Microwave Radio Communications MRX4000 PLUS User manual

Operator’s Guide
Manual Part No. 400537-1
Rev. B May 2008
High Performance Analog + Digital
Integrated Receiver Decoder (IRD)
MRX4000 PLUS

Notices iMRX4000 PLUS Operator’s Guide
Notices
About This Manual
Part number 400537-1
Revision B May 2008
The information in the manual applies to the Microwave Radio
Communications (MRC) MRX4000 PLUS High Performance
Analog + Digital Integrated Receiver Decoder (IRD).
Copyright
The information in this manual may only be reproduced by the
purchaser strictly for its own internal use to the extent required
for its use of the product, and shall only be made available to
purchaser’s employees who need access to this material. No
part of this material, nor any copies hereof, shall in any manner
be disclosed, disseminated, or made available by purchaser or
its employees to any other person, firm, or entity without the
express prior written consent of Microwave Radio
Communications nor shall the same in any manner be modified
or published for resale without the express prior written
authorization of Microwave Radio Communications.
© 2008 Microwave Radio Communications
Microwave Radio Communications
101 Billerica Avenue - Bldg. 6
North Billerica, MA 01862-1256 USA
TEL: [phone]
978.671.5700
FAX: [phone]
Printed in U.S.A.
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Proprietary Material
The information and design contained within this manual was
originated by and is the property of Microwave Radio
Communications. Microwave Radio Communications reserves
all patent proprietary design, manufacturing, reproduction use,
and sales rights thereto, and to any articles disclosed therein,
except to the extent rights are expressly granted to others. The
foregoing does not apply to vendor proprietary parts.
Microwave Radio Communications has made every effort to
ensure the accuracy of the material contained in this manual at
the time of printing. As specifications, equipment, and this
manual are subject to change without notice, Microwave Radio
Communications assumes no responsibility or liability
whatsoever for any errors or inaccuracies that may appear in this
manual or for any decisions based on its use. This manual is
supplied for information purposes only and should not be
construed as a commitment by Microwave Radio
Communications.
Quality Certification
Microwave Radio Communications is certified to ISO 9001:2000.
Authorized EU representative: Vislink PLC.

Notices iiMRX4000 PLUS Operator’s Guide
Conventions
Pay special attention to information marked in one of the
following ways:
WARNING Follow WARNINGS closely to prevent
personal injury or death.
CAUTION Follow CAUTIONS to prevent damage to
the equipment.
Note Notes provide additional information to assist you
in using and maintaining the equipment.
Waste Electrical and Electronic
Equipment
The crossed out dustbin symbol on the product
indicates that the product must not be disposed of
with other waste at the end of its lifecycle. Instead, it
is the user’s responsibility to dispose of the waste
equipment by handing it over to a designated collection point for
the recycling of Waste Electrical and Electronic Equipment
(WEEE). For more information about where you can drop off
your waste equipment for recycling, please contact your local
government office.
Except for this notification and the proper marking of products
with the appropriate symbol, Microwave Radio Communications
disclaims responsibility for the disposal of its products per the
WEEE directive.
Symbols Used
The following symbols are used on the equipment:
Symbol Meaning
WARNING: General Warning. Risk of Danger.
WARNING: Risk of Electric Shock.
WARNING: Electrostatic Discharge. Possible
Damage to Equipment.
Fuse - Identifies fuses or their location.
Frame or Chassis Ground - Identifies the frame or
chassis terminal.
Earth Ground - Identifies the earth ground terminal.
Protective Earth Ground - Identifies any terminal
which is intended for connection to an external
conductor for protection against electric shock in
case of a fault, or the terminal on a protective earth
electrode.
OR

