MTM400A

Digital TV Monitor
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Features & Benefits

  • Multilayer, multichannel, remote monitoring and measurement at RF and TS layers to DVB, ATSC, DCII, and ISDB-T/Tb standards with content-checking support for both MPEG-2 and H.264/AVC
  • Displays key RF monitoring parameters for DVB-T and DVB-S/S2 interfaces to provide early indication of signal degradation before any picture impairment is visible to the end customer (Note: In DVB-S2 mode only Transport Stream inputs are supported)
  • No additional analysis software is needed; all confidence and diagnostic analysis is carried out from the MTM400A alone
  • When used in conjunction with the VQS1000 Video Quality Software application, provides reliable and sophisticated analysis algorithms applied to decoded MPEG-2 or H.264 video to identify stuck, black, macro blocking, and compression artifacts

Applications

  • Contribution and Primary Distribution
    • Terrestrial Distribution
    • Cable Headend Monitoring
    • DTH or Network Operator Satellite Uplink Monitoring
  • IPTV Ingest and Headend Monitoring

Introduction

The MTM400A provides a complete solution for real-time transmission monitoring of MPEG Transport Streams over RF and ASI interfaces. Powerful confidence monitoring capability and deep diagnostic measurements are both combined into a single integrated solution. This supports Broadcasters, Cable, Satellite, and Telecommunication Operators to deliver superior QoS levels with reduced operational expenditure.

Deployed at key network nodes, the MTM400A provides an intuitive and simplified presentation of video quality and diagnostic information. This supports the delivery of superior Qualify of Service (QoS) levels in an increasingly complex broadcast environment.

When used together with VQNet™, facility and network-wide views allow engineers to sectionalize network problems.

Product Information

  • Critical RF measurements; MER and EVM, constellation displays, RF levels, channel power, SNR, BER, Phase Noise, and Impulse Response
    • Provides early indication of signal degradation before any picture impairment is visible to the end customer
    • DVB-S2 interface includes 16 and 32APSK for contribution and distribution applications
  • Video/Audio content checking for both MPEG-2 and H.264/AVC
    • Thumbnail decode and display of multiple channels, simultaneously provides a visual check of content with encoding parameters available to the user (such as codec type, profiles and levels, aspect ratio, program guide event information, etc.)
    • Backhaul of actual video and/or audio allows content to be fed back to the central monitoring point to see and hear the content being broadcast (encrypted content can be routed to a STB for hardware decode)
  • PSI/SI/PSIP/ARIB SI analysis and repetition rate graphing
    • Allows broadcasters to determine that the system and service information is present and correct in the Transport Stream
  • "Green Stream" learning mode
    • Allows monitoring by exception and elimination of false alarms
  • Multiplex view
    • Allows an at-a-glance view of program utilization over an extended period allowing the user to see if bandwidth spikes occurred
  • Unique 2-level alarms
    • Uniquely provides advanced warning of impending problems to avoid customer complaints. Single-level alarming means the alert can only be generated. With 2-level alarms, separate warning and failure alarms are not possible
  • FlexVuPlus™
    • Uniquely presents simplified presentation of video quality and diagnostic information
  • Filtered logs
    • Allows diagnostics to be performed at the TS, Program, or PID levels to "zoom in" on problems quickly
  • Simultaneous connection of multiple remote users and Multi-sink SNMP traps for Network Management Systems (NMS)
    • Provides early visibility of problems to key individuals throughout the organization, supporting quicker notification and corrective action
    • Allows multiple users and/or NMS to access the MTM400A simultaneously
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FlexVuPlus™ configurable windows with DVB-S2 display.

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Video and audio content monitoring to ensure QoE is maintained.

MTM400A Diagnostic Analysis Software Option
  • Trigger recording to be captured and rapidly analyzed in greater depth using powerful offline analysis tools such as the Tektronix MTS4SA software
  • Exception monitoring with simple, automated template generation from reference streams. Template testing checks a number of key parameters to ensure the Transport Stream has been constructed as intended. These parameters include the Transport Stream ID and Network ID, the number of programs in the multiplex, that each program has all of its components (Video, Audio, Data, Teletext, Subtitles) and Conditional Access (CA) status
  • Advanced Timing Analysis including unique PTS-PCR graphs for real-time buffer measurements. This provides indication of encoding and multiplexing errors and in-depth PCR analysis; the resulting graphical views enable timing and jitter measurements to ensure correct operation of the network
  • Bit rate testing determines whether PIDs, programs, services, or user-defined groups of PIDs are within user-definable limits, ensuring correct multiplex operation. Tektronix proprietary PID variability test gives indication of PID bit rate variation to assess effects of statistical multiplexing
  • Comprehensive service logging enables verification of service level agreements to ensure contractual obligations are met
  • The channel polling capability for the MTM400A, combined with RF interfaces, allows up to 200 RF channels to be monitored in a repeating cyclical measurement process. Control and configuration of the polling is undertaken using flexible XML scripting. This polling ability makes a single MTM400A a broader tool, monitoring large numbers of network points in a time-sampled measurement mode
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Advanced Timing Analysis including PTS-PCR for real-time buffer measurements to give indication of encoding and multiplexing errors.

