Rohde&Schwarz R&S®SMCVB-K161 ATSC / ATSC-MH User Manual
R&S®SMCVB-K161
ATSC / ATSC-MH
User Manual
(;Ý:S2)
1179103502
Version 04
This document describes the following software options:
●
R&S®SMCVB-K161 ATSC / ATSC-MH (1434.3831.xx)
This manual describes firmware version FW 5.00.122.xx and later of the R&S®SMCV100B.
© 2022 Rohde & Schwarz GmbH & Co. KG
Muehldorfstr. 15, 81671 Muenchen, Germany
Phone: +49 89 41 29 - 0
Email: info@rohde-schwarz.com
Internet: www.rohde-schwarz.com
Subject to change – data without tolerance limits is not binding.
R&S® is a registered trademark of Rohde & Schwarz GmbH & Co. KG.
Trade names are trademarks of the owners.
1179.1035.02 | Version 04 | R&S®SMCVB-K161
The following abbreviations are used throughout this manual: R&S®SMCV100B is abbreviated as R&S SMCVB, R&S®WinIQSIM2 is
abbreviated as R&S WinIQSIM2
R&S®SMCVB-K161
Contents
1 Welcome to the ATSC / ATSC-MH option.............................................5
1.1 Accessing the ATSC / ATSC-MH dialog...................................................................... 5
1.2 What's new.....................................................................................................................5
1.3 Documentation overview..............................................................................................5
1.3.1 Getting started manual....................................................................................................6
1.3.2 User manuals and help................................................................................................... 6
1.3.3 Service manual............................................................................................................... 6
1.3.4 Instrument security procedures.......................................................................................6
1.3.5 Printed safety instructions............................................................................................... 7
1.3.6 Data sheets and brochures............................................................................................. 7
1.3.7 Release notes and open source acknowledgment (OSA).............................................. 7
Contents
1.3.8 Application notes, application cards, white papers, etc...................................................7
1.4 Scope............................................................................................................................. 8
1.5 Notes on screenshots...................................................................................................8
2 About the ATSC / ATSC-MH option.......................................................9
2.1 Required options...........................................................................................................9
3 ATSC-M/H configuration and settings................................................10
3.1 General settings.......................................................................................................... 10
3.2 Input signal settings................................................................................................... 11
3.2.1 General settings............................................................................................................ 12
3.2.2 Info................................................................................................................................ 15
3.2.3 Test signal settings........................................................................................................17
3.2.4 IP channel x settings..................................................................................................... 18
3.3 Coding settings........................................................................................................... 22
3.3.1 General settings............................................................................................................ 22
3.3.2 Network settings............................................................................................................23
3.4 Global connector settings..........................................................................................25
3.5 TS player...................................................................................................................... 26
3.5.1 TS Player settings......................................................................................................... 27
3.5.2 Player output settings....................................................................................................30
3.5.3 Seamless loop settings................................................................................................. 34
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3.6 Local IP data network settings.................................................................................. 35
4 Performing ATSC / ATSC-MH signal generation tasks..................... 38
4.1 Configuring the input signal...................................................................................... 38
4.1.1 How to apply an external IP input signal....................................................................... 38
4.1.2 How to apply an external TS input signal......................................................................41
4.1.3 How to generate an internal TS signal.......................................................................... 42
4.2 Monitoring the input signal........................................................................................ 43
4.2.1 How to monitor external IP input data........................................................................... 43
4.2.2 How to monitor an external TS input signal.................................................................. 44
4.2.3 How to monitor an internal TS player signal................................................................. 44
5 Remote-control commands.................................................................45
5.1 General commands.....................................................................................................46
Contents
5.2 Input signal commands.............................................................................................. 48
5.2.1 General commands.......................................................................................................48
5.2.2 Info commands..............................................................................................................50
5.2.3 Test signal commands...................................................................................................53
5.2.4 IP subsystem.................................................................................................................55
5.3 Coding commands......................................................................................................59
5.3.1 General commands.......................................................................................................59
5.3.2 Network commands...................................................................................................... 60
5.4 TSGen subsystem.......................................................................................................63
5.5 BCIP subsystem..........................................................................................................71
Glossary: Abbreviations......................................................................75
Glossary: Specifications..................................................................... 77
List of commands................................................................................ 78
Index......................................................................................................80
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1 Welcome to the ATSC / ATSC-MH option
The R&S SMCVB-K161 is a firmware application that adds functionality to generate
signals in accordance with the ATSC / ATSC-MH digital standard.
