view contains the following display elements: (See Figure 1-1 on page 1-2.)

Top-level tabs. The top-level tabs provide access to the FlexVuPlus display and the following Analysis views:

Programs view

view

Tests

SI/PSI (Tables) view

PIDs view

Packets view

Interface view (where an interface card is installed)

Summary tabs. The Summary tabs p rovide access to the individual analysis views, which include the tree views and the detail views.

Tree view. Each analysis view includes a tree view. This is a hierarchical view of the related analysis information.

Detail view(s). The detail views vary depending on which node is highlighted in the tree view. Detail views include summary views, error logs, and thumbnail views.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 1–7

Remote User Interface Overview

Horizontal and

controls, you can cause a single pane in the main application window to expand horizontally or vertically. (See Figure 1-5.) The controls are displayed on the divider bars that are between views and panels. The RUI window size and panel boundaries can be dragged in the conventional Windows manner to resize them.

Vertical Panel Slides. Using the horizontal and vertical panel

Figure 1-5: Panel slide controls

Tear-off Function. Click the tear-off icon to display a view in a window separate

from the main application view. (See Figure 1-6.)

Figure 1-6: Tear-off view

1–8 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Remote User Interface Overview

Status Bar

The Status bar m

essages are described and shown in the following ﬁgure. (See

Table 1-4.)

Figure 1-7: Status bar

Table 1-4: Status bar controls

Item Icon function Description

2 Login

6 Packet size Packets in a stream can be either 188 or 204 bytes long. This is detected automatically.

10 Partial reception

11 Processing status,

12 Processing status,

Connectivity Shows the status of the network connecti on with the DTV monitor. If the network connection

has failed, a red cross is superimposed on the icon.

Shows the user name currently logged in: Administrator or User. (See page 3-23.)

TS availability Indicates that either the stream bit rate has fallen below the minimum value or that

synchronization has been lost (see item 4 in this table, Sync). The minimum stream bit rate is set using the "Min stream bit rate for processing" parameter. (See page 3-8, Test Parameters.)

Sync Shows the status of the MPEG s ync loss test. Loss of sync during analysis of a stream may

mean that analysis of the complete stream was not possible.

Bit rate

Stream interpretation, base standard

Stream interpretation, region

Physical interface The current interface for real-time analysis.

Strained

Overwhelmed

Total bit rate of the transport stream.

This is the set of tests that is being used to analyze the stream.

This subset of tests modiﬁes the base standard; it may add tests or modify existing ones.

(Not shown - available only for ISDB-T streams.) This icon indicates the presence of partial reception data in the stream. The colors indicate the status as follows: Gray: Partial reception availability is unknown. Green: Partial reception data is available. Gray + red cross: Partial reception data is not available.

Shows the "strained" processing status; that is whether throttling is being applied to cut down on the information being processed.

Shows the "overwhelmed" processor status; that is whether the processing engine is able to cope with the amount of information in the stream even after throttling.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 1–9

Remote User Interface Overview

Table 1-4: Status bar controls (cont.)

Item Icon function Description

Processing status, SI throttle

Stream learning mode (Not shown) Shows that the stream learning mode is enabled. (See page 3-1, Stream

Processing status colors: Green: OK Amber: Processing was strained/overwhelmed but is currently OK Red: Processing is currently strained/overwhelmed White: Processor state is unknown Gray: Test disabled

Shows the SI throttle status; that is whether the processing engine is able to cope with the amount of SI tables in the stream, in particular EPG information, even after throttling.

Conﬁguration.)

Context Menus

Tooltips

Dialog Box Commands

Navigation

Context menus (or right-click menus) are available throughout the DTV monitor RUI. The menu options are context sensitive. (See page 4-20, Context Menus.)

Extensive tooltips are available. Hover the pointer over the button or item with which you need help.

Command buttons in dialog boxes operate as follows:

OK. Implements any changes made in the dialog box and closes the box.

Apply. Applies any changes made in the dialog box, but does not close it.

Cancel. Discards any changes made in the dialog box, but not already applied, and closes the box.

In addition to the Previous/Next controls in the toolbar, the FlexVuPlus and tear-off views display a breadcrumb trail to indicate their relative location in the RUI structure immediately beneath the title bar. (See Figure 1-2 on page 1-4.)(See Figure 1-8.) Click on an element of the breadcrumb trail to open the corresponding Analysis view.

Figure 1-8: Breadcrumb trail

1–10 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

FlexVuPlus Display

Remote User Interface Overview

The FlexVuPlus display enables the instrument to perform like a four-in-one monitor on a single incoming stream. (See Figure 1-9.) The display allows you to select up to four concurrent views of a monitored stream and provides the ability to con ﬁ gure each of the four views independently. Each of the FlexVuPlus views is selected

from views available under the Analysis tab.

Figure 1 -9: FlexVuPlus display

VuPlus Display

Flex

Selection

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 1–11

The FlexViewPlus select icon appears in the top-right corner of many main application detail views. (See Figure 1-10.) Use this icon to select views for simultaneous display in the FlexVuPlus window. When you click the icon, you

then select the FlexVuPlus panel in which the view will be displayed.

can

Figure 1 -10: FlexVuPlus select icon

Remote User Interface Overview

1–12 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Analysis Views

The analysis views provide a single main program summary window with different context sensitive views contained within tabbed frames. This view is intended to provide the maximum amount of useful information while keeping the screen from appearing cluttered. From the Analysis view window, you can access the f

Programs

Tests

SI/PSI (Tables)

PID

Packets

Interfa

These views are described on the following pages.

ollowing views:

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–1

Analysis Views

2–2 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

The Programs view is displayed when the Analysi s > Programs tab is selected. The tree view initially displays the top node of the program tree, which represents the monitore

d stream from a program perspective.

Figure 2-1: Analysis - Programs view

The detail view shows details of the node highlighted in the navigation view.

With the tree expanded, the navigation view shows the makeup of the stream. (See Figure 2-1.) The tree view consists of the transport stream, program, and elementary stream nodes (PIDs). The transport stream carries a number of

grams and each program carries a number of elementary streams. Elementary

pro streams are carried in packets that are identiﬁed by packets identiﬁers (PIDs).

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–3

Programs View

Each node in the

programs tree view displays a different range of detail views as

in the following table.

Table 2-1: Programs view nodes

Transport stream

Detail tab

Summary

Thumbnails

Temp l a t e

Event Log

Service Log

Test erro r s (TR 101 290; A78; other)

Other errors

SFN errors

Program Tests

Associated Tests

Timing Graphs

TMCC/IIP

node Program node

Elementary stream node

Error Location

Clicking the Next Error button will highlight the next red LED in the current view. Only the lowest level nodes will be considered and highlighted in the search because the parent nodes simply reﬂect the state of the lowest level nodes.

2–4 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

Transport Str

Test Status Views

eam Node

The transport stream node represents the entire transport stream in terms of the programs that it contains. The adjacent LED icon represents the status of the entire transport st When this node is selected, the detail view displays the transport stream summary.

The associa stream, allowing you to see the relative data rates of all of the programs contained within the transport. A summary of the overall stream is also displayed. The information can be displayed as a bar chart, a pie chart, or a historical multiplex graph. (See page 4-5.)

ThedatarateofaprogramisthecumulativedatarateofallthePIDsthatare associated with that particular program, including PCR and ECM PIDs.

NOTE. Components can be shared between programs, so the overall d ata rate

of all o transport stream as shown in the status bar.

The lower detail view shows you a summary of the states of all the associated

s and an event log for the entire transport stream (an unﬁltered event log).

test The available test tabs vary, depending on which interpretation standard you choose. For example, with the DVB interpretation standard, the available tabs are TR 101 209 and Other. Other interpretation standards will generate different tabs and different sets of tests. (See page 2-27, SI/PSI (Tables) View.)

ream; any status error in the stream will be represented by this LED.

ted detail view provides a program-oriented overview of the transport

f the programs can appear to be greater than the total data rate of the

Event Log

You can use the context (right-click) menus to reset and disable tests to set alarms, recording triggers points, and to jump to associated tests.

