DTV Monitor
QAM400A Datasheet
Multilayer, multichannel, remote monitoring and measurement at RF
and TS layers to DVB, ATSC, SCTE, DCII, and ISDB-T/Tb standards
with content-checking support for both MPEG-2 and H.264/AVC
Comprehensive user-defined template monitoring ensures right content
at the right place at the right time while content-ratings checking
ensures only appropriate content broadcast
Simultaneous connection of multiple remote users and Network
Management Systems (NMS) provides early visibility of problems to
key individuals throughout the organization to support quicker
corrective action
Embedded architecture designed specifically for continuous
24×7 operation maximizes service assurance, thus minimizing cost of
customer complaints and equipment maintenance (disk-free operation)
Remote recording allows capture and analysis of stream events for
expert offline analysis to diagnose difficult and intermittent problems,
requiring no engineer site visits
The QAM400A 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
enables cable operators to deliver superior QoS levels with reduced
operational expenditure. Deployed at key network nodes, the QAM400A
provides an intuitive and simplified presentation of video quality and
diagnostic information. This supports the delivery of superior Quality 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.
Features and benefits
Comprehensive confidence monitoring at the RF modulated layer with
optional QAM Annex A, B, or C interfaces, as well as MER (up to 37 db
typical), BER, and Constellation displays. These critical RF
measurements provide early indication of signal degradation before
any picture impairment is visible to the end customer without additional
costly RF test equipment
Unique dual-level alarming and seven-day trend information proactively
identifies impending problems before they become visible to the viewer
FlexVu™ uniquely empowers operations staff with the simplest
information necessary to prove their service is delivering above their
defined thresholds for superior Quality of Service (QoS)
Highly scalable and field-upgradeable monitoring solution to tailor
capital expenditure with operational growth
Applications
Cable Headend Monitoring
IPTV Ingest and Headend Monitoring
Edge Network Monitoring
ASI to RF
IP to RF (Requires both IPM400A and QAM400A units)
IP to ASI
Deployed at key network nodes, the QAM400A provides an intuitive and
simplified presentation of video quality and diagnostic information to
support delivery of superior QoS levels in an increasingly complex
broadcast environment.
Verify RF and TS integrity on a QAM channel with the ability to tune to any
QAM channel for verification and diagnostics; ideal for monitoring output of
headend SEM or Edge QAM devices at the RF combiner, with support for
both MPEG-2 and H.264 at either Constant Bit Rate (CBR) or Variable Bit
Rate (VBR).
Powerful diagnostic user interface provides intelligent hierarchical
views of network information, media, and data, allowing engineers to
rapidly identify the root cause of underlying service problems
www.tektronix.com 1
QAM400A Datasheet
Technical overview
Flexible and upgradeable
The QAM400A 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. The
confidence monitoring capability uniquely simplifies DTV monitoring with
the FlexVu™ summary displays, which include video thumbnail and
Electronic Program Guide (EPG) views. This empowers operational staff
with the simplest information necessary to ensure their service is delivering
above their defined thresholds for superior QoS.
The QAM400A provides a highly scalable and field-upgradeable monitoring
solution to tailor capital expenditure with operational growth. The extended
confidence monitoring probes can be installed throughout the network and
powerful diagnostic capability (Option DIAG) can be added to the key
monitoring points where Transport Streams are manipulated.
The deep diagnostic option provides engineers with intelligent hierarchical
views of network information, media, and data to support rapidly identifying
the root cause of underlying service problems. This diagnostic monitoring
option provides more in-depth analysis of the MPEG Transport Stream
including recording capability and a comprehensive range of TS testing
including TR 101 290, A/65, A/78, SCTE-142 compliance testing.
The QAM400A provides a single Transport Stream processor platform
packaged in a 1 RU rackmount chassis to provide monitoring of a Transport
Stream at data rates up to 155 Mb/s 1. The QAM interface allows the
QAM400A to receive RF inputs and display key RF monitoring parameters
including MER, BER, and Constellation displays before demodulating the
signal to provide measurements on the health of the Transport Stream.