Notices iiiMRX4000 PLUS Operator’s Guide
On-Line Viewing
Text displayed as blue contains a hypertext link. Click on the
hypertext to jump to that destination. Click on the
blue destination to return.
Warranty Information
Products Manufactured by MRC
a. Products manufactured by MRC are warranted against
defects in material and workmanship for a period of two (2) years
from date of delivery as evidenced by MRC's packing slip or
other transportation receipt (unless otherwise noted).
b. MRC's sole responsibility under this warranty will be to either
repair or replace, at its option, any component which fails during
the applicable warranty period because of a defect in material or
workmanship, provided Buyer has promptly reported same to
MRC in writing. All replaced products and parts will become
MRC's property.
c. MRC will honor the warranty at the repair facility designated
by MRC. It is Buyer's responsibility to return, at its expense, the
allegedly defective product to MRC. Buyer must obtain a Return
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Material Authorization (RMA) number and shipping instructions
from MRC prior to returning any product under warranty.
Transportation charges for the return of the product to Buyer will
be paid by MRC within the United States. For all other locations,
the warranty excludes all costs of shipping, customs clearance,
and other related charges. If MRC determines that the product is
not defective within the terms of this warranty, Buyer will pay
MRC all costs of handling, transportation, and repairs at the then
prevailing repair rates.
d. All the above warranties are contingent upon proper use of
the product. These warranties will not apply (1) if adjustment,
repair, or product or parts replacement is required because of
accident, unusual physical, electrical or electromagnetic stress,
neglect, misuse, failure of electric power, environmental controls,
transportation, failure to maintain properly, or otherwise in
accordance with MRC specifications, or abuses other than
ordinary use; (2) if the product has been modified by Buyer or
has been repaired or altered outside MRC's repair facility, unless
MRC specifically authorizes such repairs or alterations in each
instance; or (3) where MRC serial numbers, warranty data, or
quality assurance decals have been removed or altered.
e. Equipment shipped FOB from Microwave Radio
Communications shall become the property of the buyer upon
delivery and receipt from the carrier. Any damage in shipment
should be handled by the buyer directly with the carrier.
Immediately request the carrier’s inspection upon evidence of
damage during shipment. Do not return any Microwave Radio
Communications product to the factory until a Return Material
Authorization (RMA) number and shipping instructions have
been provided.
f. No person, including any dealer, agent, or representative of
MRC, is authorized to assume for MRC any other liability on its
behalf except as set forth herein. If any payment is due MRC for

Notices ivMRX4000 PLUS Operator’s Guide
services performed hereunder, it will be subject to the same
payment terms as the original purchase.
Products Manufactured By Others
For products not manufactured by MRC, the original
manufacturer's or licensor's warranty will be assigned to Buyer to
the extent permitted by the manufacturer or licensor and is in lieu
of any other warranty, expressed or implied. For warranty
information on a specific product, a written request should be
made to MRC.
All Products
THE FOREGOING WARRANTIES AND REMEDIES ARE
EXCLUSIVE AND ARE IN LIEU OF ALL OTHER EXPRESS OR
IMPLIED WARRANTIES, OBLIGATIONS, AND LIABILITIES ON
THE PART OF MRC. EXCEPT FOR THE EXPRESS
WARRANTIES STATED HEREIN, MRC DISCLAIMS ALL
WARRANTIES ON PRODUCTS FURNISHED HEREUNDER,
INCLUDING, WITHOUT LIMITATION, ALL IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
PARTICULAR PURPOSE. MRC WILL HAVE NO
RESPONSIBILITY FOR ANY PARTICULAR APPLICATION
MADE OF ANY EQUIPMENT.
Any description of equipment, whether in writing or made orally
by MRC or its agents, specification sheets, models, bulletins,
drawings, or similar materials used in connection with Buyer's
order are for the sole purpose of identifying the equipment and
will not be construed as an express warranty. Any suggestions
by MRC or its agents regarding use, application, or suitability of
the equipment will not be construed as an express warranty. No
warranties may be implied from any course of dealing or usage
of trade. Buyer agrees that the exclusion of all warranties, other
than those expressly provided herein, is reasonable.