The Event Log displays the log entries for the whole transport stream. A detailed description of event log management is provided. (See page 4-1, Event Log.)

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–5

Programs View

Thumbnails

This screen dis

Three modes of thumbnail display are available: Thumbnails only, Brief Details, and Full Summa channel, including its service name and PID. The Brief Details and Full Summary views provide progressively more detailed information about each video channel. Selecting the thumbnail viewing size from the context menu affects all thumbnails.

plays thumbnail views of the video channels being monitored.

ry. The thumbnails only view provides a video view of each

Figure 2-2: Thumbnail display

2–6 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

Video and Audio Backhaul

If the video cha

nnels being monitored are scrambled or undecodable, one of the

following icons will be displayed:

The following

icons are used to indicate the state of thumbnails:

(Red) Error or no thumbnail

(Red, with padlock) Video - Scrambled

(Blue) Non-video / non-audio

(Blue) Audio

(Gray) Stream processing strained

The color of the thumbnail frame reﬂects the status of the PID carrying the displayed elementary stream. To view the PID in the PIDs v iew, either select the quick li

nk from the context menu or double-click the thumbnail frame.

By streaming video and audio content, backhaul allows program content to be checked and veriﬁed. The backhaul control bar contains the following controls:

Start streaming video and audio content to the conﬁgured decoder.

Start streaming audio content to the conﬁgured decoder.

Select the audio content to be streamed. The available audio content will vary from stream to stream.

Stop the current streaming session.

er to the decode set up to conﬁgure the decoder to be used by backhaul.

Ref (See page 3-33.)

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–7

Programs View

Template

Monitoring the standard (for example, TR 101 290) is not enough to guarantee that the correct information is being delivered to the viewers’ receiver. Ensuring that the contents of the transport stream are correct requires the monitoring equipment to have prior knowledge of what the broadcaster plans to transmit. A template in which the operator enters the values expected to be present in a transport stream can be compared any discrepancy.

The compos programming is replaced by the evening primetime and then the late night programs. You can schedule template changes to coincide with changes in the program content.

Among the items that can be checked using a template are the following:

Transport stream identiﬁer

Servic

PIDs in services

PID types and scrambling state

Service regional ratings

syntax of a transport stream according t o the selected DTV

with a transport stream to verify its content, and made to indicate

ition of a transport stream may vary during the day as daytime

es - presence, name

The template feature allows you to create a template that can be applied to a stream (or streams) that is being monitored. If the stream does not conform to the template, the associated icon changes color (in the same way as the error icons) and an entry is made in the error log.

Initially, templates are stream speciﬁc; a template will be created and applied to a speciﬁc stream. However, a template can subsequently be uploaded to any device.

The presence of service 8258 in the transport stream is being checked. (See Figure 2-3.) In addition, details of the service and associated PIDs are checked.

2–8 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

Figure 2-3: Template view

The device and stream identities are shown in the title bar. The template currently in use is shown in the ﬁeld at the top of the screen.

The ﬁrst column shows, in hierarchical and graphical form, the categories of template elements to be applied. Each category can be expanded by clicking the folder icon. (See page 2-11, Template Manipulation.)

If the element conforms to the template setting, the State icon will be green. Failure to conform is indicated by a red icon. If any elements fail to conform, the Template button in the button bar will also be red.

The Expected Value is the value provided in the template conﬁguration ﬁle.

The Actual Value is reported.

The template content is supplied in XML format as part of the conﬁguration ﬁle. The template lists data whose presence and content is to be checked in the transport stream. The State icons indicate that an element listed in the template has conformed to the requirement.

The following template section of a conﬁguration ﬁle resulted with the display. (See Figure 2-3.)

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–9

Programs View

2–10 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

Template Manip

tree format, the branches of which can be expanded and contracted if the ﬁle is viewed in an XML editor or Microsoft Internet Explorer.

Each category title is accompanied by a folder icon. Clicking a folder will expand that category. Expanding a category might reveal the basic components of the category or it might reveal further subcategories, which can also be expanded.

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).

The DTV monitor will automatically generateatemplateforyoubasedonthe stream being monitored. You can Create and Apply a template immediately or you can Create and Download a template for further modiﬁcation or examination.

Template checking can be turned off by disabling the Template checking checkbox on this view or the Conﬁguration > Stream page.

ate and Schedules. The use of templates can be enhanced by scheduling

Templ

their application and use. In this way, a series of templates can be applied chronologically to a stream. (See page 3-16, Schedule Management.)

ulation. The categories of template elements are interpreted in a

Service Log

program in a transport stream can contain one or more elementary streams

Each (for example, video, audio and control). The content of each elementary stream is carried as packets of data; each elementary stream is assigned a Packet Identiﬁer (PID). Service Logging allows packet counts for speciﬁed PIDs (range: 0 to 100) to be collected at a user-deﬁnable interval.

Typically this information can be used by network operators to bill customers for transferred data. Network operators may want to present an itemized bill for packets of data carried in each time period.

Thedataisstoredasagrid. Aftereachtimeperiod,allthecountsmovedown one position and a new count is started in the top row. The grid is 64 rows (time periods) deep and 100 PIDs wide. So up to 100 PIDs may be monitored, with a common timing resolution.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–11

Programs View

Figure 2-4: Service logging - Data storage

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. If data does reach the bottom of the grid, it is not lost but it is accumulated in the ﬁnal row. Accumulated data is added to the bottom row for up to three days. After this time the data is discarded and the PID is no longer monitored.

2–12 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

When a service l should be selected to consume entries. This will allow all locations adequate time to view or log the entries.

The customer must balance the level of detail required (the timing resolution) with the infrastructure that is required to collect, store, and collate the information. Typically the timing resolution is set for 1000 ms; in this case the grid cell will contain a value approximating to packets per second; to improve accuracy each count has an associated duration.

og is being monitored from multiple locations, only one location

ure 2 -5: Stream view - Summary

Fig

following settings are available:

The

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. One RUI should be nominated to consume the entries. This RUI will then be guaranteed to get all of the data without another RUI consuming the data. Where the data is logged to disk, the

ogging RUI must be the consuming RUI.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–13

Programs View

Log Entries. Se

Log Filename. Displays the log ﬁle name. A log ﬁle name can only be set when

the Consume Entries checkbox is selected. The log ﬁle is written in CSV (comma separated values) format. In this format, it can be transferred to any suitable analysis program, for example, Microsoft Excel.

Max. List Entries. This value sets the number of entries that are displayed. It does not affect the actual logging of counts. Enter a value in the ﬁeld and select Set.

Add / Delete. The Service PIDs text area lists the PIDs currently being logged. PIDs can be added and deleted.

The timing resolution of counts is controlled by conﬁguration ﬁle parameter PS4 (Packet Counting Bin Duration) multiplied by PS6 (Number of Packet Counting Bins), t

PS4 is the t (tau) value for the PID occupancy bit rate measurement as deﬁned in TR 101 2 the timespan is a whole multiple of the bit rate counting interval and reduces sampling errors. PS6 (Counting Bins) should be set to give the required count duration-TimingInterval(PS4*PS6*10).

Service Log Conﬁguration. The Service Log parameters can also be set using the conﬁ

ypically PS4 * PS6 is set for 1000 ms.

guration ﬁle. The following example shows how to monitor four PIDs.

lect this checkbox if entries are to be logged to a ﬁle.

90. This value affects many measurements; in this case it ensures that

NOTE. The PIDs may be speciﬁed as separate elements or as a space delimited

list.

This conﬁguration can be embedded in a full conﬁguration ﬁle, or just uploaded as an incremental change. (Refer to Conﬁguration File Structure in the DTV Monitor Programmer Manual).