The R&S SMCVB-K161 option features:
●
This user manual contains a description of the functionality that the application provides, including remote control operation.
All functions not discussed in this manual are the same as in the base unit and are
described in the R&S SMCV100B user manual. The latest version is available at:
www.rohde-schwarz.com/manual/SMCV100B
Installation
You can find detailed installation instructions in the delivery of the option or in the
R&S SMCV100B service manual.
Welcome to the ATSC / ATSC-MH option
Documentation overview
ATSC / ATSC-MH signal generation
1.1 Accessing the ATSC / ATSC-MH dialog
To open the dialog with ATSC / ATSC-MH settings
► In the block diagram of the R&S SMCV100B, select "Baseband > ATSC / ATSC-
MH".
A dialog box opens that displays the provided general settings.
The signal generation is not started immediately. To start signal generation with the
default settings, select "State > On".
1.2 What's new
This manual describes firmware version FW 5.00.122.xx and later of the
R&S®SMCV100B.
Compared to the previous version there are editorial changes only.
1.3 Documentation overview
This section provides an overview of the R&S SMCV100B user documentation. Unless
specified otherwise, you find the documents on the R&S SMCV100B product page at:
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R&S®SMCVB-K161
www.rohde-schwarz.com/manual/smcv100b
1.3.1 Getting started manual
Introduces the R&S SMCV100B and describes how to set up and start working with the
product. Includes basic operations, typical measurement examples, and general information, e.g. safety instructions, etc. A printed version is delivered with the instrument.
1.3.2 User manuals and help
Separate manuals for the base unit and the software options are provided for download:
●
●
Welcome to the ATSC / ATSC-MH option
Documentation overview
Base unit manual
Contains the description of all instrument modes and functions. It also provides an
introduction to remote control, a complete description of the remote control commands with programming examples, and information on maintenance, instrument
interfaces and error messages. Includes the contents of the getting started manual.
Software option manual
Contains the description of the specific functions of an option. Basic information on
operating the R&S SMCV100B is not included.
The contents of the user manuals are available as help in the R&S SMCV100B. The
help offers quick, context-sensitive access to the complete information for the base unit
and the software options.
All user manuals are also available for download or for immediate display on the Internet.
1.3.3 Service manual
Describes the performance test for checking compliance with rated specifications, firmware update, troubleshooting, adjustments, installing options and maintenance.
The service manual is available for registered users on the global Rohde & Schwarz
information system (GLORIS):
https://gloris.rohde-schwarz.com
1.3.4 Instrument security procedures
Deals with security issues when working with the R&S SMCV100B in secure areas. It
is available for download on the Internet.
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1.3.5 Printed safety instructions
Provides safety information in many languages. The printed document is delivered with
the product.
1.3.6 Data sheets and brochures
The data sheet contains the technical specifications of the R&S SMCV100B. It also
lists the options and their order numbers and optional accessories.
The brochure provides an overview of the instrument and deals with the specific characteristics.
See www.rohde-schwarz.com/brochure-datasheet/smcv100b
1.3.7 Release notes and open source acknowledgment (OSA)
The release notes list new features, improvements and known issues of the current
firmware version, and describe the firmware installation.
Welcome to the ATSC / ATSC-MH option
Documentation overview
The open-source acknowledgment document provides verbatim license texts of the
used open source software.
See www.rohde-schwarz.com/firmware/smcv100b
1.3.8 Application notes, application cards, white papers, etc.
These documents deal with special applications or background information on particular topics.
See www.rohde-schwarz.com/application/smcv100b
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1.4 Scope
Tasks (in manual or remote operation) that are also performed in the base unit in the
same way are not described here.
In particular, it includes:
●
●
●
●
For a description of such tasks, see the R&S SMCV100B user manual.