Contents 1MRX4000 PLUS Operator’s Guide
Contents
Notices - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
About This Manual - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
Copyright - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
Proprietary Material - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
Quality Certification - - - - - - - - - - - - - - - - - - - - - - - - - - - - i
Conventions - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
Waste Electrical and Electronic Equipment - - - - - - - - - - - ii
Symbols Used- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - ii
On-Line Viewing - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - iii
Warranty Information - - - - - - - - - - - - - - - - - - - - - - - - - - - iii
Products Manufactured by MRC - - - - - - - - - - - - - - - - iii
Products Manufactured By Others - - - - - - - - - - - - - - iv
All Products - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - iv
Contents - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1
Introduction - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
Chapter Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
How to Use This Manual - - - - - - - - - - - - - - - - - - - - - - 1-1
What This Manual Covers - - - - - - - - - - - - - - - - - - - - - 1-1
How It’s Organized - - - - - - - - - - - - - - - - - - - - - - - - - - 1-1
For Whom It’s Written - - - - - - - - - - - - - - - - - - - - - - - - 1-2
Related Documents - - - - - - - - - - - - - - - - - - - - - - - - - - 1-2
Ordering Documentation - - - - - - - - - - - - - - - - - - - - - - 1-2
Calling for Service - - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Supported Repairs - - - - - - - - - - - - - - - - - - - - - - - - - - 1-3
Tell Us What You Think! - - - - - - - - - - - - - - - - - - - - - - 1-4
Product Description- - - - - - - - - - - - - - - - - - - - - 2-1
Chapter Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
System Descriptions - - - - - - - - - - - - - - - - - - - - - - - - - 2-1
MRX4000 PLUS Description - - - - - - - - - - - - - - - - - 2-1
MRX4000 PLUS Configuration Options - - - - - - - - - 2-2
Configuration Descriptions - - - - - - - - - - - - - - - - - - 2-2
Power Options - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
Mounting and Deployment Options - - - - - - - - - - - - - 2-5
System Operation - - - - - - - - - - - - - - - - - - - - - - - - - 2-5
MRX4000 PLUS Configurations- - - - - - - - - - - - - - - - - - 2-6
MPEG/COFDM Digital Configuration- - - - - - - - - - - - 2-6
FMR NTSC/PAL Analog Configuration - - - - - - - - - - 2-6
MPEG/COFDM/FMR NTSC/PAL Digital + Analog
Configuration - - - - - - - - - - - - - - - - - - - - - - - - - - - - 2-6
For More Information - - - - - - - - - - - - - - - - - - - - - - - - - 2-6
Routine Operation - - - - - - - - - - - - - - - - - - - - - - 3-1
Chapter Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-1
Overview of Controls, Indicators and Connectors - - - - - 3-1
Controls and Indicators - - - - - - - - - - - - - - - - - - - - - 3-1
MRX4000 PLUS Digital and Digital + Analog
Configuration Connectors- - - - - - - - - - - - - - - - - - - - 3-3
MRX4000 PLUS Analog Configuration Connectors- - 3-5
Preparing for Operation - - - - - - - - - - - - - - - - - - - - - - - 3-7
Fixed or Mobile Installation- - - - - - - - - - - - - - - - - - - 3-7
Powering the MRX4000 PLUS - - - - - - - - - - - - - - - - 3-7
Using the MRX4000 PLUS Screens - - - - - - - - - - - - - - - 3-8
Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-8
Menu Configurations - - - - - - - - - - - - - - - - - - - - - - 3-11
Main Screen - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-11
Cursors - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-11
Accessing Menus - - - - - - - - - - - - - - - - - - - - - - - - 3-13
Monitoring Operations - - - - - - - - - - - - - - - - - - - - - - - 3-13
Monitor/Change MPEG Settings - - - - - - - - - - - - - - - - 3-13
Monitor/Change Color Bars - - - - - - - - - - - - - - - - - 3-16
Monitor/Change Audio Output Mode Setting - - - - - 3-17
Monitor/Change NTSC Pedestal - - - - - - - - - - - - - - 3-18
Monitor/Change BISS Settings - - - - - - - - - - - - - - - 3-20
Monitor Audio A - - - - - - - - - - - - - - - - - - - - - - - - - 3-21
Monitor Audio B - - - - - - - - - - - - - - - - - - - - - - - - - 3-23
Monitor Video Status - - - - - - - - - - - - - - - - - - - - - - 3-24