2–14 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Program Node

Programs View

Each of the program nodes in the transport stream represents a single program referenced within the stream. When a program node is selected in the navigation view, the detail pane displays the details of the program. The LED adjacent to the program node represents the status of its child nodes (elementary streams) and the related

tests.

Figure 2-6: Program node

The program detail view provides you with an overview of the selected program, allowing you to see the relative data rates and stream types of all of the PIDs that are associated with the program (including PCR and ECM PIDs). If the program contains an MPEG2 video stream, it is decoded to produce a thumbnail picture of the content. Similarly, where EPG information is associated with the program, a

mmary (Now and Next p rogram) is displayed. PID content is indicated using

su icons. Bar chart and pie chart views are available.

D related information is available under the Summary view.

The Thumbnails view displays details of the streams and thumbnails for each of

he programs (where available).

The Program Tests view shows tests related to the program.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–15

Programs View

The Event Log sh tests are selected, the event log will show the events related to all tests associated with the elementary stream selected in the program tree. You can deselect a test in the detail view by clicking the Name column header.

Where parameters are associated with tests, parameters can be edited using the context menu. (See page 3-8, Test Parameters.)

Elementary Stream Node

Each of the elementary stream nodes in the program tree represents a single elementary stream refere nced by the parent program. When this node is selected, the view pane displays the Associated Tests view. A tooltip is displayed giving stream ty program tree view.

ows the errors for the highlighted program or test. When no

pe and description when the pointer is hovered over the node in the

Figure 2 -7: Elementary stream node

An LED associated with each elementary stream node indicates the status of the

ests relating to the elementary stream.

2–16 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

When the select analysis views are also available, allowing you to display graphs of PCR accuracy and PCR interval data. When the transport stream contains timestamped data, the PCR overall jitter, PCR frequency offset, PCR arrival time, and PCR drift rate graphs are also available. (See page 2-18, Timing Graphs.)

NOTE. Graph management and timing graphs are described in more detail in the

Graph Manag

ed elementary stream PID contains timing information, PCR trend

ement. (See page 4-11.)

Figure 2-8: PCR Graphs view

The Associated Tests tab shows tests related to the elementary stream node.

Where parameters are associated with tests, parameters can be edited using the context menu. (See page 3-8, Test Parameters.)

Similarly, the Event Log shows the errors for the highlighted test. When no tests are selected, the event log will show the events related to all tests associated with the elementary stream selected in the program tree.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–17

Programs View

Timing Graphs

The following t

able shows the timing graphs that are available for PIDs carrying

PCR and PTSs.

Table 2-2: Timing measurement graphs

Graph Type PID + PCR + Timestamps

PCR Inaccuracy

PCR Arrival Interval

PCR Drift Rate

PCR Frequency Offset

PCR Ove rall Jitter

PTS Arrival Interval

PTS-PCR Variation

Descriptions follow of e ach of the measurements. Adjustments can b

emadeto

each of the measurement parameters.

If the interval exceeds the limits displayed on the screen, the sc

ale is adjusted

automatically as necessary to include the maximum displayed values.

NOTE. As with other parameter value adjustments, it is important to note where

the adjustment is being made from. If the adjustment is made with a test node highlighted, all PIDs will be measured against that value. If the adjustment is made with a PID highlighted, only that PID will be measured against the modiﬁed value.

PCR Overall Jitter

PCR Inaccuracy

The Program Clock Arrival (PCR) Overall Jitter graph shows the time interval between the actual value of the PCR and its expected value based on its arrival time.

The Maximum PCR Accuracy Error limit can be adjusted by modifying the Max PCR overall jitter parameter.

The PCR Inaccuracy graph shows the difference between the actual and expected values for each PCR on the Y-axis. Expected PCR values are calculated from t he byte index of the PCR.

The Maximum PCR Accuracy Error limit can be adjusted by modifying the Max PCR accuracy error.

2–18 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Programs View

PCR Arrival Interval

PCR Drift

PCR Frequency Offset

The PCR Arrival successive PCRs, during the last 256 PCRs. The interval is displayed on the Y-a x i s .

The PCR Maximum Repetition Interval limit can be adjusted by modifying the PCR max repetition interval.

The Drift Ra often very small. It is calculated using PCR Frequency Offset measurements.

The maximu frequency drift rate parameter.

The Frequency Offset graph shows the difference between the program clock frequen not PCR or transport stream derived).

PCR Fre the speci ﬁ ed 27 MHz; the MPEG speciﬁcation sets the limits at ±810 Hz.

The Ma "Max PCR frequency offset" parameter.

cy and the nominal clock frequency (measured against a reference that is

quency Offset is a measurement of the error in the PCR frequency from

ximum PCR Frequency Offset limit can be adjusted by modifying the

Interval graph provides a display of the time interval between

te graph shows the rate of change of PCR Frequency Offset, which is

m PCR Drift Rate limit can be adjusted by modifying the Max PCR

PTS Arrival Interval

PTS-PCR Variation

Presentation Time Stamps (PTS) graph provides a display of the time interval

een successive PTSs.

betw

Signiﬁcant variation between the PTS and PCR arrival intervals may indicate that there are timing problems in the monitored stream.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–19

Programs View

2–20 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

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 barorwhenth

e Tests tab is selected in the tree view. (See Figure 2-9.)

Figure 2-9: Tests view

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–21

Tests View

The view displa to the analyzed transport stream. The nodes are available in the navigation view. (See Figure 2-10.)

ys a test tree that represents all the tests that have been applied

Test Structure

Figure

The test tree structure represents all of the tests that can be applied to a transport strea ISDB-S, and ISDB-T. The standard must be selected before beginning analysis. The test tree contains nodes for each test that the analyzer can implement gathered under the stream tests primary node.

An example of a tree structure for a selected standard is the TR 101 290 group of tests for DVB transport streams. (See Figure 2-10.) The Group node is split into priority groups: First Priority, Second Priority, and Third Priority. Each of these priority groups contains a number of individual tests.

Test grouping differs between digital video standards. However, all of the currently implemented standards contain a subset of the relevant TR 101 290 tests. I

Where relevant, PIDs will be associated with a test in the test tree when the test has either been disabled, or when it has failed.

Two other primary nodes are displayed, Informational Events and Device Tests.

2-10: Test view nodes

m complying with a particular digital video standard: MPEG, DVB, ATSC,

n standards other than DVB, the tests are not numbered.

2–22 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Tests View

Error Color Coding

Informational

Events include stream events and messages that are logged but do not constitute a test failure; for example, a version change of a table carried in the SI/PSI is reported in the stream log but is not subject to a standard test. The only place that these stream events are recorded is in the stream logs. This screen 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 sessi

ons 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 t

rigger actions can be set on all tests using the context menus. In addition to the alarms and triggers, message recording in the stream log can be enabled and disabled for stream related tests.

The colo

r coding used for the error icons is shown in the following table.

Table 2-3: Color coding - Errors and Warnings

Icon Color Meaning

he event is not happening at this time.

Green

Red Event detected and still present.

Yellow Transient event, which has now ended.

Idle - t

Test Filtering

Gray The event has been disabled (or is unavailable).

All buttons gray indicates that connection to a device has been lost.

White

Black Maintenance mode.

terpreting the display of tests can be made easier using the three ﬁlter buttons at

Test not applicable. For example, PCR tests when the program clock reference is not carried by any PIDs in the stream.

the top of the Tests navigation view.

Figure 2-11: Test ﬁltering buttons

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–23

Tests View

All Tests Node

Each button can

To show all tests (the defa ult), all buttons must contain a tick.

To hide tests that are currently disabled, that is, gray, click the gray button so that it shows a cross.

To hide tests that are not applicable to the current standard or stream content, that is, white, click the white button so that it shows a cross.

To remove all tests that are currently passing, that is, green, click the green button so that it shows a cross.

NOTE. The

that they are no longer ﬁltered out - for instance a green test turning red.

