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ATSC MPEG Transport Stream Monitor


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Features & Benefits

  • 1 to 4 Streams Monitored in Real Time Giving ATSC Instant Status of All Inputs
  • Integrated, Modular Design Allows Non-Expert Users to Perform High Level Monitoring and Experts to Drill Down Using Detailed Analysis Tools
  • Scalable, Flexible Design Expands to Meet Your Changing Monitoring Needs
  • Range of Interfaces Enables Plug and Play Connectivity
  • Enhanced Broadcast Transmission Quality Control
  • Provides Lower Operating Costs and Enhanced Bandwidth Utilisation
  • Remote Control Via Web Browser Using Industry Standard SNMP on Ethernet
  • Error Logging
  • Analysis of PSI/PSIP with Graphical Display
  • Configurable Alarm Outputs
  • Comprehensive Error Checking

The System Solution for ATSC Digital Video Multiple Stream Real Time Monitoring

AT970, The System Solution Designed for the Broadcast Environment

AT970 has been specifically designed to meet the exacting requirements of DTV real-time monitoring in a transmission environment. Following the FCC's mandate for a rapid deployment of digital terrestrial and cable television, it is now necessary to ensure that digital broadcasts can be decoded by subscribers' set top boxes (IRDs) and that pictures are of optimum quality. AT970 helps to achieve this by continuously monitoring up to four transport streams in real time, verifying that they conform to the MPEG-2 and ATSC specifications.

In a modern broadcast environment, transport streams originate from a variety of sources, including contribution links and pre-encoded material. These sources need to be monitored in real time prior to the final multiplex and transmission.

AT970 is designed to meet your complete real-time monitoring requirement, forming part of a network control system solution. AT970 provides you with a cost effective, flexible and upgradable monitoring architecture.

Put simply, AT970 future proofs and protects your investment in network monitoring.

Transmission Quality Control

Through continuous monitoring at multiple points in the broadcast chain, stream errors and equipment failures can be quickly detected and rectified.

Comprehensive Error Checking

AT970 detects errors like PSIP failures, which cannot be detected by a wall of picture monitors.

Lower Operating Costs

Incorporated into a networked monitoring system, multiple AT970 units can be linked to a central monitoring point for efficient management.

Reduced Operator Training

AT970 has been designed to be used by operators who are not MPEG/ATSC experts. The intuitive GUI presents error status in a simple, powerful format which is easily understood.

Increased Equipment Reliability

AT970 provides a detailed fault log which can be used to pinpoint regular failures, allowing remedial action to be taken.

Technical Overview

AT970 integrates seamlessly into a monitoring and control network, allowing the entire broadcast chain to be monitored from a single point, thus reducing manpower requirements. An intuitive graphical user interface (GUI) provides at-a-glance status information for the entire broadcast network. Its simplicity reduces the need for operator training. Further in-depth error reporting is available for each individual transport stream.

AT970 provides continuous real-time monitoring of up to four DTV transport streams simultaneously, performing essential ATSC and MPEG measurements as well as monitoring the bit rate of each service against user-defined limits. All test limits are user configurable.

AT970 performs all measurements in real time and displays PSI/PSIP table information from each TS.


AT970 is supplied ready to mount in a 19" rack.


Key AT970 Features:
  • TS error status available at a glance
  • Complete remote control
  • Configurable alarm outputs, TTL and closed contact relay
  • Multiple industry standard TS interfaces available
Real Time Measurements

AT970 performs all of the essential ATSC and MPEG-2 measurements to ensure that the TS is present and compliant with the standards.

AT970 also monitors program bit rate against user defined limits, providing early indication of multiplexer malfunctions, or infringement of minimum bit rate limits for statistically multiplexed streams. AT970 dynamically represents individual PID bit rates and displays the information carried, be it video, audio, EMM or ECM.

Remote Monitoring and Control

For broadcasters requiring a fully integrated monitoring tool, AT970 is the solution, providing full remote control and monitoring via Ethernet using Simple Network Management Protocol (SNMP). Multiple AT970 units can be linked to the global control network. The status of the broadcast chain can be checked by simply connecting to the monitoring network using a PC with a web browser.