Contents Contents-2MRX4000 PLUS Operator’s Guide
Monitor Chroma Status - - - - - - - - - - - - - - - - - - - - 3-25
Monitor Service Name - - - - - - - - - - - - - - - - - - - - 3-26
Monitor/Change COFDM Settings - - - - - - - - - - - - - - 3-28
Monitor/Change Bandwidth - - - - - - - - - - - - - - - - - 3-30
Monitor Modulator Type - - - - - - - - - - - - - - - - - - 3-31
Monitor Forward Error Correction- - - - - - - - - - - - - 3-32
Monitor Guard Interval - - - - - - - - - - - - - - - - - - - - 3-34
Monitor COFDM Metrics - - - - - - - - - - - - - - - - - - - 3-35
Monitor/Change FMR Settings - - - - - - - - - - - - - - - - - 3-37
Monitor/Change Video Filter - - - - - - - - - - - - - - - - 3-39
Monitor/Change Video Deviation - - - - - - - - - - - - - 3-40
Monitor/Change Channel 1, 2, 3, or 4 Sub-Carrier
Frequencies - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-42
Monitor/Enable/Disable Channel 1, 2, 3, or 4 - - - - 3-43
Monitor/Enable/Disable Channel 1, 2, 3, or 4
Filtering - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-45
Monitor/Enable/Disable Channel 1, 2, 3, or 4 De-
Emphasis - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-46
Monitor/Change MRX4000 PLUS RF/IF Section
Settings - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 3-48
Monitor Channel Frequency - - - - - - - - - - - - - - - - 3-50
Monitor Received Carrier Level - - - - - - - - - - - - - - 3-51
Monitor Link Quality - - - - - - - - - - - - - - - - - - - - - - 3-52
Select Frequency Band - - - - - - - - - - - - - - - - - - - 3-53
Monitor Channel Bandwidth - - - - - - - - - - - - - - - - 3-55
Select Channel and Offset - - - - - - - - - - - - - - - - - 3-56
Change Filter Setting - - - - - - - - - - - - - - - - - - - - - 3-58
Change Squelch Level - - - - - - - - - - - - - - - - - - - - 3-59
Change Analog/Digital Operation Mode - - - - - - - - 3-61
Change IF/RF Operation Mode - - - - - - - - - - - - - 3-63
Monitor/Change System Menu Options - - - - - - - - - - - 3-65
Monitor/Change Active Preset - - - - - - - - - - - - - - - 3-67
Monitor Active Errors - - - - - - - - - - - - - - - - - - - - - 3-67
Review Error Log - - - - - - - - - - - - - - - - - - - - - - - - 3-68
Review System Information - - - - - - - - - - - - - - - - - 3-69
Perform System Reset- - - - - - - - - - - - - - - - - - - - - 3-70
Front Panel vs. Configurator Software - - - - - - - - - - - - 3-71
Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - 4-1
Chapter Overview - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
Status LEDs - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-1
Error Codes - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 4-2
Glossary - - - - - - - - - - - - - - - - - - - - - - - - - - - - - A-1
Channels & Frequencies - - - - - - - - - - - - - - - - - B-1
Appendix Overview - - - - - - - - - - - - - - - - - - - - - - - - - - B-1
Initial Factory Presets - - - - - - - - - - - - - - - - - - - - - - - - - B-1
6.4 to 7.1 GHz Channel Plan - - - - - - - - - - - - - - - - - B-1
12.7 to 13.25 GHz Channel Plan- - - - - - - - - - - - - - - B-2
US 2 GHz Reallocation - 12 MHz Channel Plan - - - - - - B-2
MRX4000 PLUS Specifications - - - - - - - - - - - - C-1
Index - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - 1

1
Introduction 1-1MRX4000 PLUS Operator’s Guide
Introduction
1.1 Chapter Overview
This chapter will introduce you to the Operator’s Guide: what it
covers, how it’s organized, and for whom it’s written.
1.2 How to Use This Manual
A CD ROM, delivered with each MRX4000 PLUS High
Performance Analog + Digital Integrated Receiver Decoder
(IRD) (MRX4000 PLUS), contains PDF files for the Operator’s
Guide, Technical Reference Manual, and the Quick Reference
Card.
The Operator’s Guide, the Technical Reference Manual, and the
Quick Reference Cards are also available for download through
the MRC E-Synergy Customer Portal. For more information or to
obtain a User Name and Password, please go to:
http://www.mrcglobalsolutions.com/support/e_synergy_portal
Hardcopies of the Operator’s Guide and Technical Reference
Manual are provided only if they were requested when your
equipment was ordered.
Viewing of this manual on-line requires Adobe Acrobat software
or Adobe Reader software, Version 5.0 and later. Click on the
following icon to download your FREE copy of the latest Adobe
Reader software.
When viewing this manual on-line, text displayed as blue
contains a hypertext link. Click on the blue hypertext link to
jump to that destination. If the destination link is also blue, click
on the blue destination link to return.
1.3 What This Manual Covers
This manual describes how to operate the MRX4000 PLUS.
For information on Installation, Repair, Replacement Parts, and
Theory of Operation, refer to the MRX4000 PLUS Technical
Reference Manual
This manual also covers various configurations of the MRX4000
PLUS. Your MRX4000 PLUS will consist of one of the following
configurations:
• MPEG/COFDM/FMR NTSC - Analog + Digital with RF/IF
Section
• MPEG/COFDM/FMR PAL - Analog + Digital with RF/IF
Section
• FMR NTSC - Analog Only with RF/IF Section
• FMR PAL - Analog Only with RF/IF Section
• MPEG/COFDM - Digital Only with RF/IF Section
Your MRX4000 PLUS will be rack-mounted in a standard 19-inch
(43.9 cm) rack for fixed site operations.
1.4 How It’s Organized
The manuals for the MRX4000 PLUS are organized as follows:

Introduction 1-2MRX4000 PLUS Operator’s Guide
Chapter Operator’s
Guide
Technical
Reference
Manual
Introduction ✔ ✔
Product Description ✔ ✔
Routine Operation ✔ ✔
Troubleshooting ✔ ✔
Advanced Operation ✔
Installation ✔
Repair ✔
Replacement Parts ✔
Theory of Operation ✔
Glossary ✔ ✔
Channels and
Frequencies
✔ ✔
Configuration Utility ✔
MRX4000 PLUS
Specifications
✔ ✔
Note The Technical Reference Manual contains
everything in the Operator’s Guide, plus additional
technical content.
1.5 For Whom It’s Written
This manual is intended for use by qualified installers and
service personnel. Users of this manual should already be
familiar with basic concepts of radio, video, and audio.
1.6 Related Documents
• MRX4000 PLUS Technical Reference Manual (part no.
400538-1)
• MRX4000 PLUS Quick Reference Card (part no. 400539-
1)
1.7 Ordering Documentation
Any of the above manuals may be ordered by contacting MRC
Customer Service:
Business Hours: Monday - Thursday
8:00 AM - 7:00 PM Eastern Time (US)
(0800 - 1900 hrs US ET)
Friday
8:00 AM - 5:00 PM Eastern Time (US)
(0800 - 1700 hrs US ET)
Telephone: [phone] (Press 3)
978-671-5700 (Press 3)

Introduction 1-3MRX4000 PLUS Operator’s Guide
Fax: [phone]
E-mail: [e-mail]
When contacting Customer Service, please have the following
information available:
• Model number and serial number of the unit. This is
located on a label on the left-hand side of each unit.
• Approximate purchase date.
• Firmware versions (depending upon the options
contained in your MRX4000 PLUS), which appear on the
MRX4000 PLUS alphanumeric display System Menus >
System Info >MRX DCC V:, Front Panel V:, MPEG V:,
MPEG FPGA V:, COFDM V:, and FMR V: menus.
or
• Firmware versions displayed on the Main page of the
MRX4000 PLUS Configuration Utility (Configurator)
software, when the Configurator is connected to the
MRX4000 PLUS.
1.8 Calling for Service
MRC Technical Support is available 24 hours a day, 7 days a
week. During regular business hours you can reach our expert
staff directly.
Business Hours: Monday - Friday
8:00 AM - 7:00PM Eastern Time (US)
(0800 - 1900 hrs US ET)
Telephone: [phone] (Press 4)
978-671-5700 (Press 4)
Fax: [phone]
E-mail: technicalsup[email protected]
After regular business hours and on weekends and holidays, you
can also reach our expert staff as follows:
Telephone: [phone]
Your call will be automatically forwarded to the on-call Technical
Support Specialist.
When contacting Technical Support, please have the following
information available:
• Model number and serial number of the unit. This is
located on a label on the left-hand side of each unit.
• Approximate purchase date.
• Firmware versions (depending upon the options
contained in your MRX4000 PLUS), which appear on the
MRX alphanumeric display System Menus > System
Info >MRX DCC V:, Front Panel V:, MPEG V:, MPEG
FPGA V:, COFDM V:, and FMR V: menus.
or
• Firmware versions displayed on the Main page of the
MRX4000 PLUS Configuration Utility (Configurator)
software , when the Configurator is connected to the
MRX4000 PLUS.
1.9 Supported Repairs
The MRX4000 PLUS is designed to be compact, rugged, and
reliable.
The MRX4000 PLUS requires specialized test equipment and
software to calibrate amplitude and frequency characteristics
after repair.