Technical Overview

  • SCTE-142 and A/78 monitoring modes classify five distinct levels of importance
    • Transport Stream Off Air (TOA), Program Off Air (POA), Component Missing (CM), Quality of Service (QoS), Technically Nonconformant (TNC)
    • Enables filtering and display only of errors that require immediate attention
  • Comprehensive TR 101 290 Priority 1, 2, and 3 MPEG measurements
    • Provides in-depth analysis of Transport Stream, syntax, timing, and content to support root-cause analysis of system errors
  • Superior PCR measurements (PCR_OJ, DR, and FO)
    • PCR_OJ enable deterministic measurements on Transport Stream and network induced jitter allowing such errors to be isolated
    • DR and FO measurements allow diagnosis of longer-term system degradation
  • PSI/SI/PSIP/DC-II conformance and consistency checking
    • Closed Caption (EIA608/708 and SCTE20/21) and Regional Ratings Descriptor (RRT) check ensures conformance to regulations
    • SI/PSI/PSIP testing ensures set-top box performance (channel change, EPG, etc.) can be verified
  • SCTE 35 DPI monitoring
    • Allows analysis and diagnostics of "splice" advertising and other local content
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SCTE-142 and A/78 modes classify five distinct levels of importance.

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EPG View
 

 

Characteristics

Power Requirements

Characteristic

Description

Power Consumption (Nominal)

40 VA

Voltage

100 to 240 V

Frequency

50/60 Hz

Monitoring

Characteristic

Description

Data Rate

   Maximum data rate

155 Mb/s*1

   Minimum data rate

250 Kb/s

*1 Maximum Transport Stream bit rate is dependent on Transport Stream content and depth of analysis being performed. Depth of stream analysis is handled gracefully if SI/PSIP maximum content is exceeded to ensure critical measurements continue to be performed.

ATSC A/78A and SCTE142 Error Classifications

Classification

Description

TOA

Transport Stream Off Air

POA

Program Off Air

CM

Component Missing

QoS

Quality of Service

TNC

Technically Nonconforming

TR 101 290 Tests and Measurements

1st Priority Measurements

2nd Priority Measurements

3rd Priority Measurements

1.1 Ts_sync_loss

2.1 Transport error

3.1a NIT_actual_error

1.2 Sync_byte_error

2.2 CRC_error

3.1b NIT_other_error

1.3a PAT_error_2

2.3a PCR_repetition_error

3.2 SI repetition error

1.4 Continuity_count_error

2.3b PCR_discontinuity_

indicator_error

3.4a Unreferenced PID

1.5a PMT_error_2

2.4 PCR_accuracy_error

3.5a SDT_actual_error

1.6 PID_error

2.5 PTS_error

3.5b SDT_other_error

   

2.6 CAT_error

3.6a EIT_actual_error

   

   

3.6b EIT_other_error

   

   

3.6c EIT_PF_error

   

   

3.7 RST_error

   

   

3.8 TDT_error

DVB-S2 Interface Characteristics (Option S2)

Characteristic

Description

Input Frequency Range

950 MHz to 2150 MHz with 1 MHz step size

Input Signal Amplitude Range

–60 dBm to –30 dBm for a CBER of <1e–6

Modulation Format

QPSK in accordance with DVB-S (ETSI EN 300 421) QPSK, 8PSK, 16APSK, and 32APSK in accordance with DVB-S2 (ETSI EN 302 307) including Constant and Variable Coding and Modulation (CCM and VCM)