Welcome to the ATSC / ATSC-MH option
Notes on screenshots
Managing settings and data lists, like saving and loading settings, creating and
accessing data lists, or accessing files in a particular directory.
Information on regular trigger, marker and clock signals and filter settings, if appropriate.
General instrument configuration, such as checking the system configuration, configuring networks and remote operation
Using the common status registers
1.5 Notes on screenshots
When describing the functions of the product, we use sample screenshots. These
screenshots are meant to illustrate as many as possible of the provided functions and
possible interdependencies between parameters. The shown values may not represent
realistic usage scenarios.
The screenshots usually show a fully equipped product, that is: with all options installed. Thus, some functions shown in the screenshots may not be available in your particular product configuration.
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2 About the ATSC / ATSC-MH option
ATSC-M/H was adopted as the ATSC A/153 candidate standard on December 1, 2008
under the logo "ATSC mobile DTV".
The ATSC-M/H standard adds mobile reception capability to the conventional ATSC/
8VSB standard. Like ATSC-A/53, it is based on the VSB modulation method. The
higher immunity to interference is achieved by more efficient error protection mechanisms in the baseband and by an expanded training sequence. In addition, it is now
considerably easier to set up an SFN due to the cyclic resetting of the trellis encoder.
The newly introduced slot structure facilitates the development of energy-saving
receivers.
ATSC-M/H uses IP-based MPEG AVC (H.264) video and HE AAC v2 audio (ISO/IEC
14496-3) for source coding.
Since the expanded error protection was inserted before the multiplexer in the preprocessor, at least one program can be transmitted simultaneously in the conventional
8VSB.
About the ATSC / ATSC-MH option
Required options
The postprocessor must then distinguish between standard and M/H data and handle
these two data types separately.
In the R&S SMCV100B, only the postprocessor is implemented, which means that to
vary M/H-specific parameters, different transport streams are needed.
2.1 Required options
The equipment layout for generating ATSC / ATSC-MH signals includes:
●
Base unit
●
Option Enable Broadcast Standard (R&S SMCVB-K519)
●
Option ATSC / ATSC-MH (R&S SMCVB-K161)
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3 ATSC-M/H configuration and settings
Access:
► Select "Baseband > ATSC-M/H".
The remote commands required to define these settings are described in Chapter 5,
"Remote-control commands", on page 45.
Settings:
● General settings......................................................................................................10
● Input signal settings.................................................................................................11
● Coding settings....................................................................................................... 22
● Global connector settings........................................................................................25
● TS player.................................................................................................................26
● Local IP data network settings................................................................................ 35
ATSC-M/H configuration and settings
General settings
3.1 General settings
Access:
► Select "Baseband > ATSC-M/H".
This tab provides default settings, "Save/Recall" settings and settings to define the
reference point of the vestigial sideband (VSB).
Settings:
State..............................................................................................................................10
Set To Default................................................................................................................11
Save/Recall................................................................................................................... 11
VSB Frequency............................................................................................................. 11
State
Activates the standard and deactivates all the other digital standards and digital modulation modes in the same path.
Remote command:
[:SOURce<hw>]:BB:ATSM:STATe on page 46
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Set To Default
Calls the default settings. The values of the main parameters are listed in the following
table.
Remote command:
[:SOURce<hw>]:BB:ATSM:PRESet on page 46
Save/Recall
Accesses the "Save/Recall" dialog, that is the standard instrument function for saving
and recalling the complete dialog-related settings in a file. The provided navigation
possibilities in the dialog are self-explanatory.
The settings are saved in a file with predefined extension. You can define the filename
and the directory, in that you want to save the file.
See also, chapter "File and Data Management" in the R&S SMCV100B user manual.
ATSC-M/H configuration and settings
Input signal settings
Parameter Value
State Not affected by the "Set to Default"
Remote command:
[:SOURce<hw>]:BB:ATSM:SETTing:CATalog? on page 47
[:SOURce<hw>]:BB:ATSM:SETTing:DELete on page 47
[:SOURce<hw>]:BB:ATSM:SETTing:LOAD on page 47
[:SOURce<hw>]:BB:ATSM:SETTing:STORe on page 47
VSB Frequency
Sets the vestigial sideband (VSB) reference frequency point.
