COBHAM Messenger VETA User manual

Cobham Surveillance
GMS Products
1916 Palomar Oaks Way Ste 100
Carlsbad, CA 92008
100-M0145X2 06/10/2010 T: 760-496-0055
F: 760-496-0057
www.cobham.com/gms
The most important thing we build is trust.
User’s Manual
Messenger VETA Receiver Decoder
(MVRD)

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Table of Contents
1.Acronyms.........................................................................................................................................................................................5
2.Introduction..................................................................................................................................................................................6
2.1About the Manual ...................................................................................................................................................................... 6
2.2Warranty......................................................................................................................................................................................... 6
2.3Safe Operating Procedures .................................................................................................................................................... 7
3.General System Information.............................................................................................................................................8
3.1Product Control & Status Monitoring Approach......................................................................................................... 8
3.2Understanding Configurations............................................................................................................................................. 9
4.MVRD Local Control..............................................................................................................................................................10
4.1Introduction................................................................................................................................................................................10
4.2Main Display ...............................................................................................................................................................................10
4.2.1Main TS screen .................................................................................................................................................................10
4.2.2Main RF screen .................................................................................................................................................................12
4.3Status Menu................................................................................................................................................................................12
4.3.1Signal Strength .................................................................................................................................................................12
4.3.2Decoder Status .................................................................................................................................................................14
4.3.3LAN IP ADDRS Status Display....................................................................................................................................14
4.3.4Genlock Locked ................................................................................................................................................................14
4.3.5Number of Programs......................................................................................................................................................14
4.3.6Selected Program ............................................................................................................................................................14
4.4Setup Menu.................................................................................................................................................................................14
4.5Receiver Setup ...........................................................................................................................................................................15
4.5.1RX Input Source ...............................................................................................................................................................15
4.5.2RX Configuration .............................................................................................................................................................16
4.5.3OSD Control .......................................................................................................................................................................16
4.5.4RF Input Freq.....................................................................................................................................................................16
4.6Genlock Setup............................................................................................................................................................................16
4.6.1Genlock On/Off.................................................................................................................................................................16
4.6.2Genlock Offset ..................................................................................................................................................................16
4.7Program Setup ...........................................................................................................................................................................17
4.7.1Program Mode..................................................................................................................................................................17
4.7.2Selected Program ............................................................................................................................................................17
4.1System Menu .............................................................................................................................................................................19
5.Remote Control........................................................................................................................................................................20
5.1VETA Configurator Functions ............................................................................................................................................20
6.Initial Check Out .....................................................................................................................................................................21
6.1Deploying and Operating the MVRD...............................................................................................................................21
6.2Using of the On Screen Display.........................................................................................................................................23
7.Hardware Overview................................................................................................................................................................24

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7.1Front Panel Description.........................................................................................................................................................24
7.1.1Power Control ...................................................................................................................................................................24
7.1.2Local Control Panel.........................................................................................................................................................24
7.1.3Status Indicators..............................................................................................................................................................24
7.1.4A/V Connectors................................................................................................................................................................25
7.2Rear Panel Description ...........................................................................................................................................................25
7.2.1DC Power.............................................................................................................................................................................25
7.2.2AUD1, AUD2......................................................................................................................................................................25
7.2.3RF1 and RF2.......................................................................................................................................................................25
7.2.4MISC I/O..............................................................................................................................................................................26
7.2.5DVI..........................................................................................................................................................................................26
7.2.6Composite and Component VIDEO Outputs.....................................................................................................26
7.2.7HD-SDI/SDI ........................................................................................................................................................................26
7.2.8ASI In ....................................................................................................................................................................................27
7.2.9ASI Out.................................................................................................................................................................................27
7.2.10SYNC......................................................................................................................................................................................27
7.2.11LAN.........................................................................................................................................................................................27
7.3Video Scaler ................................................................................................................................................................................27
7.4Using breakout cables ............................................................................................................................................................27
7.4.1Power Cable w/AC/DC Power Supply ....................................................................................................................27
7.4.2MVRD CTRL Cable...........................................................................................................................................................28
8.Specification...............................................................................................................................................................................29
List of Figures
Figure 1 – Main Display & Control Displays...................................................................................................................................11
Figure 2 – Status Menu............................................................................................................................................................................13
Figure 3 – Setup Menu ............................................................................................................................................................................15
Figure 4 – Program Menu.......................................................................................................................................................................18
Figure 5 – System Menu.........................................................................................................................................................................19
Figure 6 – Basic MDL Setup...................................................................................................................................................................21
Figure 7 – OSD.............................................................................................................................................................................................23
Figure 8 – MVRD, Front View ...............................................................................................................................................................24
Figure 9 – MVRD, Rear View .................................................................................................................................................................25
Figure 10 – Miscellaneous connector front view .......................................................................................................................26
List of Appendixes
Appendix A – Default Settings C2-Band.........................................................................................................................................33
Appendix B – Configuration Map.......................................................................................................................................................34
Appendix C – Troubleshooting Section ..........................................................................................................................................35
Appendix D – References.......................................................................................................................................................................36