A detailed view is displayed when the All Tests node is selected. (See Figure 2-9 on page 2-21.) In addition to a summary of all tests, the event log shows the most recent events that have occurred during analysis of the stream.

be used to ﬁlter tests from the tree to reduce visual clutter.

tests will still be performed when hidden unless their state changes so

Test F

ailures View

Figure 2-12: Test Failures view

The Test Failures view provides an overview of the tests that have failed d uring monitoring. The view is divided into two panes and is updated every second; longer under high load conditions.

The left column lists all tests that are currently failing.

The right column lists all tests that have failed at some point since monitoring began (or since the last reset), but are not currently failing.

Any tests that were not present in a list in the previous update are shown shaded.

2–24 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Test Nodes

Tests View

When you select a test node, the Associated PIDs pane displays a summary of all of the PIDs and an event log listing all events that are associated with the test.

Figure 2-13: Tests view - test nodes

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–25

Tests View

PID Nodes

Where tests have failed, the PIDs affected are listed under the test node in the Tests navigation v iew. Selecting a PID will display the Event Log for that PID.

Figure 2 -14: Test view - PID nodes

2–26 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

SI/PSI (Tables) View

SI/PSI (Table

s) View

The SI/PSI (t other navigation views. The tree represents the service information tables that have occurred in the monitored stream and that comply with the selected digital video standard. This includes MPEG program speciﬁc information, DVB service information, ATSC and ISDB program information, and system information protocol. The tree contains nodes for each table f ound; tables/nodes are grouped together b navigation view with DVB stream interpretation selected.

ables) view displays service information in tree form, as in the

y functionality. The following ﬁgure shows an example of the Table

Figure 2 -15: SI/PSI (tables) view

Every node within the service-information tree has a corresponding summary

ew. Nodes that represent tables will provide you with access to the table

vi structure and hex data. (See page 2-29, Section View.) Nodes that represent tables will also provide you with the graphical displays of data rates and interval data. (See page 2-31, SI Repetition Graphs View.)

Some of the nodes that represent less common tables or table groups may not have speciﬁc summary views available in the analyzer. In these cases, a generic summary view is used.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–27

SI/PSI (Tables) View

Table Summary

Pane

The Table Summary view provides a summary of the table related information for the monitored transport stream. There is a table summary view for every node of the service i

All summary views for nodes that represent an individual table or subtable will displa information is extracted. Where relevant, links are provided to associated objects, for example, in the Programs Summary, links are provided to the individual program summary views. (See Figure 2-16.) Similarly, arrow icons provide links to the electronic program guide (EPG) tables. Where the section is carried on a PID,alinkisalsoprovidedtothePIDsview.

The following ﬁgureshowsanexampleofthesummarypanewiththePMTPIDs node selected in the navigation view.

nformation. The content is dictated by the selected node.

y the table identity and version number of the table from which the

Figure 2-16: SI/PSI (tables) view - Programs (example)

EPG Views

2–28 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

A speciﬁc departure from the Table Summary view is the EPG view that is displayed when a section of the EPG table is highlighted. (See page 2-31, EPG Views.)

Section View

SI/PSI (Tables) View

The detailed section view is available when the selected node in the service information tree represents a table or subtable in the transport stream. (See Figure 2-17. top of the table pane.

) The subtable identity, version, and section are displayed at the

Figure 2-17: SI/PSI (tables) view - Section view

The table pane shows all ﬁelds that make up a section (for example, PMT). The ﬁelds are arranged in a hierarchical order. The pre sence of subordinate ﬁelds is

icated using { } bracket symbols adjacent to the container ﬁeld. The container

ind can be expanded or collapsed by clicking the + or - icon.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–29

SI/PSI (Tables) View

Below the table

pane, the data source is displayed. The data pane shows the data bytes (in both hexadecimal number format and ASCII character format) for the selected table, version, and section. When a node is selected in the table pane, the bytes that make up the selected node (including the subordinate nodes) are highlighted in the hexadecimal data pane. (See Figure 2-18.)

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.

se table section updating

Pau

Resume table section updating

2–30 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

SI/PSI (Tables) View

SI Repetition

EPG Vie

Graphs View

The section graph view will be available when the selected node in the service information tree represents a table or su btable in the transport stream. You can view graphs o

NOTE. Not all of the above graph types are relevant to all table types. Graph

Management is described in more detail in Graph Management. (See page 4-11.)

An electronic program guide (EPG), where present, is a schedule of events, and programs, that are or will be available on each service. A short summary or comme actually carried in the stream are referred to as "actual" and as "present" or as "following" (labeled as "EIT actual p/f" in the navigation view).

f the following data:

Section repetition interval. This graph displays the interval between two sections of

Subtable intersection gap. This graph displays the interval between sections in a partic

Subtable repetition interval. This graph displays the time between receiving one compl

ntary for each event may also be included. Events for services that are

a table on a particular PID.

ular subtable.

ete subtable and receiving the next complete subtable.

A transport stream may also carry EPG information for other network services, referred to as "other" (labeled as "EIT other p/f" in the navigation view).

NOTE. The examples shown in the ﬁgures in this section are of DVB transport

streams. The construction of SI and node names in ATSC and ISDB streams differ.

The EPG node in the navigation view contains and displays all of the program information carried in the transport stream.

The content of the Detail view will depend on the currently highlighted EPG table node. Nodes representing an individual table or subtable will offer the usual Summary, Section, and SI Repetition graph detail views. However, the higher nodes will display the programming information graphically. (See Figure 2-19.)

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–31

SI/PSI (Tables) View

Figure 2 -19: EPG Summary view (tear-off view)

EPG Summary View

The following screen elements are highlighted: (See 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 derived either from the transport stream, UTC (Coordinated Universal Time), or local time (as set on the host computer).

Start Time. Shows the event panel start time and date. Other dates can be selected from the drop-down calendar, and the display will scroll to the selected date.

The initial date and time will be dictated by the information found in the stream. This information is updated regularly.

Display Range. Shows the extent of the event panel. More detail can be displayed by choosing a shorter time period. Select the required range from the drop-down list. The adjacent zoom buttons select the next/previous range in the drop-down list.

2–32 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

SI/PSI (Tables) View

Time Scale. Sho dictated by the Display ﬁeld selection.

Lock to Now. On the timesc ale, "Now" is marked. If past or present programs are being viewed, the Now marker can be off screen. The Lock to Now button brings the Now marker into view and keeps it in view. Scrolling the timescale deactivate

Service/Subtable panel. When a transport stream EPG is selected, this panel shows the names of the services currently displayed in the event panel. The displayed services will vary depending on which node is selected in the navigation view.

Event Panel. This panel shows the events for one or more services, depending on the selected node. Individual events are color-coded and shown as blocks; each block (and its associated tooltip) displays event information that is extracted from the EIT. When a block is selected, the complete event information is shown in the event detail panel, including a link to the section carrying the information.

Events are color-coded as follows:

Red: Present event

Green: Following event

ws the start and end time of the current event panel. The range is

s the Lock to Now button.

Blue: Schedule event

low: (ISDB only) After event

Yel

Event Detail Panel. Shows details of the selected event. The details are contained in the EIT (event information table).

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–33

SI/PSI (Tables) View

EPG Node Summar

Figure 2-20: EPG nodes

For each node type, the detail view shows the following information:

EPG Node. Links to the EPG information for all the transport streams described in this stream.

sport Stream Summary Nodes. Graphical view of t he events identiﬁed in the

Tran

service(s) belonging to a speciﬁc transport stream.

SDT (Service Description Table) Nodes. Links to services identiﬁed in the SI for a speciﬁc transport stream.

rvice Summary Nodes. Graphical view of the events identiﬁed in the service.

EIT Nodes. Detailed view of event information for a single EIT subtable.

Where appropriate, program content advisory information is displayed in abbreviated text form.