Modulated Baud Rate

1 MBaud min, 60 MBaud max

Code Rate

DVB-S: 1/2, 2/3, 3/4, 5/6, 6/7, 7/8

DVB-S2: 1/4, 1/3, 2/5, 1/2, 3/5, 2/3, 3/4, 4/5, 5/6, 8/9, 9/10

FEC Modes

Viterbi and Reed-solomon in accordance with DVB-S

LDPC and BCH in accordance with DVB-S2

Short and Normal FEC blocks in accordance with DVB-S2

Roll Off

0.2, 0.25, 0.35

Connector Style

F-style

Input Termination Impedance

75 Ω nominal

Input Return Loss

>6 dB min, 950 MHz to 2150 MHz

LNB Supply Voltage

Selectable; 13.0 V ±1.5 V or 18.0 V ±1.5 V, with 100 Ω, 5 W resistor load

LNB Supply Maximum Current

200 mA max

LNB 22 kHz Signaling Frequency

17.6 kHz min, 26.4 kHz max (22 kHz ±20%)

LNB 22 kHz Signaling Amplitude

600 mVp-p with 100 Ω load

LNB Mode

DiSEqC 2

Ultimate Modulation Error Ratio

30 dB with Equalizer

DVB-S2 Measurement Characteristics (Option S2)

Characteristic

Description

RF Lock

RF lock indicated to the user by LED and Status on UI

Input Level

(Signal Strength)

Range: –60 dBm to –30 dBm

Resolution: 1 dBm

Accuracy: ±5 dBm

EVM (Error Vector Magnitude)

Display Range: ≤4.0% to ≥30.0% RMS

Resolution: 0.1%

Accuracy: ±20% of reading

MER (Modulation Error Ratio) with Equalizer

Display Range: 10 to 30 dB with Equalizer

Resolution: 1 dB

Accuracy: ±2 dB for range 10 to 20 dB

CNR (Carrier to Noise Ratio)

Display Range: 10 to 30 dB

Resolution: 1 dB

Accuracy: ±2 dB for range from 10 to 28 dB

Phase Noise

Display Range: 5 to 45° RMS

Resolution: 1°

Pre Viterbi BER

Pre-Viterbi BER displayed

Pre Reed Solomon (RS) BER

Pre-RS BER displayed

Pre LDPC BER

Pre-LDPC BER displayed

Pre BCH BER

Pre-BCH BER displayed

Post RS BER and TEF (Transport Error Flag)

Post Reed Solomon BER (TEF ratio), TEF rate and number of Transport Error Flags (TEF count) displayed to the user

Transmission Parameters

All Coding and Modulation parameters are indicated to the user in the UI. Transport Stream monitor must be tuned to a valid Transport Stream in order to report RF transmission parameters

Constellation

The RF constellation displayed on the UI

COFDM Interface Characteristics (Option CF)

Characteristic

Description

Input Frequency Range

50 MHz to 858 MHz with 166.7 or 62.5 kHz step size

Tuning Accuracy

Better than ±50 ppm typical

Channel Bandwidth

6 MHz, 7 MHz and 8 MHz (SW selectable)

Connector Style

F-type with BNC adaptor

Input Termination Impedance

75 Ω nominal

Input Return Loss

7 dB typical 50 MHz to 858 MHz

Rx Lock Status

Indicated by LED on rear panel and by the UI

Modulation Scheme Supported

QPSK (4QAM), 16QAM, and 64QAM modulation

Transmission Modes

2K carriers and 8K carriers

Hierarchical Modes

All hierarchies are be supported, including no hierarchy, and alpha = 1, 2, and 4

Viterbi Puncture Rates

1/2, 2/3, 3/4, 5/6, 7/8

Guard Interval

1/32, 1/16, 1/8, 1/4

Spectrum Polarity

The receiver will operate with both inverted and normal spectral polarity

Input Signal Amplitude Range

QPSK (4QAM): –85 dBm to –10 dBm (24 dBuV to 99 dBuV) typical

16QAM: –80 dBm to –10 dBm (29 dBuV to 99 dBuV) typical

64QAM: –72 dBm to –15 dBm (37 dBuV to 94 dBuV) typical

COFDM Measurement Characteristics (Option CF)

Characteristic

Description

Carrier Offset

Carrier offset is measured from the tuned channel frequency to a accuracy of ±10 ppm typical

This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average

   

Display Range

Resolution

Accuracy

SNR (Signal to Noise Ratio)

6 dB to 40 dB for QPSK (4QAM)

11 dB to 40 dB for 16QAM

16 dB to 40 dB for 64QAM

1 dB

±1 dB to 30 dB SNR (measured at –30 dBm in high-resolution mode) typical

EVM (Error Vector Magnitude)

1% to 30% RMS, for QPSK

1% to 20% RMS, 16QAM

1% to 8.5% RMS, 64QAM

0.1%

MER (Modulation Error Ratio) with Equalizer

Both MER Peak and MER Average are displayed as measured across all carriers

6 dB to 37 dB for QPSK (4QAM)