"Center"
"Pilot"
Remote command:
[:SOURce<hw>]:BB:ATSM:FREQuency:VSBFrequency on page 48
Sets the center of the output spectrum to the set RF frequency.
If an external modulator is used by the digital baseband outputs, the
modulator's output frequency is also referenced to the spectral center.
Sets the pilot carrier of the VSB spectrum to the set RF frequency.
The output frequency of an external modulator is referenced to the
pilot carrier, even if the baseband outputs are used.
3.2 Input signal settings
Access:
► Select "Baseband > ATSC-M/H > Input Signal".
The dialog provides access to settings to configure the input signal. Also, it provides physical layer information for external signals and TS signals. For internal
test signals, you can configure payload and structure of test packets.
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Input signal tasks
The settings allow you to perform the following tasks:
●
●
●
How to: Chapter 4.1, "Configuring the input signal", on page 38.
Settings:
● General settings......................................................................................................12
● Info.......................................................................................................................... 15
● Test signal settings..................................................................................................17
● IP channel x settings...............................................................................................18
3.2.1 General settings
ATSC-M/H configuration and settings
Input signal settings
Selecting an MPEG TS source
Displaying information about the selected MPEG TS (e.g. data rate)
Configuring the internal MPEG TS test packets or internal IP test packets
Access:
► Select "Input Signal > General".
The tab provides general settings to configure the input signal.
Settings:
Source...........................................................................................................................12
Input.............................................................................................................................. 13
Input Format..................................................................................................................13
IP TS Channel...............................................................................................................13
Stuffing.......................................................................................................................... 14
Test Signal.....................................................................................................................14
Source
Sets the modulation source for the input signal.
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ATSC-M/H configuration and settings
Input signal settings
"External"
"TS Player"
"Test Signal"
Remote command:
[:SOURce<hw>]:BB:ATSM:SOURce on page 49
Input
Requires "Source > External".
Sets the external input interface.
"TS IN"
"IP"
Remote command:
[:SOURce<hw>]:BB:ATSM:INPut on page 49
Uses a transport stream, that is input at the "TS IN"/"IP Data" interface.
For more information about connecting to the interfaces, see also:
●
"TS IN" interface: Section "Configuring the Global Connectors" in
the R&S SMCV100B user manual.
●
"IP Data" interface: Chapter 3.6, "Local IP data network settings",
on page 35.
Uses an internal transport stream with TS packet data played from a
file. The player requires no option.
Playing encrypted files with extension _c requires a stream library
option R&S SMCVB-KSx.
See also:
●
Chapter 3.5, "TS player", on page 26
●
Supported TS player file types
Uses an internal test signal as specified in Chapter 3.2.3, "Test signal
settings", on page 17.
Input for serial transport stream data. The signal is input at the "User
1" connector.
Input for IP-based transport stream data (TSoverIP). The signal is
input at the "IP Data" connector.
Input Format
Requires "Input > TS IN".
Sets the format of the input signal.
"ASI"
"SMPTE 310"
Remote command:
[:SOURce<hw>]:BB:ATSM:INPut:FORMat on page 49
IP TS Channel
Requires "Input > IP".
Selects the IP-based transport stream (TS) channel. You can select 1 out of 4 IP TS
channels as input at the "IP Data" interface.
To configure a particular channel, see Chapter 3.2.4, "IP channel x settings",
on page 18.
Remote command:
[:SOURce<hw>]:BB:ATSM:INPut:TSCHannel on page 49
ASI format
SMPTE 310 format
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Stuffing
Requires "Source > External/TS Player".
Activates stuffing.
Note: Due to the special slot structure, and because the trellis encoder must be reset
whenever there are exactly defined data packets, for error-free ATSC-M/H transmission, stuffing must never be enabled. However, to allow transmission of lower-rate data
streams, stuffing can be enabled. In the M/H state, however, the warning "M/H structure not found" is displayed cyclically.