2–34 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

PIDs View

The PIDs view displays information about all of the PIDs found in the transport stream being monitored. (See Figure 2 -21.) The tree view contains the PID tree structure re stream.

presenting all of the PIDs that have occurred within the transport

Figure 2-21: PIDs view

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–35

PIDs View

All PIDs Node

In the navigation view, PIDs are grouped under the following subordinate nodes:

Reserved PIDs

Referenced P

Unreferenced PIDs

SI/PSI PIDs

User PIDs

The number of PIDs in each group is shown adjacent to the node. The root node label shows the total number of PIDs found and the Network Name.

When highlighted, the All PIDs node displays in the detail pane all of the PIDs found in the analyzed stream.

Each of the subordinate nodes contains PIDs belonging to that group. PIDs are allocated d uring monitoring, andthenumberofPIDsisidentiﬁed for each node. You can also allocate PID numbers to the User PID node, although User PIDs may not necessarily have been found in the stream. This feature allows you to

re the properties of one or more PIDs more easily.

compa

The associated summary view provides a PID-oriented overview of the transport

am, allowing you to see the relative data rates of all of the PIDs contained

stre within the transport stream. The information can be displayed as either a bar chart or as a pie chart. Columns in the summary views can be sorted in ascending or descending order by clicking the column header.

IDs

Each PID is associated with a number of tests. If one or more tests fail, they will be listed under the relevant PID node in the navigation view. Selecting the PID node will display a summary, in the detail view, of all assoc iated tests that have been found. Selecting a speciﬁc test in the Associated Tests pane will display the

vent Log and Parameters for only that test.

The Thumbnails tab displays views of the PIDs carrying video information. Three

odes of thumbnail display are available: Thumbnails only, Brief Details, and

m Full Summary. (See page 2-6.)

2–36 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

PIDs View

Detail View (A

ll PIDs and PID Group)

The All PIDs and PID Group detail view provides you with a PID-oriented overview of the transport stream. This view is displayed when any of the main nodes is sele PIDs,orUserPIDs.

The view sho selected node. You can display the information in either a bar chart or a pie format. The associated test states are shown in all views.

In the pie chart view, double-clicking in the pie chart area toggles the segment labels. When no labels are displayed, clickandholdasegmenttodisplaya single label.

cted in the tree pane: All PIDs, Referenced PIDs, Unreferenced

ws the relative data rates of all of the PIDs contained within the

ure 2-22: All PIDs Summary view (tear-off view)

Fig

node summary views provide PID related information, for example, PID

The type stream type, scrambled status and the presence of PCRs. Layer information is also shown when analyzing ISDB streams. Icons provide an indication of the PID content. The combination and detail of the views vary depending on the selected PID type and node.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–37

PIDs View

Detail View (P

Ordinary PID Selected

PCR PID Selected

IDs)

The individual PID detail view provides you with information about the selected PID. This view will be visible when you select an individual PID node in the PID tree. Where a nodes of the PID. The combination and detail of the views vary depending on the selected PID type and node.

When a PID d Associated Tests view. This view lists the tests associated with the selected PID. The status of the individual tests is indicated with LED icons. Also available are Timing Graphs, which show the bit rate of the selected PID in graphical form.

The Associated Tests event log shows all PID related events. If a test is selected in the PID panel, only the e vents associated with that test on that PID are shown. Similarly, when a test is selected, the Parameters option in the context menu shows the parameters associated with that test (when applicable). A test can be

cted by clicking the Name header in the PID panel.

desele

When the selected PID contains PCR information, the PCR timing graphs are made available. (See Figure 2-23.)

PID has failed a test, one or more test nodes are displayed as child

oes not contain PCRs, the main view in the PID pane is the

Figure 2-23: PID detail view - timing graphs

2–38 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

PIDs View

A Presentation audio and video information. (See page 4-11, Graph Management.) (See page 2-18, Timing Graphs.)

Time Stamp (PTS) graph may also be available on PIDs carrying

MTM400A, IPM400A, and RFM300 DTV Monitors 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.

The following ﬁgure shows an example of the IIP view in an ISDB-T transport stream.

e 2-24: Packets view - ISDB-T, IIP detail example

Figur

2–40 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Interface View

Interface Vie

If any one of t and button are displayed. (See Figure 2-25.)

NOTE. Refer to Interface Card Conﬁguration for information about conﬁguring

the optional interface cards.(See page 3-35.)

Two primary nodes are displayed in the tree view: IF Error Collection and IF Warning Collection. Each collection contains a range of tests.

he interface cards is installed in the DTV monitor, the Interface tab

Figure 2 -25: Interface view (typical)

The tabs displayed in the detail view will depend on which interface is installed. The RF card detail views contain two tabs: Graphs and Interface Event Log. The IP interface contains ﬁve tabs: IP Tables, Diagnostics, Graphs, Interface Event Log, and All Session Event Log. Also displayed are readings panels which display data derived from the installed interface card.

Interface related tabbed views and panels are described in the remainder of this section. Setting up the interface cards is described in Interface Card Conﬁguration. (See page 3-35.)

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–41

Interface View

GbE Interface

In general, the related to the installed interface. Graphs can be selected and displayed from the drop-down menu in the graph panel of the interface detail display. (See page 4-11.)

In the interface Readings panels, the LEDs on the left correspond to the tests in the IF Error collection tree. You can identify which test by selecting View this test in the Interface tree from the associated context menu; the test in the tree will be highlighted when the menu option is selected. The LEDs in the Value column correspond to errors reported by the interface card.

The GbE Interface tree view contains two primary nodes: IF Error Collection and IF Warnin the GbE interface. The detail views are contained under ﬁve tabs: IP Tables, Diagnostics, Graphs, Interface Event Log, and All Session Event Log.

graphs include instantaneous measurement graphs and trend graphs

gs Collection. (See Figure 2-26.) The secondary nodes are speciﬁcto

gure 2-26: Interface view - GbE

2–42 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Interface View

IP Tables Tab

The IP tables vi and the IP card readings panel.

Multicast Database. This table shows the multicast addresses that have been added by the user. (See Figure 2-27.) This table will be shown only when multicast subscription mode has been selected.

The table shows the status of the current multicast sessions: Join Requested, Joined, Not Joined, Shadowed, Leave Pending, and Join Pending. Join Requested is display the network, but no trafﬁchasyetbeenseen. Assoonastrafﬁc is detected, the status will be updated to Join.

IP Trafﬁc. The Trafﬁc view displays all trafﬁc, including, for example, FTP (File Transfer Protocol) trafﬁc and available IP sessions with rates higher than ﬁve network (See Figure 2-27.) The currently selected trafﬁc is highlighted in this table. You cannot select network streams that do not carry a transport stream. The column display can be shown/hidden by selecting/deselecting headings from the column heading context menu. (See Table 2-4 on page 2-44.) If a single subscription mode is selected, all sessions will be suspended except the one currently subscribed.

packets per second on the currently selected interface (copper or optical).

ew contains the Multicast Database table, the IP Trafﬁctable,

ed when Join has been clicked and a message has been transmitted on

Figure 2-27: IP Trafﬁc view (tear-off view)

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–43

Interface View

Table 2-4: GbE I

Column heading Description

Active Indicates the

Session Alia

Source MAC Session sou

Destinatio

Source IP Session so

Destination IP

Source Po

Destination Port

VLAN Tag

Transp

Has TS Yes (c

Mult

TTS (Time Stamp Transport Stream) Yes (check mark), if the session

TS Sync Error Yes (green), if no sync byte or sync loss errors have been

PIT Error

MDI : DF

MDI:MLR

Bit Rate (Kbps) Session bitrate (not the same as the stream bitrate, this includes

nMAC

ort

icast

CC Errors

tError

PTrafﬁc view column descriptions

selected stream. The row is also bolded

User allocated name

rce MAC address

Session tar

Session ta

Session s

Session

VLAN (Vi Includes all parts of the VLAN information not just the identity

RTP (Real Time Protocol) or UDP (User D atagram Protocol) (Others, such as FTP, are possible if there is a sustained ﬂow of anothe

if sync has not been detected in this session

Yes (check mark), if it is a multicast address

is time-stamped.

det

MP reset or startup

Total count of IP corrupted, lost packets, and out-of-order packets in each session since reset or startup

Yes (green), if the PIT (packet inter-arrival time) in each s ession

as not exceeded the user deﬁned limit at any time since reset

h or startup

(Media Delivery Index : Delay Factor) The MDI delay factor is the maximum difference between calculated arrival of stream data and the actual arrival

(Media Delivery Index : Loss Rate) The MDI loss rate is the count of lost or out-of-order ﬂow packets over a predeﬁned time interval

IP wrappers)

get MAC address

urce IP address

rget IP address

ource IP port

target IP port

rtual Local Area Network) tag; "-" where not applicable.

r kind on the network)

heck mark), if sync has been detected in this session. No,

ected in the session since reset or startup

EG CC (continuity count) error count in each session since

At the top of each of the IP tables (Multicast Database and IP Trafﬁc) is a Show ﬁlter option. (See page 4-17.)