Introduction 1-4MRX4000 PLUS Operator’s Guide
There are NO supported field repairs for the MRX4000 PLUS.
Return the entire unit for factory repair.
If you attempt field repair, you risk damaging your
equipment. If your equipment is under warranty, you may also
affect your warranty coverage.
1.10 Tell Us What You Think!
We’d appreciate any comments or suggestions you have about
this manual. The more feedback we get, the better the manuals
get!
If you’re viewing this manual electronically, it’s easy - just click on
the link below to send us an E-mail.
Or, you can E-mail our Technical Support team at:
[e-mail]
Be sure to tell us what product you’re writing about, and which
manual - the Operator’s Guide, the Quick Reference Card, or the
Technical Reference Manual.
Feedback

2
Product Description 2-1MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
Product Description
2.1 Chapter Overview
This chapter provides an overall description of the MRX4000
PLUS High Performance Analog + Digital Integrated Receiver
Decoder (IRD) (MRX4000 PLUS), components, and capabilities.
Here are the topics covered:
2.2 System Descriptions
2.2.1 MRX4000 PLUS Description
The MRX4000 PLUS (Figure 2-1) is a highly reliable, flexible,
and compact video microwave Electronic News Gathering (ENG)
Topic Page
System Descriptions 2-1
MRX4000 PLUS Description 2-1
MRX4000 PLUS Configuration Options 2-2
Configuration Descriptions 2-2
Power Options 2-5
Mounting and Deployment Options 2-5
System Operation 2-5
MRX4000 PLUS Configurations 2-6
MPEG/COFDM Digital Configuration 2-6
FMR NTSC/PAL Analog Configuration 2-6
MPEG/COFDM/FMR NTSC/PAL Digital +
Analog Configuration
2-6
For More Information 2-6
analog and digital central receiver systems with demodulation
and decode functions for fixed installations.
Figure 2-1: MRX4000 PLUS
The MRX4000 PLUS is a fully functional, standalone, state of the
art ENG central receiver for analog and digital formats and
includes the ability to support encapsulated Internet Protocol (IP)
packetized service from an ENG or Outside Broadcast (OB) or
portable transmitter.
The MRX4000 PLUS is rack-mounted in a standard 19-inch
(48.3 cm) rack for fixed site operations.
The MRX4000 PLUS is used in both analog and digital ENG
central receive site operations. The unit allows operators to
switch between analog and digital operation modes where both
applications are used. The MRX4000 PLUS also provides
separate video and audio or broadband composite operation.
According to different applications, the MRX4000 PLUS can be
factory-configured as a baseband signal Frequency Modulation
Receiver (FMR) for analog radio applications, can be configured
as a baseband COFDM Demodulator and MPEG Decoder for
digital radio applications, or can be configured to include FMR
and COFDM/MPEG for both analog and digital radio
applications.

Product Description 2-2MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
Key features of the MRX4000 PLUS are as follows:
• Analog, digital, or analog + digital selectable
• RF/IF receiver with separate control unit techniques
• FMR receiver demodulation technology (analog) with
squelch capability
• COFDM demodulation and MPEG decoding technology
(digital)
• Digital demodulation for QPSK, 16QAM, and 64QAM
• IF (70 MHz) signal input and monitoring for demodulation
• Four selectable IF bandpass filters for both digital and
analog operations
• 900 MHz monitoring from the Low Noise Converter (LNC)
for system spectrum monitoring and display
• RF input for microwave radio applications (frequency from
1.99 to 2.5 GHz)
• ASI signal input and output connection interfaces
• SDI signal output connection interfaces
• Video and audio outputs for NTSC or PAL video/audio
signal transmission
• Front panel keypad and display operation and control
• Serial and parallel communication interface for remote
control and management
• Serial communication interface for remote control and
management
• Ethernet I/O interface for system control (Future Option -
Not currently active)
• System configuration control and management via the
MRX4000 PLUS Configuration Utility software
• Multiple configurations available.
2.2.2 MRX4000 PLUS Configuration Options
The MRX4000 PLUS is currently available in the following
configurations:
• MPEG/COFDM/FMR NTSC - Analog + Digital with RF/IF
Section
• MPEG/COFDM/FMR PAL - Analog + Digital with RF/IF
Section
• FMR NTSC - Analog Only with RF/IF Section
• FMR PAL - Analog Only with RF/IF Section
• MPEG/COFDM - Digital Only with RF/IF Section.
If your MRX4000 PLUS contains the analog FMR module, the
module will be be factory-configured for either NTSC or PAL
operation and cannot be changed by the user. If your MRX4000
PLUS contains the digital MPEG/COFDM modules, no factory or
user changes are required to configure the digital modules for
NTSC or PAL operation.
MRC is constantly working to expand and upgrade the
capabilities of the MRX4000 PLUS. Consult your Sales
Representative or contact the factory for the latest information.
2.2.3 Configuration Descriptions
General The front panel of all MRX4000 PLUS configurations
(Figure 2-2 on page 2-3) are identical and contain a POWER
LED, an ALERT LED, an ALARM LED, an alphanumeric
display, and six function switches. The front panel also contains
an RS-232 connector, located behind an access cover, to
provide interface connections to a Microsoft Windows-based PC.