"On"
"Off"
Remote command:
[:SOURce<hw>]:BB:ATSM:STUFfing on page 50
ATSC-M/H configuration and settings
Input signal settings
The installed input interface provides the transport stream data rate
required for the current modulation parameters (regardless of the
input data rate of the external transport stream).
The data rate of the transport stream source must match the data
rate required for the current modulation parameters.
The value equals the "Max. Useful Data Rate" on page 15.
Test Signal
Requires "Source > Test Signal".
Defines the test signal data.
Note: The test signal contains no ATSC M/H data. Use test signals only for ATSC A/53
(8VSB) compatible receiver testing.
"Test TS Packet"
Standardized packet data used as modulation data in the transport
stream.
To configure the packet structure, select the side tab "Test Signal >
Test TS Packet". See also "Test TS Packet" on page 17.
"PRBS before Interleaver"
Pure pseudo-random bit sequence (PRBS) data used as modulation
data with no packet structure. PRBS data conforms with ITU-T O.151
specification.
To configure the PRBS type, select the side tab "Test Signal >
PRBS". See also "PRBS" on page 18.
"PRBS before Trellis"
Pure pseudo-random bit sequence (PRBS) data used as modulation
data with no packet structure and interleaving. Modulation data is
directly fed to the trellis encoder.
"PRBS before Mapper"
Pure pseudo-random bit sequence (PRBS) data directly fed to the
mapper.
Three bits at a time in two's complement are assigned to the stages
-7, -5, -3, -1, 1, 3, 5, 7. Subsequent pilot insertion and VSB filtering
remain unaffected.
Remote command:
[:SOURce<hw>]:BB:ATSM:TESTsignal on page 53
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3.2.2 Info
Access:
► Select "Input Signal > Info".
ATSC-M/H configuration and settings
Input signal settings
The tab displays information on the input signal.
Settings:
Packet Length............................................................................................................... 15
Max. Useful Data Rate.................................................................................................. 15
Measured Data Rate..................................................................................................... 16
Useful Data Rate...........................................................................................................16
Packet Length
Requires "Source > External".
Displays the packet length of the external transport stream in bytes.
If the packet length does not match the specified length, the output signal is erroneous.
"Packet Length > Invalid" is displayed.
"188"
"208"
"Invalid"
Remote command:
[:SOURce<hw>]:BB:ATSM:PACKetlength? on page 51
188 byte packets specified for serial input ("Input > TS IN") and parallel input ("Input > IP").
208 byte packets specified for serial input ("Input > TS IN") and parallel input ("Input > IP").
Packet length ≠ 188 bytes or 208 bytes, i.e. the length is not as specified.
Max. Useful Data Rate
Requires "Source > External/TS Player".
Displays the maximum data rate, that is derived from the current modulation parameter
settings.
The value is the optimal value at the TS input interface, that is necessary for the modulator.
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If "Stuffing > On", the value indicates the maximum useful data rate, that is allowed in
the transport stream.
If "Stuffing > Off", the value indicates the transport stream input data rate, that is
required for the transport stream.
Remote command:
[:SOURce<hw>]:BB:ATSM:USEFul[:RATE]:MAX? on page 52
Measured Data Rate
Requires "Source > External".
Displays the measured value of the data rate r
●
●
The value r
r
If "Stuffing > Off", ensure that the measured data rate r
data rate r
r
Remote command:
[:SOURce<hw>]:BB:ATSM[:INPut]:DATarate? on page 52
ATSC-M/H configuration and settings
Input signal settings
of one of the following:
meas
External transport stream including null packets input at "User 1" connector
External transport stream including null packets input at "IP Data/LAN" connector
(TSoverIP)
meas
meas
= r
= r
meas
+ r
useful
max. useful
max. useful
equals the sum of useful data rate r
0
:
and the rate of null packets r0:
useful
equals the maximum useful
meas
Useful Data Rate
Requires "Source > External/TS Player".
Displays the data rate of useful data r
of the external transport stream. The data
useful
rate is measured at the input of the installed input interface.
Remote command:
[:SOURce<hw>]:BB:ATSM:USEFul[:RATE]? on page 51
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3.2.3 Test signal settings
Access:
► Select "Input Signal > Test Signal".