2–44 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Interface View

GbE Readings. T Readings panel of the following ﬁgure. (See Table 2-5.)

Previously co Selecting from the drop-down menu is equivalent to applying a conﬁguration in the Conﬁgure Interface dialog box. Use the Edit button to open the Edit Interface Settings. (Seepage3-38.)

he readings described in a table are displayed in the GbE

nﬁgured setups are available in the Preset drop-down menu.

Figure 2-28: GbE interface Readings view (tear-off view)

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–45

Interface View

Table 2-5: GbE i

Field title Description Units

Link Informat

Line Speed Shows the spe

Manual/DHCPv6 Address Manually entered address or address supplied by DHCPv6 server.

Local Link Address

s Address

Stateles

All Sess

The All Session readings provide cumulative readings for the current multicast sessions.

Total Bit Rate

Session Count The number of sessions present on the link.

All Session IP Error Indicates the worst case packet error from all sessions.

ion Information

nterface readings

ion

ed and type of the current physical connection to the network. Line speed; 10, 100, 1000, 1000 (Optical), N/A. FDX - Full-duplex; HDX - Half-duplex.

NOTE. The Gb

half-duplex connections. However, if there are issues with active trafﬁc, such as IGMP dropout, a full-duplex connection will be needed.

The local link address is used for network address autoconﬁguration where no extern

Unique IP

Total bit rate on the currently selected copper/optical port including network headers.

E interface card allows active network participation on

al source of network addressing information is available.

v6 autoconﬁgured address.

Mbps

Kbps

(Error LED)

NOTE. The All Session IP/PIT/TS error LEDs will turn red only when the

related limits deﬁned on the Information screen are exceeded.

All Session PIT Error Indicates the worst case PIT Error from all sessions. (Error LED)

All Session MDI Error Indicates the worst case media delivery index error from all sessions. (Error LED)

All Session TS Error Indicates compliance checking and sync errors for all sessions. (Error LED)

All Bit Rate Error

Selected Session Statistics

Indicates bit rate errors for all sessions. (Error LED)

The Selected Session readings provide readings for the current session.

Lock The LED icon is green when the signal is in sync and is being received

normally. When a signal is present but no lock is achieved, the indicator is

ed. When no signal is found, the indicator is gray.

Session Bit R ate Bit rate of currently selected stream including network headers.

Min Packet Interarrival Time

Mean Packet Interarrival Time

Max Packet Interarrival Time

IP Errored Packet Rate

Minimum packet interarrival time (PIT) of the currently selected stream.

Mean packet interarrival time (PIT) of the currently selected stream.

Maximum packet interarrival time (PIT) of the currently selected stream.

The calculation is maintained per session on the interface card. The ﬁeld displays a red background if the rate is greater than zero.

(LED)

Kbps ns

pkt/min

2–46 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Table 2-5: GbE interface readings (cont.)

Field title Description Units

IP Errored Packet Count

RTP Lost Packet Rate

RTP Lost Packet Count

RTP Out of Order Rate The calculation is maintained per session on the interface card. The ﬁeld

RTP Out of Order Count RTP out of order packet total count (since last reset). Count is maintained

MDI Delay Factor

MDI Media Loss Rate

TS CC Error Total MPEG CC errors on this session since reset or startup. The ﬁeld

Total IP packet error count since the last reset. The count is maintained per session on the interface card, so that the count that is presented when a stream is selected is since reset or startup, not since the session was selected. The ﬁeld displays a red background if the count is greater than zero.

The calculation is maintained per session on the interface card. The ﬁeld displays a red background if the rate is greater than zero. This ﬁeld is not applicable (gray) if protocol is set to UDP.

Total lost RTP packets since the last reset. The count is maintained per session on the interface card, so the count that is presented when a stream is selected is since reset or startup, and not since the session was selected. The ﬁeld displays a red background if the c ount is greater than zero. This ﬁeld is not applicable (gray) if the protocol is set to UDP.

displays a red background if the rate is greater than zero. This ﬁeld is not applicable (gray) if protocol is set to UDP.

per session on the interface card, so the count that is presented when a stream is selected is since reset or startup, and not since the session was selected. The ﬁeld displays a red background if the count is greater than zero. This ﬁeld is not applicable (gray) if protocol is set to UDP.

(Media Delivery Index) The MDI delay factor is the maximum difference between the calculated arrival of stream data and the actual arrival.

The MDI loss rate is the count of lost or out-of-order ﬂow packets over a predeﬁned time interval.

displays a red background if the count is greater than zero.

pkts

pkt/min

pkts

pkt/min

pkts

TS pkts/s

Interface View

NOTE. The TS CC Error count may not equal the count shown in the

Analysis Tests view, for example TR 101 290, test 1.4, Continuity. The interface card starts counting before the DTV processor card, and will continue to count per session, while the DTV monitors other sessions.

Locked Session Information

Source IP IP address of the currently monitored transport stream.

Source Port

Destination IP IP address to which the transport stream is being sent.

Destination Port Port to which the transport stream is being sent.

Type of Service Type of service ﬁeld of the transport stream IP packets.

Datagram Size Datagram size of the transport stream IP packets.

VLAN Tag

Port that is currently receiving the transport stream.

Virtual Local Area Network (VLAN) tag displayed in hex format. This is a two byte value containing priority bit, canonical format indicator (CFI), and VLAN ID (VID).

bytes

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–47

Interface View

Diagnostics Tab

This tab displa results include round trip time, TTL, and time-out messages. The results will be shown in this table after the Ping button is clicked. The address format, IPv4 or IPv6, should be selected in accord with the address format used.

Figure 2-29: GbE interface - Diagnostics

ys ping results in the same format as the DOS ping program. The

2–48 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Interface View

Graphs Tab

This tab allows Readings are also displayed. (See page 2-45.)

a range of measurements to be displayed in graphical form.

Interface Event Log

All Session Event Log

Figure 2-30: GbE interface graphs (tear-off view)

The following trend graphs are available: Lock, Corrupt Packet Rate, Dropped

t Rate, Packet Inter-Arrival Time (Peak and Average), Out-of-Order Packet

Packe Rate, MDI Delay Factor, and MDI Loss Rate. The period over which the trend values are displayed can be selected from the Trend Timescale drop-down menu or from the graph context menus.

On some trend graphs, peak readings are shown in gray; the average readings areshownasingleline.

Also available are graphs of the selected session bit rate and session cumulative bit rate (the sum of bit rates of all sessions).

This log collects all of the interface errors in a single log ﬁle. The log can be saved for detailed examination and manipulation.

his log collects all events. Apart from displaying all events, two other subsets of

T all events can be selected from a drop-down list and displayed, that is Selected Stream Events and All IP Session Events.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–49

Interface View

GbE Operation

The following n interface card. Click the Interface button in the toolbar to access the interface setup.