The channel polling capability for the QAM400A probe combined with the
RF interface allows up to 200 RF channels to be monitored in a repeating
cyclic measurement process. Control and configuration of the polling is
undertaken using flexible XML scripting. This polling ability makes a single
QAM400A probe a broader tool, monitoring large numbers of network
points in a time-sampled measurement mode.
Triggered recording to be captured and rapidly analyzed in greater
depth using powerful offline analysis tools such as the Tektronix MPEG
Test System Stand-alone Software 2
PSI/SI/PSIP/ARIB SI analysis and repetition rate graphing allows
broadcasters to determine that the system information is present and
correct in the Transport Stream
Exception monitoring with simple automated template generation from
reference streams. Template testing checks a number of key
parameters to ensure that the Transport Stream has been constructed
as the broadcaster 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
Bit rate testing determines whether PIDs, programs, services, or userdefined groups of PIDs are within user-definable limits to ensure
correct multiplex operation. Tektronix-proprietary PID variability test
gives indication of PID bit rate variation to assess effects of statistical
multiplexing
In-depth PCR analysis with graphical results views enable timing and
jitter measurements to be made to ensure correct operation of the
network
The remote user interface provides a highly simplified presentation of video
quality and diagnostic information for operations and engineering teams.
Comprehensive service logging enables verification of service level
agreements to ensure that contractual obligations are met
For a fully integrated monitoring solution, network management platforms
are supported with a full set of APIs to support wider distributed network
intelligence. This also includes video walls that can display up to the full
transmitted resolution of the video stream for network operation centers.
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
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 max content is exceeded to
ensure critical measurements continue to be performed.
2
MTS400 Series MPEG Test System offline software tools are available for use with theMTM400A. These are stand-alone software applications intended to run on the customer’s control PC. Separate data
sheet is available.
2 www.tektronix.com
QAM400A Datasheet
Measurement functions
QAM400A Extended Confidence Monitor In Standard
Configuration
MPEG-2, DVB (TR 101 290), ATSC, and ISDB supported
TR 101 290 Priority 1, 2, and 3 measurements 3 in accordance with the
techniques specified in TR 101 290
Supports A/65, A/78, and SCTE-142 compliance testing
Continuity count displayed on a per PID or per TS basis
PSI/SI/PSIP/ARIB SI analysis and repetition rate graphing. Transport
Stream structure view with ability to drill down to examine tables and
service contents plus real-time graphical representation of table
repetition rates
Bit rate measurement in accordance with the methodology specified in
TR 101 290 MGB2
Remote User Interface (RUI)
The Remote User Interface (RUI) is capable of providing simultaneous
measurement results to multiple key resources, supporting improved
organizational efficiency and workflow to minimize network downtime. It is
also capable of being integrated into wider network management platforms
to support wider distributed network intelligence. The confidence monitoring
capability uniquely simplifies DTV monitoring with the FlexVu™ summary
panels. For diagnostic monitoring a context-sensitive analysis paradigm
provides a rich multilayer environment that presents complex information
with an intuitive hierarchical approach. The supporting extensive navigation
options ensure that you can identify the root cause of error alarms with
minimal mouse clicks.
Confidence monitoring
FlexVu™ uniquely presents simplified presentation of video quality and
diagnostic information, to enable delivery of superior QoS levels in an
increasingly complex broadcast environment
Packet size detection
Comprehensive error logging that context filters with navigation
Status of all tests and measurements is available through SNMP MIB
with support for SNMP traps 4
Diagnostic monitoring options (Opt. DIAG)
Triggered recording with user-definable pre-triggered buffering and up
to 160 MB available storage
Template testing (for user-defined service plan testing). User-definable
tests with scheduled template updating
Bit rate testing on a per PID, program, or user-defined groups of PIDs
basis
In-depth timing analysis with graphical results views of:
PCR_OJ (Overall Jitter)
PCR_AC (Accuracy)
FlexVu™ Configurable window
At-a-glance service view with video thumbnails and interactive
Electronic Programming Guide (EPG); empowering operations staff
with the simplest information to monitor service delivery
PCR_FO (Frequency Offset)
PCR_DR (Drift Rate)
PTS Arrival Interval
Service logging of user-selected PIDs to record packet rates at userdefinable intervals
Channel polling allows up to 200 channels to be polled sequentially
from either the IP or the RF interface
EPG view
3
Except T-STD buffer model analysis.