ATSC-M/H configuration and settings
Input signal settings
The tab provides settings to configure the input test signal.
Settings:
Test TS Packet..............................................................................................................17
PID Test Packet.............................................................................................................17
PID (Hex)...................................................................................................................... 18
Payload Test/Stuff......................................................................................................... 18
PRBS............................................................................................................................ 18
Test TS Packet
Specifies the structure of the test transport stream packet that is fed to the modulator.
"Head/184 Payload"
A sync byte (0x47) followed by three header bytes and 184 payload
bytes.
"Sync/187 Payload"
A sync byte (0x47) followed by 187 payload bytes.
Remote command:
[:SOURce<hw>]:BB:ATSM:TSPacket on page 54
PID Test Packet
If a header is present in the test packet ("Test TS Packet > Head/184 Payload"), you
can specify a fixed or variable packet identifier (PID).
"Null"
"Variable"
The header of the test transport stream packets has a fixed setting of
null packet header 1FFF (hex).
Uses the header value defined with PID (Hex).
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Remote command:
[:SOURce<hw>]:BB:ATSM:PIDTestpack on page 54
PID (Hex)
Sets the PID.
If "PID Test Packet > Null", "PID (Hex) = 1FFF" is fixed.
If "PID Test Packet > Variable", you can edit the value.
Remote command:
[:SOURce<hw>]:BB:ATSM:PID on page 54
Payload Test/Stuff.
Defines the payload area content of the TS packet.
For "Source > Test Signal", the packet is a test packet.
For "Stuffing > On", the packet is a null packet. Null packets are inserted into the external transport stream to adapt the stream data rate.
See also "Measured Data Rate" on page 16.
Remote command:
[:SOURce<hw>]:BB:ATSM:PAYLoad on page 55
ATSC-M/H configuration and settings
Input signal settings
PRBS
Sets the length of the PRBS sequence.
You can select a PRBS 15 or a PRBS 23 sequence as specified by ITU-T O.151.
Remote command:
[:SOURce<hw>]:BB:ATSM:PRBS on page 55
3.2.4 IP channel x settings
Access:
1. Select "Input Signal > General".
2. Select "Source > External"
3. Select "Input > IP"
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4. Select "Input Signal > IP Channel x"
You can configure settings for 4 IP channels x = 1 to 4 individually, see also "Input
Signal > General > IP TS Channel".
ATSC-M/H configuration and settings
Input signal settings
The tab provides settings to configure IP channel x.
IP channel settings affect input IP data of the local IP data network. The settings are
independent from the used broadcast standard configuration.
Saving/recalling a certain IP channel or local IP data network configuration is not possible via the broadcast standard-specific functionality.
Use the global save/recall functionality instead, see section "Saving and Recalling
Instrument Settings" in the R&S SMCV100B user manual.
The table below shows the availability of the tab in the broadcast standard configuration.
Table 3-1: IP channel configuration support in broadcast standards
Baseband standard "IP Channel x" Baseband standard "IP Channel x"
"ATSC/ATSC-M/H" Yes "DVB-S" Yes
"ATSC 3.0" No "DVB-S2" Yes
"DTMB" Yes "DVB-C" Yes
"DVB-T" Yes "J.83/B" Yes
"DVB-T2" Yes "DRM" No
"ISDB-T" Yes "Audio AM" No
"T-DMB/DAB" Yes "Audio FM" No
See also:
●
Chapter 4.1.1, "How to apply an external IP input signal", on page 38
●
Chapter 3.6, "Local IP data network settings", on page 35
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Requirements
At your IP source, set the "transport stream packets per internet protocol packet" (TP
per IP) parameter as follows:
●
●
We recommend that you use a separate LAN infrastructure to stream the transport
streams via IP to the IP connector of the baseband board. Also, avoid TS packet losses during IP transmission.
Settings:
Input IP..........................................................................................................................20
Alias.............................................................................................................................. 20
Type.............................................................................................................................. 20
Multicast Address..........................................................................................................20
Port................................................................................................................................21
IGMPv3 Source Address...............................................................................................21
Ping Source Address.................................................................................................... 21
Ping Result....................................................................................................................21
Local IP Data Network.................................................................................................. 21
ATSC-M/H configuration and settings
Input signal settings
If TP packet length = 188 bytes: Set TP per IP to 7 or 6.