Before connecting to the network under test, enter a valid Input Card IP address on the interface conﬁguration dialog box, otherwise any router or switch that is connected may add an invalid IP address to its own ARP table (which may have a long time-out).

If the Input Card IP is 0.0.0.0, you cannot be active on the network. Similarly, if the Input Card MAC is 00-00-00-00-00-00, you cannot be active on the network. In the latter case, the GbE card may have been incorrectly conﬁgure

A MAC address is allocated to the GbE interface card during manufacture. If require

The MAC and IP addresses of the GbE interface card must be conﬁgured before

The Network Interaction setting must be one of the active options when you are tr an end point for unicast and multicast trafﬁc.

IGMP ( be sent when the Network Interaction mode is set to passive.

otes are included to assist with the setup and operation of the GbE

d, you can change it using the Conﬁgure Interface dialog box.

any of the other GbE interface settings.

ying to send or receive pings on the network or when you are acting a s

Internet Group Manageme nt Protocol) join and ping commands cannot

P (Small Format Pluggable) module is used to facilitate the Ethernet

An SF Optical interconnection feature. The GbE interface card has been tested with SFP module(s) ordered from Tektronix. SFP modules purchased from a supplier other than Tektronix are not warranted to work.

Only optical SFPs are supported; copper SFPs are not supported.

Only full duplex operation is supported by the GbE interface card.

rafﬁc ﬂows are displayed in the Trafﬁc screen only if they have a total pa cket

T rate of > 5 network packets per second.

The Trafﬁc screen will show all trafﬁc, for example, FTP. For non-transport streams, the DTV monitor will perform IP level tests only.

Only transport streams can be selecte d for monitoring; transport streams are indicated by a check mark in the TS column.

2–50 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Interface View

COFDM Interfa

Readings

COFDM (Coded Orthogonal Frequency Division Multiplexing).

The following LED indicators are available on the Readings panel:

Overall RF Lock. All the lock indicators are showing "in lock", and the signal is being received normally.

TPS Lock. Transmission Parameter Lock, showing true if the ruggedly modulated TPS is being received.

AGC Lock. Automatic Gain Control lock, showing the received signal is within AGC control range.

SYR Lock. Symbol Recovery Lock, showing that the FFT symbol recovery system is in lock, allowing constellation data to be extracted.

FEC Lock. Showing the Reed Solomon Forward Error Correction system is in lock, and applying error correction to the received data.

Grap

The following graphs are available on the Graphs panel:

RF Constellation (all data carriers). When the receiver is in RF lock, the

stellation points are displayed. According to ETR290, only the data pilots are

con used for MER and EVM calculation. The samples collected are not real time, so there is some dwell (delay) before a complete constellation is displayed. The persistence of the display can be varied using the Persist slider control at the bottom of the graph.

MER and EVM calculations are performed on the constellation data according to the formulae given in TR 101 290. This calculation speciﬁcally excludes the TPS carriers.

Overall SNR (all continuous pilots). A time line graph of measured Signal to Noise Ratio is displayed, over the preceding 255 seconds.

Overall SNR (all continuous pilots). A time line graph of measured Modulation Error Ratio is displayed, over the preceding 255 seconds.

Linear Amplitude response (selected carriers). A linear amplitude response is shown for the carriers selected using the carrier START and STOP controls. Allows you to view and zoom in on frequency dependent amplitude distortions.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–51

Interface View

8PSK Interface

Readings

Impulse Respon

distortions, particularly echoes, to be displayed relative to the main signal. Echoes occurring before and after the main signal are displayed. The graph is derived from the linear amplitude response, transformed into the time domain. The card settings can be used to extend the time range of the impulse graph.

NOTE. The impulse graphs are indicative only; amplitudes farther away from

the 0 dB peak

PSK (Phase shift keying).

The following LED indicators are available on the Readings panel:

RF Lock. Indicates when the RF receiver sections are in lock and receiving normally.

FEC Lock. Indicates when the Forward Error correction (DVB or turbo coded) is in lock and the data is being processed to give Transport Streams.

se. A channel response graph is shown, allowing time related

tend to be reported low.

Graphs

DVB-S2 PSK Interface

Readings

The constellation display is a representation of the digitally modulated carrier’s instantaneous phase and amplitude for each transmitted symbol. A good constellation will have well-deﬁned dot clusters in tight formations; each cluster shouldbecenteredinagridoverlaysquare. The overall shape of the dot clusters should form a square as represented by the outer edges of the grid.

The Persistence setting in the graph context menu s thedotspersistonthegraph.

DVB-S2 PSK (Phase shift keying).

The following LED indicators are available on the Readings panel:

Signal Acquisition:

RF Lock. Indicates when the RF receiver sections are in lock and demodulating the input successfully.

Front End Lock. Indicates when the FEC (Forward Error Correction) is in lock.

Input Sync Active. Indicates that multiple stream frames are occurring within

the received signal, and that the receiver has correctly locked on to the frame

ets the time in seconds that

2–52 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Interface View

Graphs

boundaries. Th Conﬁgure Interface dialog box. (See page 3-49.)

Constellation. The constellation display is a representation o f the digitally modulated carrier’s instantaneous phase and amplitude for each transmitted symbol. For the DVB-S2 formats, a number of different constellations can be displayed, including QPSK, 8SPK, 16APSK, and 32APSK. QPSK and 8PSK constellation points lie on a single circle around the graph origin; two and three concentric circles of points form the 16APSK and 32APSK constellations. The APSK modes are used to carry higher bit rates, but at reduced resilience to noise and distortion in the transmission channel.

The Persistence setting in the graph context menu sets the time in seconds that thedotspersistonthegraph.

Also available are the following graphs, which display the trend of measurements over user-selected periods:

MER Ratio Trend. (Modulation Error Ratio) Displays the received MER values over the selected period. Note that the MER is calculated after the receiver equalizer.

EVM Trend. (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 p ercentage (ref: TR 101 290 Annex).

e synchronization function can be switched on and off in the

Other trend graphs include Lock, Input Power, Carrier-to-Noise Ratio, and Pre Reed-Solomon/BCH BER (Bose, Chaudhuri, and Hocquenghen (BCH) bit error rate).

QPSK (L-Band) Interface

Readings

The following LED indicators are available on the Readings panel.

Lock If the interface is able to acquire full lock onto the channel and is receiving the signal correctly, the Lock indicator will light up green. Red indicates that lock cannot be achieved. Gray indicates that a signal is not present.

MER (dB). (Modulation Error Ratio) Provides a single "ﬁgure of merit" for received signal. It is t he ratio of "ideal signal vectors" to "errored signal vectors" expres

290).

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).

Phase Noise Trend. Displays embedded phase noise in the received signal, in degrees (rms) jitter, over the selected period.

sed in dB. MER is similar to a signal to noise measurement (ref: TR 101

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–53

Interface View

Rate) Provides an indication of the Forward Error Correction

Graphs

BER. (Bit Error

workload.

TEFs. (Transport Error Flag or TEI transport error indicator) Indicates the Forward Error Correction failure.

The Persistence setting in the graph context menu sets the time in seconds that the dots

rmasquareasrepresentedbytheouteredgesofthegrid.

persist on the graph.

QAM (Annex A and Annex C) Interface

Readings

Graphs

(See pa

(See page 2-53, QPSK (L-Band) Interface.)

ge 2-53, QPSK (L-Band) Interface.)

2–54 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Interface View

QAM (Annex B II

Readings

Graphs

) Interface

The following LED indicators are available on the Readings panel.

Tuner Freque

FEC Lock. Forward Error Correction Lock, which displays the status of the

deinterleaver and Reed Solomon decoder.

RF Lock. If full lock onto the channel is acquired and it is receiving the signal correctl achieved, the indicator is red. When no signal is found, the indicator is gray.

The following graphs are available on the Graphs panel.