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Revision History
Version Date Main Changes from Previous version Created by
X1 02-24-2010 Initial Release RM
X2 06-11-2010 Genlock and Embedded Audio are added RM

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1. Acronyms
This section lists and describes the various acronyms used in this document.
Name Meaning
16QAM 16-state Quadrature Amplitude Modulation
A/V Audio/Video
AES Advanced Encryption System
ABS Basic Encryption System (8 bit)
COFDM Coded Orthogonal Frequency Division Multiplexing
CVBS Composite Video
BDC Block-Down Converter
FEC Forward Error Correction
GUI Graphical User Interface
I/O Input/ Output
KBaud Kilobaud per second
Kbps Kilobits per second
M2D Messenger Decoder
M2T Messenger 2 Transmitter
Mbps Megabits per second
MDL Messenger Digital Link
MER Modulation Error Rate
MPEG Moving Picture Experts Group
MVRD Messenger VETA Receiver Decoder
NTSC National Television System Committee
PAL Phase Alternation Line
QPSK Quadrature Phase Shift Keying
QAM Quadrature Amplitude Modulation
RF Radio Frequency
RX Receiver
S/N Signal-to-Noise Ratio
THD Total Harmonic Distortion
TX Transmitter
VDC Volts (Direct Current)
VR VETA Receiver
VT VETA Transmitter
VDR VETA Digital Repeater
CSM Compact Surveillance Modem
UDP User Datagram Protocol
VNA VETA Network Adapter

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2. Introduction
2.1 About the Manual
GMS User Manuals focus on providing the end user an easy to understand operational instructions to
quickly setup and deploy the equipment. The GMS Technical Operation Manuals focus on the technical
details and setup of the equipment. The Technical Manuals also provide a more in depth explanation of
the settings and specifications of the equipment that technicians can use to verify the operational
status.
This manual provides information on how to operate the MVRD (Messenger VETA Receiver Decoder) as
well as pertinent technical information related to the overall system.
The manual is divided into three main sections:
Getting started and basic operation
This section describes to users how to deploy and use a MVRD unit.
Advanced operation
This section describes the operation of the system in more detail, concentrating particularly on
advanced use of Local Control Panel and the GUI.
Technical reference
This section provides technical specification and control protocol data and will be of interest to those
integrating the MVRD into larger systems or using unusual configurations.
The MVRD is pre-configured by GMS prior to shipment (based on customer requirements), thus is ready
to work “right out of the box”.
MVRD is supplied with the following cables:
780-C0484 Power Cable w/AC/DC Power Supply
780-C0456 MVRD USB Control Cable
Additional cables and antennas may be delivered by GMS based on customer application. Contact
GMS for further information.
2.2 Warranty
GMS offers a 12 month standard product warranty. During this period, should the customer encounter
a fault with the equipment we recommend the following course of action:
Check the support section of the website for information on that product and any
software/firmware upgrades.
If fault persists call our support line and report the fault. If fault persists and you are informed to
return the product, please obtain an RMA number from the GMS support department or website
and ship the equipment with the RMA number displayed and a description of the fault. Please
email the support section the airway bill/consignment number for tracking purposes.

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Depending on the nature of the fault GMS endeavor to repair the equipment and return it to the
customer within 14 days of the item arriving at our workshops. Obviously it is impossible to cater for all
types of faults and to manage 100% replacement part availability, and delays are sometimes inevitable.
Please contact GMS for details of packages that can be tailored to meet your individual needs, whether
they are service availability, technical training, local geographic support or dedicated spares holdings.
2.3 Safe Operating Procedures
Ensure that the power supply arrangements are adequate to meet the requirements of VETA
product.
Operate within the environmental limits specified for the product.
Only authorized, trained personnel should open the product. There are no functions that
required the User to gain access to the interior of the product.