If TP packet length = 204/208 bytes: Set TP per IP to 6.
Input IP
Activates/deactivates the IP input.
Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>[:STATe] on page 56
Alias
Sets a unique name for the IP connection.
The definition of a name is optional but facilitates identification in the measurement
views. The name input fits maximum 16 characters in ASCII format.
Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>:ALIas on page 57
Type
Sets the input signal type.
"Unicast"
"Multicast"
Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>:TYPE on page 57
Analyzes all unicast IP packets that arrive at the specified "Port".
When an IP address is in the multicast address range, an attempt is
made to join a multicast group using IGMP.
Set "Multicast Address" and "Port".
Multicast Address
Editing requires "Type > Multicast".
Sets the destination IP address (IPv4) of the IP connection.
You can set addresses from "224.0.0.0" to "239.255.255.255".
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Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>:MULticast:ADDRess on page 58
Port
Sets the destination UDP port.
Due to UDP/RTP autosensing, we recommend that you set a port offset of at least 6
between neighboring IP TS channels.
Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>:PORT on page 57
IGMPv3 Source Address
Requires "Type > Multicast".
Sets the IGMPv3 source address.
If you need to filter the data sent to the multicast address, specify the source address.
A source address different from "0.0.0.0" accepts only data originating from the specified IP address.
Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>:IGMP[:SOURce]:ADDRess on page 58
ATSC-M/H configuration and settings
Input signal settings
Ping Source Address
Clicking "Ping Source Address" triggers pinging of the IGMPv3 source address.
If you set a different value from "IGMPv3 Source Address = 0.0.0.0" and click the button, the software checks if the address is reachable.
Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>:IGMP[:SOURce]:PING on page 58
Ping Result
Displays the result after pinging the source address.
If "Ping Result > Ping: Successful", the source address is available in the network.
If "Ping Result > Ping: Transmit Failed. xxx", the source address is not available in the
network. "xxx" can be, e.g. "General Failure". Try another "IGMPv3 Source Address".
Remote command:
[:SOURce<hw>]:BB:INPut:IP<ch>:IGMP[:SOURce]:RESult? on page 58
Local IP Data Network
Accesses local IP data network settings, see Chapter 3.6, "Local IP data network set-
tings", on page 35.
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3.3 Coding settings
Access:
► Select "Baseband > ATSC-M/H > Coding".
Settings:
● General settings......................................................................................................22
● Network settings......................................................................................................23
3.3.1 General settings
Access:
ATSC-M/H configuration and settings
Coding settings
The dialog provides settings to configure coding.
► Select "Coding > General".
The tab provides access to "General" settings to configure the "Coding".
Settings:
Symbol Rate..................................................................................................................22
Constellation................................................................................................................. 23
Roll Off.......................................................................................................................... 23
M/H State...................................................................................................................... 23
Symbol Rate
Sets the symbol rate.
The specification ATSC A/153 stipulates a symbol rate of 10.762238 MSym/s ± 5 %.
In the transmission spectrum, the symbol rate represents half of the 3 dB bandwidth.
Remote command:
[:SOURce<hw>]:BB:ATSM:SYMBols[:RATE] on page 59
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Constellation
Displays the constellation.
The value "8VSB" conforms with specification ATSC A/153.
Remote command:
[:SOURce<hw>]:BB:ATSM:CONStel? on page 59
Roll Off
Displays the roll-off factor alpha (α).
The output signals are filtered with an FIR filter. In addition, they are pulse-shaped,
yielding a root raised cosine characteristic. A roll-off factor of 0.115 conforms with
specification ATSC A/153.
Remote command:
[:SOURce<hw>]:BB:ATSM:ROLLoff? on page 60
M/H State
Enables/disables all ATSC-M/H elements of the FEC together.
"On"
"Off"
Remote command:
[:SOURce<hw>]:BB:ATSM:MHSTate on page 60
ATSC-M/H configuration and settings
Coding settings
Outputs a signal in accordance with specification ATSC A/153 and
the network settings.