11 dB to 37 dB for 16QAM

16 dB to 37 dB for 64QAM

0.1 dB

±1 dB to 30 dB (measured at –30 dBm in high-resolution mode) typical

This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average

Constellation

The RF constellation is displayed on the UI

Channel Impulse Response

Display of channel impulse response

Channel Spectral Response

Active receive channel spectrum, RF level vs. frequency

BER (Bit Error Ratio)

Pre FEC, BER, and Error Sec BER values are displayed. This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average

Post Reed Solomon BER

Post RS BER (Uncorrectable Error Count) displayed. This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average

TEF (Transport Error Flag)

Alarm generated on detection of a TEF

Turbo 8PSK Interface Characteristics (Option EP)

Characteristic

Description

Interface Option EP provides both QPSK (L-band) and Turbo 8PSK interface and measurement capability. For non-Turbo code modulation formats the Option S2 card is recommended.

Input Frequency Range

950 MHz to 2150 MHz with 100 kHz step size

Modulation Format

Turbo 8PSK*2

Modulated Baud Rate

1 MBaud min, 30 MBaud max

Turbo Viterbi Values Supported

2/3, 3/4 (2.05), 3/4 (2.1), 5/6, 8/9

Turbo FEC

Turbo Code

Connector Style

F-style

Input Termination Impedance

75 Ω nominal

LNB Supply Voltage

Selectable; 13.0 V ±1.5 V or 18.0 V ±1.5 V

LNB Supply Maximum Current

200 mA max

LNB 22 kHz Signaling Frequency

17.6 kHz min, 26.4 kHz max (22 kHz ±20%)

LNB 22 kHz Signaling Amplitude

600 mVp-p with 100 Ω load

Modes Supported

Turbo 8PSK

*2 Please note that the Turbo 8PSK option does not support nonturbo 8PSK (DVB-DSNG), or DVB-S2. For DVB-S2 please use DVB-S/S2 interface card (Option S2).

Turbo 8PSK Measurement Characteristics (Option EP) RF Measurements

Characteristic

Description

RF Lock

RF lock is indicated to the user by an LED on the rear panel and a status icon on the UI

   

Range

Display Range

Resolution

Accuracy

Input Level (Signal Strength)

–60 dBm to –30 dBm

1 dBm

±5 dBm typical

EVM (Error Vector Magnitude)

≤4.0% to ≥30.0% RMS

0.1%

MER (Modulation Error Ratio) with Equalizer

10 to 26 dB with Equalizer

1 dB

±2 dB typical for range 10 to 20 dB

SNR (Signal to Noise Ratio)

5 to 35 dB

1 dB

±2 dB typical for range from 5 to 30 dB

This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average

Pre Reed Solomon (RS) BER

Pre-RS BER is displayed on the UI

Post RS BER and TEF (Transport Error Flag)

Post Reed Solomon BER (TEF ratio), TEF rate, and number of Transport Error Flags (TEF count) are displayed on the UI

Constellation

The RF constellation is displayed on the UI

Environmental

Characteristic

Description

Temperature

   Operating

+5 °C to +40 °C

   Nonoperating

–10 °C to +60 °C

Humidity

   Operating

Maximum relative humidity 80% for temperatures up to 31 °C decreasing linearly to 50% relative humidity at 40 °C

   Nonoperating

10% to 95% relative humidity, noncondensing

Altitude

   Operating

0 m to 3000 m (9800 ft.)

   Nonoperating

0 m to 12000 m (40000 ft.)

Random Vibration

   Operating

5 to 500 Hz, GRMS = 2.28

   Nonoperating

.5 to 500 Hz, GRMS = 0.27

Functional Shock

   Operating

30 G, half sine, 11 ms duration

Electromagnetic Compatibility

   EC Declaration of Conformity

Meets EN55103. Electromagnetic environment E4

   Australia / New Zealand Declaration of Conformity

Meets AS/NZS 2064

   FCC

Emissions are within FCC CFR 47, Part 15, Subpart B, Class A limits

Safety

Meets 73/23/EEC, EN61010-1, UL3111-1 and CAN/CSA 22.2 No. 1010.1-92, IEC61010-1

Physical Characteristics

Dimension

mm

in.

Height

44

1.73

Width

430

17.13

Depth

600

23.62

Weight*3

kg

lb.

Net

6.0

13.3

Shipping

9.0

19.7

Required Clearance

mm

in.

Top

0

0

Bottom

0

0

Left side

Standard 19 in. rackmount

Right side

Standard 19 in. rackmount

Front

Clearance for handles required

Rear

Clearance for connectors required

*3 Weight does not include optional interface cards.

 

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