4
Programmers Guide is available on request with full SNMP MIB and HTTP interface documentation.
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QAM400A Datasheet
RF Trending QAM interface (with dual alarming)
Diagnostic monitoring
Powerful user interface provides intelligent hierarchical views of
network information, media, and data allowing engineers to rapidly
identify the root cause of underlying service problems
Video thumbnails
Comprehensive seven-day trending of IP and RF broadcast streams
supports proactive network optimization to minimize downtime
4 www.tektronix.com
Accelerate time-to-insight with context-sensitive navigation and filtered
logging to isolate root cause of test failure
QAM400A Datasheet
Characteristics
Power requirements
Power Consumption (Nominal)
40 VA.
Voltage
100 to 240 V.
Frequency
50/60 Hz.
Monitoring
Maximum Data Rate
155 Mb/s 5
Minimum Data Rate
250 Kb/s.
TR 101 290 tests and measurements
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
5
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 max content is exceeded to
ensure critical measurements continue to be performed.
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QAM400A Datasheet
QAM Interface Characteristics (Options QA, QB2, QC)
QAM Interface Characteristics
(Options QA, QB2, QC)
Characteristic
QAM Annex A
QAM Annex B
QAM Annex C
Input Frequency Range
51 MHz to 858 MHz, 62.5 kHz 88 MHz to 858 MHz, 62.5 kHz steps
steps
Modulation Format
16QAM, 64QAM, 256QAM
compliant with ITU J-83 and
DVB-C ETS 300 429
64QAM, 256QAM compliant
with ITU J-83 6 SCTE07
Compliant
16QAM, 64QAM, 256QAM
Compliant with ITU J-83
Modulation Baud Rate
5 Mbaud/s min
6.952 Mbaud/s max
5.057 Mbaud/s and
5.360 Mbaud/s
5 Mbaud/s min
5.5 Mbaud/s max
Input Signal Level
–59 dBm to –19 dBm(50 dBuV
to 90 dBuV relative to 75 Ω),
with a 16, 64, and 256 QAM
input typical
–64 dBm to –19 dBm(45 dBuV
to 90 dBuV relative to 75 Ω)
with a 64 and 256 QAM input
typical
–59 dBm to –19 dBm(50 dBuV
to 90 dBuV relative to 75 Ω),
with a 16, 64, and 256 QAM
input typical
Ultimate Modulation Error
Ratio
37 dB typical
Receiver Bandwidth
8 MHz nominal
Input Termination Impedance
75 Ω nominal
6 MHz nominal
Input Return Loss
–6 dB min, –10 dB typical, 51 MHz to 858 MHz
Loopthrough Power Gain
1.5 dB to 4 dB typical, 51 MHz N/A
to 858 MHz
N/A
Loopthrough Noise Figure
8 dB typical
N/A
N/A
Loopthrough Output Return
Loss
>10 dB typical
N/A
N/A
QAM Annex A/C Measurements (Option QA or QC)
RF Lock
RF lock is indicated by a LED on the rear panel and a status icon on UI
EVM (Error Vector Magnitude)
Display Range for 64 QAM: ≤1% to ≥5% RMS
Display Range for 256 QAM: ≤1% to ≥2.5% RMS
Resolution: 0.1%
Accuracy: Within 20% of reading for S/N >25 dB typical
6
Ultimate MER (Modulation Error
Ratio)
38 dB typical
Post R5 BER and TEF
(Transport Error Flag)
Post Reed Solomon Indicative BER (uncorrectable error count) and number of Transport Error Flags are displayed on the UI
Constellation
The RF constellation is displayed on the UI
Level 1 and Level 2 interleaving support compliant with all ITU J-83 Annex B, excluding I,J = 128,7 and 128,8.