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3. General System Information
The MVRD (Messenger VETA Receiver Decoder) receives and demodulates DVB-T 2k carriers’ signals
with bandwidths of 6, 7 or 8 MHz; additionally, optional 1.25 or 2.5 MHz RF bandwidths with 400
carriers allow both increased reception range and larger quantity of simultaneous A/V links to operate
in the same frequency band. The wider bandwidths provide greater throughput that allow the system
to transfer the highest quality video.
The MVRD has dual Diversity inputs and internal RF Block-Down Converters (BDCs) with a user selected
(at time of purchase) frequency band. The MVRD’s Maximal Ratio Diversity Combiner provides
optimum reception in difficult fading and multipath environments. Additionally, the Diversity
combining can provide up to 2.5 dB in link performance, increasing the receiver’s sensitivity to -97.5
dBm at 8 MHz bandwidth.
One of the biggest problems encountered in the transition from analog to digital A/V systems has been
the inherent digital coding/decoding delays that in some digital systems are 400ms or more. The VETA
Transmitters & Receivers employ internal MPEG-2 or MPEG-4(4) (User Selectable) Encoders and
Decoders with specially designed ‘low-delay’ coding technology, which provides an end to end latency
down to 44ms without the introduction of any further MPEG encoding artifacts. This ensures that the
picture you see is what is happening now - crucial for applications such as surveillance, and law
enforcement, where personnel are reacting to real-time events.
The MVRD also includes internal low-latency Audio/Video Decoder (MPEG-2 or MPEG-4(*)) and output
circuits that provide video, two audio and data channels. Security of transmission is ensured by the use
of Standard ABS encryption or, for greater security, the optional AES 128 or 256 bit scrambling
algorithms.
Control and status monitoring can be accomplished via the VR Front Panel or via an external IBM PC
and GMS’ M.S. Windows application control software. Critical performance parameters like Signal to
Noise Ratio (SNR), Pre and Post FEC Bit Error Rate (BER) and Packet Errors are provided both on the on
the On-Screen Display and M.S. Windows control program.
The MVRD includes an optimal internal low-latency Audio/Video (SD Only) MPEG-2/4 Part 4 Decoder
and output circuits that provide composite video and two audio channels. Ancillary Data extraction is
available in all Modes. Security of transmission is ensured by the use of Standard ABS encryption or, for
greater security, the optional AES 128 or 256 bit scrambling algorithms.
(*) Option Dependant
3.1 Product Control & Status Monitoring Approach
GMS Transmitters and Receivers provide programmable presets or configurations that can be set up
through special programming software by Administrators. Configurations are selected by the user
though M.S. Windows Application programs. Administrators define the configurations for specific
applications. Each configuration completely defines all of the Unit parameters including center
frequency, output RF power level (for TX only), modulation parameters, Video, Audio, User data and
encryption. Field personnel will select specific configuration via pre-determined guidance from the
Administrators. Matching the Transmitter operation to the Receiver operation is as simple as selecting

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the same configuration for both. For example: If the Transmitter is set to configuration #3, then the
Receiver needs to be set to configuration #3 for them to operate together.
3.2 Understanding Configurations
MVRD equipment features sixteen user selectable and programmable configurations. These allow the
user to store the most commonly used channels for quick selection. The Current Config is defined as
the number of the currently selected configuration 1 to 16. The Current Config can be changed by
loading one of the 16 Config-s in the Main Window of Control Software. The parameters in Current
Config-s can be edited in the MVRD menu using the PC Control application. Any modifications made to
system settings will be saved in the current Config. All changes that are applied saved permanently.

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4. MVRD Local Control
4.1 Introduction
As with all GMS Cobham surveillance products, the MVRD uses “Set-Up Groups”/ “Profiles” (Up to 16) to
allow the receiver to be completely pre-configured by Administrators prior to deployment. These set-
up groups define all of the operating parameters (e.g. frequency, bandwidth, FEC, Decryption On/Off)
available to the users. Users on both the TX and RX side only need to be directed to which set-up group
number to use. Normally, the TX and RX would each use the same set-up group number.
GMS offers several control options, including local control and M.S. Windows Applications for remote
control and status monitoring.
The MVRD’s front panel display and keyboard are used for both local control and status monitoring.
The MVRD has a local control panel that allows the selection of up to 16 set-up groups/configurations.
Status indicators are provided for RF Signal Strength, Demod lock, SNR, the presence of a Transport
Stream, audio, video, data, and Decryption Active. This section describes the various displays and
controls that are used for local control. Refer to Error! Reference source not found..
4.2 Main Display
The flow chart of the MVRD main display is shown on Error! Reference source not found.. The LCD
backlight lights up when the power switch is turned on. It takes an about 5 seconds for unit to boot.
The initialization screen displays the product type. After another 5 seconds the display changes to Main
Status Display. Depending on the mode that MVRD is in (ASI In or RF In) different menus will be
displayed on the Front Panel.
Pressing the CNTRL button will take you through a series of Select or Status menus. Pressing EnterPressing the CNTRL button will take you through a series of Select or Status menus. Pressing Enter
button takes you into the corresponding submenus.
4.2.1 Main TS screen
If the unit is in ASI In mode, the main screen will look as shown belo:.
TS: – Transport Stream Present? Next character shows Ywhen the system is processing a
TS and Nwhen it is not.
PRG: – Program Present? ? Next character shows Ywhen the system detects at least one
program in the TS and Nwhen it is not. Program is a group of services that includes one or
more of audio, video and ancillary data. This is detected in the PAT table of the TS.
ASI IN – Indicates that the input mode is set to ASI In.