See Chapter 3.3.2, "Network settings", on page 23.
Outputs a signal (8VSB state) in accordance with specification ATSC
A/53.
3.3.2 Network settings
Access:
► Select "Coding > Network".
The tab provides network settings to configure the "Coding".
The network settings comply with specification ATSC A/153 and require "Coding >
General > M/H State > On".
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Settings:
MHE PID (Hex)............................................................................................................. 24
RF Watermark...............................................................................................................24
TX Address (Hex)..........................................................................................................24
Network ID (Hex)...........................................................................................................24
Bury Ratio..................................................................................................................... 25
MTXID Transmission.....................................................................................................25
Transmitter ID (Hex)......................................................................................................25
Market ID (Hex).............................................................................................................25
MHE PID (Hex)
Requires "Coding > General > M/H State > On".
Sets the MHE PID of MPEG-2 packets that contain ATSC M/H data. The PID is a fourdigit value in hexadecimal format.
Since the packets must be treated separately in the postprocessor, the correct specification is essential. The parameter is important for the M/H transmission.
Note: If you set the wrong PID or if the fed-in data stream does not contain an M/H
element, a warning is displayed. An ATSC-M/H receiver cannot lock in on the emitted
signal, but the 8VSB standard can still be received.
Remote command:
[:SOURce<hw>]:BB:ATSM:MHEPid on page 61
ATSC-M/H configuration and settings
Coding settings
RF Watermark
Enables/disables the RF watermark.
The standard ATSC A/110 specifies, that you can overlay the RF signal with a water-
mark. For this purpose, the modulator calculates a specific Kasami sequence from the
TX address and the network ID.
The Kasami sequence modulates BPSK and is added to the payload signal as buried
spread spectrum. Thus, a unique watermark is provided for each transmitter.
Remote command:
[:SOURce<hw>]:BB:ATSM:WATermark on page 61
TX Address (Hex)
Requires "RF Watermark > On".
Sets the TX address that underlays the RF signal as a watermark.
Remote command:
[:SOURce<hw>]:BB:ATSM:TX:ADDRess on page 62
Network ID (Hex)
Requires "RF Watermark > On".
Sets the network ID for the watermark. The network ID is a three-digit value in hexadecimal format.
Remote command:
[:SOURce<hw>]:BB:ATSM:NETWork:ID on page 62
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Bury Ratio
Requires "RF Watermark > On".
Sets the power with that the watermark is added to the payload signal.
The value is expressed in decibel relative to the power of the modulated signal.
"21 dB" to "39 dB"
Remote command:
[:SOURce<hw>]:BB:ATSM:BURY:RATio on page 62
MTXID Transmission
Enables/disables MTXID transmission.
The transmission of the MTXID in the frame sync signal is a technique for detecting the
respective transmitter that is complementary to the RF watermark technique.
The MTXID comprises the transmitter ID and the market ID. The main advantage of
this method is that the error vector of the useful signal is not enlarged. Furthermore,
the information transmitted in this case is to be used for highly accurate position-finding.
Remote command:
[:SOURce<hw>]:BB:ATSM:TRANsmission on page 62
ATSC-M/H configuration and settings
Global connector settings
Sets the bury ratio in 3 dB steps.
Transmitter ID (Hex)
Requires "MTXID Transmission > On".
Sets the transmitter ID for the MTXID transmission.
Remote command:
[:SOURce<hw>]:BB:ATSM:MTXid:TID on page 63
Market ID (Hex)
Requires "MTXID Transmission > On".
Sets the market ID for the transmission.
Remote command:
[:SOURce<hw>]:BB:ATSM:MTXid:MID on page 63
3.4 Global connector settings
The "Input Signal" dialog, the "Trigger/Marker/Clock" dialog and "Trigger In", "Marker"
and "Clock" tabs in "Baseband > ARB/Custom Digital Mod" configuration dialogs provide quick access to the related connector settings. Click the "Global Connectors" button to access the settings.
See also chapter "Global connector settings" in the user manual.
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