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QAM400A Datasheet
QAM Annex B Measurements (Option QB2)
RF Lock
RF lock is indicated by a LED on the rear panel and a status icon on UI
Input level (Signal strength)
Range: –64 dBm to –19 dBm
Resolution: 1 dBm
Accuracy: ±3 dBm typical
This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average
EVM (Error Vector Magnitude)
Display Range for 64 QAM: ≤1% to ≥5% RMS
Display Range for 256 QAM: ≤1% to ≥2.5% RMS
Resolution: 0.1%
Accuracy: Within 20% of reading for S/N >25 dB typical
This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average
MER (Modulation Error Ratio)
Display Range for 64 QAM: 22 dB to 37 dB
Display Range for 256 QAM: 28 dB to 37 dB
Resolution: 0.1 dB
Accuracy:
±1 dB for MER <25 dB
±3 dB for MER 25 dB to 34 dB typical
This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average
SNR
Display Range for 64 QAM: 22 dB to 37 dB
Display Range for 256 QAM: 28 dB to 37 dB
Resolution: 1 dB
Accuracy:
±1 dB for MER <25 dB
±3 dB forMER 25 dB to 34 dB typical
This includes the ability to set alarms and produce trend graphs over a seven-day period including min, max, and average
BER
Pre FEC, SER, and Error Sec BER values are displayed
Post R5 BER and TEF (Transport
Error Flag)
Post Reed Solomon BER (uncorrectable error count) and number of Transport Error Flags are displayed on the UI
Constellation
The RF constellation is displayed on the UI
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QAM400A Datasheet
Environment and safety
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 to 3000 m (9800 ft.)
Nonoperating
0 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
Safety
30 G, half sine, 11 ms duration
Meets 73/23/EEC, EN61010-1, UL3111-1 and CAN/CSA 22.2 No. 1010.1-92, IEC61010-1
Physical characteristics
Dimensions
Weight
Required Clearance
7
Weight does not include optional interface cards.
8 www.tektronix.com
Dimension
mm
in.
Height
44
1.73
Width
430
17.13
Depth
600
23.62
Weight 7
kg
lb.
Net
6.0
13.3
Shipping
9.0
19.7
Dimension
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
QAM400A Datasheet
Ordering information
Models
QAM400A
DTV monitor for TS and RF cable network monitoring.
Includes: 1RU chassis fitted with Transport Stream processor card, QAM Annex A, B, or C interface, manual, rack slides, power
cord, and license key certificate.
Instrument options
Options
Option
Description
Opt. DIAG
Deep-dive MPEG diagnostic analysis
Includes:
Triggered recording capability up to 160 MB
Template testing (for user-defined service plan testing)
In-depth PCR analysis with graphical result views
Bit rate testing functionality
Service logging
RF polling functionality
Opt. QA
QAM Annex A interface
Opt. QB2
QAM Annex B interface
Opt. QC
QAM Annex C interface
Complementary products
Item
Description
MTS4SA Opt. TSCL
Stand-alone Deferred Time Software package.
DVB/ATSC/ARIB TS Compliance Analyzer Software (TS file size limited to 192 MB). For full details see separate data sheet
VQNet
Video Service Assurance Management System. For full details please see separate data sheet
VQS1000
Video Quality Software application for single-ended QoE analysis of video and audio content
Service options
Opt. R3
Repair Service 3 Years (including warranty)
Opt. R5
Repair Service 5 Years (including warranty)
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QAM400A Datasheet
Power plug options
Opt. A0
North America power plug (115 V, 60 Hz)
Opt. A1
Universal Euro power plug (220 V, 50 Hz)
Opt. A2
United Kingdom power plug (240 V, 50 Hz)
Opt. A3
Australia power plug (240 V, 50 Hz)
Opt. A4
North America power plug (240 V, 50 Hz)
Opt. A5
Switzerland power plug (220 V, 50 Hz)
Opt. A6
Japan power plug (100 V, 50/60 Hz)
Opt. A10
China power plug (50 Hz)
Opt. A99
No power cord
QAM4UP options
DIAG
Field upgrade kit to add deep-dive MPEG diagnostic analysis to an existing probe
Tektronix is registered to ISO 9001 and ISO 14001 by SRI Quality System Registrar.
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Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supersedes that in all previously published material. Specification and
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24 Nov 2015
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