RF Constellation. I and Q data are collected from the QAM front end and displayed as a conventional constellation of 256 points by 256 points. The samples collected are not real time, so there is some dwell (delay) before a complete constellation is displayed. T he persistence of the display can be varied using the Persistence option in the tools drop-down menu in the top right corner of th

MER and EVM calculations are performed on the constellation data according

he formulas given in TR 101 290.

to t

ncy. The center frequency of the received channel.

y, the LED will light up green. When a signal is present but no lock is

e graph panel.

SNR after equalizer. This graph represents the signal-to-noise ratio over time, typically over 256 seconds. It is useful for examining signal-to-noise trends; for example, if an alarm condition has been breached, the graph can be used to examine trends in the signal-to-noise performance before the alarm occurred.

OTE. The Equalizer graph amplitude values are approximate.

Equalizer. This graph shows the status of the equalizer taps, and gives an estimate of the channel s tate. If there are echoes or other time related distortions on the signal, the Equalizer display will display the amplitude of the corresponding tap correction values versus time.

MER. This graph gives a time record of MER over the last 255 seconds.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 2–55

Interface View

8VSB Interfac

Readings

Graphs

VSB (Vestigial sideband)

The following LED indicators are available on the Readings panel:

Tuner Frequency. The center frequency of the received channel.

RF Lock. Th

being decoded normally.

The following graphs are available on the Graphs panel.

Symbol Distribution. This graph shows the samples received over time in a falling vertical line display. In a noise free system, all samples would fall on one of the eight vertical lines. However, in normal systems the samples will be displayed distributed around the vertical lines. At the bottom of the graph display, the sample values are accumulated into a distribution histogram. The histogram can

played in a linear or logarithmic format.

be dis

Signal to Noise (SNR) (after equalizer). The SNR values are plotted in a pen-trace style, giving a brief history of the collected values.

is indicates that all decoding systems are in lock and the signal is

Equivalent MER. An MER (Modulation Error Ratio) calculation is performed

he in-phase (I) data samples. The quadrature data samples are ignored in

on t this calculation.

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.

OTE. The Equalizer graph amplitude values are approximate.

2–56 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Conﬁguration

Stream Conﬁguration

Conﬁguration of the DTV monitor and the RUI are collected together in the Conﬁguration dialog box, which can be accessed using the Conﬁ guration button on the toolba

The left panel contains a tree view of the available conﬁguration items under the primary n od in the remainder of this section. When changes are made to the settings in individual nodes, the node name in the tree view is italicized and an edited indicator (*) is added to the name. The name and the indicator are reset when the change is applied and accepted. A brief explanation of the node is displayed at the topoftherightpane;clickthechevronbuttoninthetoprightcornertohidethe summary

The Stream conﬁguration page can be accessed using Conﬁguration (toolbar) > Stream. pages: Recording Settings, Test Parameters, PCR Filters, Slot Management, and Schedule Management. Each page can be accessed by selecting the relevant node in the tree view.

r. (See Figure 3-1.)

es: Stream, Device, and Preferences. Individual nodes are described

and increase available screen space.

The Stream section of the conﬁguration dialog box includes the following

Figure 3-1: Conﬁguration dialog box

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 3–1

Stream Conﬁguration

Stream Global

Settings

Select Stream in the tree view to access the Stream conﬁguration global settings. (See Figure 3-2.)

NOTE. The ch

immediately.

anges made to the Miscellaneous check boxes are applied

Figure 3-2: Stream global settings conﬁguration page

3–2 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Stream Conﬁguration

Stream Name

Miscellaneous Settings

The stream name 128 characters or less in length. The name is used in the RUI title bar and the Button bar.

Stream Learning Mode. Enables learning mode, in which the DTV monitor adjusts the analysis limits to match the presented data.

Few streams conform exactly to the interpretation standards. By adjusting parameters, learning mode ensures that "average" streams do not cause excessive errors. Wh

Enable Thumbnails. Enables thumbnail generation for viewing in the RUI.

Thumbnail support must be installed on the RUI client PC if the DTV monitor RUI is to be used to view thumbnails. Instructions for installing the thumbnail support are included in the DTV Monitor Quick Start User Manual.

Template Checking. When enabled, applies the current template to the stream.

Maintenance Mode. When enabled, no alarms (TTL, relays or audible) will be

raised for the stream. The DTV monitor 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. In this mode, all buttons are colored black.

ile learning mode is enabled, an icon is displayed in the RUI status bar.

identiﬁes the stream in the DTV monitor; the name must be

Reset Actions

art Stream. Returns the DTV monitor tests to the initial state upon acquiring

Rest

a stream; all tests are reset and all SI information is ﬂushed. This is useful if you make a seamless switch between nearly identical streams. I f there is no change in the SI identity and/or versions to inform the DTV monitor that it is a new stream, you can reset the stream manually here.

ctory Default. Resets all conﬁguration items, including interface card settings,

to their factory defaults.

Reset SI Throttle. Resets the SI table processing throttle. The status of this throttle is shown graphically on the RUI status bar.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 3–3

Stream Conﬁguration

Recording Set

tings

To examine ofﬂine events that occur in a stream, recordings can be made whose start is triggered by an event, manually, an external TTL input, or by an alarm.

The recording is held in RAM and can be downloaded from the DTV monitor to the client PC for storage and further analysis. The ﬁle is stored as a valid MPEG ﬁle; howeve analysis products to reconstruct the real-time timing artifacts present at the time of recording.

The Recording Settings conﬁguration page can be accessed using Conﬁguration (toolbar) > Stream > Recording Settings. (SeeFigure3-3.)

r extra information is encoded in the ﬁle to allow Tektronix MPEG

Figure 3-3: Recording Settings c onﬁguration page

3–4 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Stream Conﬁguration

Recording Buffer Settings

Pretrigger Recordings

The recording b

Available Memory. The memory available for recording.

Available Packets. The maximum number of packets that can be recorded in

the available memory.

Buffer Size. You can set the number of packets that ar e to be recorded.

Pre Trigger. You can set the percentage of a stream that will be recorded before a

trigger event.

A percentage of a stream can be recorded before a trigger event as speciﬁed by the pretrigger setting. The start of recording is dependent upon the selected trigger type. However, the stream is b eing recorded in memory at all times; the available memory is used as a circular buffer, in that it is ﬁlled and written over

uously until a trigger event occurs.

contin

NOTE. A circular buffer is an area of memory that stores a continuous stream of

data by starting again at the beginning of the buffer after reaching the end.

uffer is the amount of memory available to store recordings.

As soon as the trigger event occurs, recording will begin. Recording continues until the memory buffer is full. The recording will remain in memory until it is manually cleared, typically after it is uploaded to a client PC.

The pretrigger set up can be changed only w hen no recording activity is in progress.

The pretrigger setting allows the proportion of data saved before a trigger event to be speciﬁed as a percentage of the ﬁnal recorded ﬁle. Set the percentage by dragging the Pre Trigger slider.

The proportion of pretrigger data might be less than speciﬁed if the trigger event occurred before enough packets were recorded in the circular buffer (particularly after clearing the buffer).

For example, if the available memory will hold a 20 second recording, with 25% pretrigger speciﬁed and an event-triggered recording starting ﬁve seconds or more into the run, the contents of the recorded ﬁle will be as illustrated in the following ﬁgure.

MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference 3–5

Stream Conﬁguration

Figure 3 -4: 25% pretrigger e xample

If the Trigger event was detected earlier than ﬁve seconds into the run, the 20 second ﬁle will contain all of the data up to the trigger. If recording was triggered at three seconds only the ﬁrst 15% of the ﬁle would hold pretrigger data. The ﬁle con

tents would be as illustrated in the following ﬁgure.

Figure 3 -5: 15% pretrigger e xample

3–6 MTM400A, IPM400A, and RFM300 DTV Monitors Technical Reference

Tektronix MTM400A, IPM400A,,RFM300 User manual

Specifications and Main Features

Frequently Asked Questions

User Manual