Local Monitoring and Control

For applications where networking and remote control is not required AT970 can be used stand-alone.

Front panel LED indicators provide transport stream error status at a glance. The VGA-integrated color display supports an intuitive GUI, minimizing operator training. The display provides PSI/PSIP table information, multiplex occupancy views, detailed error information and alarm configuration to enable fast fault detection and isolation.


Error Logging

With AT970 each stream has its own dedicated error log providing a history of the status of each TS.

The error log can be inspected remotely and saved for future reference. This assists fault tracking, allowing error statistics to be compiled, pinpointing common equipment failures and enabling remedial action to be taken.


AT970 provides both remote and local error alarms for each monitored TS. Remote alarms are provided by the remote control protocol with local alarm outputs provided as TTL and closed contact relay alarm outputs.

All alarms are user-configurable, and can be used to trigger other equipment like the AD953-II MPEG Test System, which can record the TS or drive other equipment like audible alarms which can alert operatives to error conditions.

Transport Stream Interfaces

AT970 has been designed to integrate into a transmission environment and supports all of the following TS interfaces:

  • SMPTE310M
  • Parallel Interface (SPI)
  • ASI
  • L-Band, QPSK
  • ECL Serial
  • DHEI

A different interface can be used on each of the four monitors within one AT970.


Product Specifications

Voltage - 90 to 135 or 180 to 265 V switch selectable.

Frequency - 45 to 63 Hz.

Power - 300 W (max).

Operating Temperature - 5 °C to 40 °C.

Cooling - +ve pressure front-back.


Max. Data Rate - 60 Mb/s*1.

Min. Data Rate - 250 kb/s.

Flexible monitoring capability. Up to four transport streams per AT970.

Network Interfaces

Ethernet interfaces allowing remote control and monitoring via SNMP or Windows NT.

Transport Stream Interfaces

SMPTE310M Serial Interface - Accepts 188, 204 or 208 byte MPEG-2 transport streams.

Synchronous Parallel Interface (SPI) - Accepts 188, 204 or 208 byte MPEG-2 transport streams.

Asynchronous Serial Interface (ASI) - ASI Input: Buffer allowed to remove ASI transmission aperiodicity: <1 transport packet.

L-Band - With support for SCPC and MCPC (for details refer to L-Band data sheet).


Real Time Measurements
  • Measurements
    • TS_sync_loss
    • Sync_byte_error
    • PAT_error
    • Continuity_count_error
    • PMT_error
    • PID_error
    • Transport_error
    • CRC_error
    • PCR_error
    • PCR_accuracy_error
    • PTS_error
    • CAT_errror
    • MGT_error
    • STT_error
    • RRT_error
    • TVCT_error
    • CVCT_error
    • ETT_error
    • Unreferenced_PID
    • EIT_error
  • Additional Measurements
    • Bit rate testing - on a transport stream and per PID basis

*1 The maximum bit rate of the monitored stream depends on the information content of the transport stream.

Physical Characteristics





Weight (system unit)



Width (19" mount)



Height (4U)









Ordering Information


ATSC Single Stream Monitor System


Opt. ASPC - ASI/M2S Interface.

Opt. LBPC - L-Band + Card.

Opt. GPPC - GPSI II Card (SMPTE310M, RS422 Serial, DVB SSI, DHEI).


ATSC Two Stream Monitor System


Opt. ASPC - ASI/M2S Interface.

Opt. LBPC - L-Band + Card.

Opt. GPPC - GPSI II Card (SMPTE310M, RS422 Serial, DVB SSI, DHEI).


ATSC Three Stream Monitor System


Opt. ASPC - ASI/M2S Interface.

Opt. LBPC - L-Band + Card.

Opt. GPPC - GPSI II Card (SMPTE310M, RS422 Serial, DVB SSI, DHEI).


ATSC Four Stream Monitor System


Opt. ASPC - ASI/M2S Interface.

Opt. LBPC - L-Band + Card.

Opt. GPPC - GPSI II Card (SMPTE310M, RS422 Serial, DVB SSI, DHEI).