Product Description 2-3MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
The rear panels of the various MRX4000 PLUS configurations
contain the I/O connectors, the input power connector, the power
switch, and power fuses.
Controls, indicators, and connectors contained on all
configurations of the MRX4000 PLUS are identified and
described in the “Routine Operation” Chapter on page 3-1.
Configurations The rear panels of the MRX4000 PLUS Digital
MPEG/COFDM, Analog + Digital MPEG/COFDM/FMR NTSC,
and Digital MPEG/COFDM/FMR PAL configurations are identical
and are shown in Figure 2-3 on page 2-4.
The rear panels of the MRX4000 PLUS Analog FMR NTSC and
FMR PAL configurations are identical and are shown in Figure 2-
4 on page 2-4.
Figure 2-2: MRX4000 PLUS Front Panel View
RS-232 Connector
(Located behind
access cover)
POWER LED ALERT LED
ALARM LED Alphanumeric
Display
Function Switches

Product Description 2-4MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
Figure 2-3: MRX4000 PLUS Digital and Analog + Digital Configurations - Rear View
Figure 2-4: MRX4000 PLUS Analog Only Configurations - Rear View
POWER IN
IF IN
- +
+24V OUT SUM ALARM FUSE
IF OUT
1234
VIDEO OUT VIDEO MON
AUDIO
BB OUT
WAYSIDE
900 MHZ SDI OUT ASI OUT
CONTROL
RF
IN
SERIAL/LQ
POWER IN
FUSE
AC Power Option
DC Power Option
POWER IN
IF IN
+24V OUT
- +
SUM ALARM FUSE
IF OUT VIDEO OUT VIDEO MON
AUDIO
1234
BB OUT 900 MHZ
CONTROL
RF
IN
SERIAL/LQ
POWER IN
FUSE
AC Power Option
DC Power Option

Product Description 2-5MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
2.2.4 Power Options
The flexible architecture of the MRX4000 PLUS allows the
various configurations to operate on the following AC and DC
power sources:
• 120/240 VAC, 50/60 Hz
• +24 or +48 VDC
• -24 or -48 VDC
Fuse ratings for the optional AC and DC power sources are
listed in Table 2-1.
Refer to the “Installation” Chapter on page 6-1 (part of the
MRX4000 PLUS Technical Reference Manual only) for additional
information.
2.2.5 Mounting and Deployment Options
The MRX4000 PLUS is mounted in a standard 19-inch (48.3 cm)
rack for fixed site operations.
For more details on installation of the MRX4000 PLUS in various
applications, see the “Installation” Chapter on page 6-1 (part of
the MRX4000 PLUS Technical Reference Manual only).
Table 2-1: Fuse Ratings
Operating Voltage Fuse Rating
240 VAC, 50/60 Hz 1.0A, 250V, AGC, Fast Blow
120 VAC, 50/60 Hz 2.0A, 250V, AGC, Fast Blow
48 VDC 5.0A, 250V, 5 x 20 mm
24 VDC 10.0A, 250V, 5 x 20 mm
+24 VDC (Output) 1.0 A, 250V, 5 x 20 mm, Slow Blow
2.2.6 System Operation
The MRX4000 PLUS offers two levels of system operation,
designed to match the needs of different personnel.
For the field operator, the MRX4000 PLUS has up to 9 Presets
that can be selected from the front panel. Each Preset controls
key parameters such as modulation, frequency, and audio and
video settings. Additional front panel-controlled settings are
dependent upon the configuration options contained in your
MRX4000 PLUS. See ”Using the MRX4000 PLUS Screens” on
page 3-8 for additional information.
For the advanced operator and technical staff, the MRX4000
PLUS Configuration Utility (Configurator) software allows
complete control of all parameters in your MRX4000 PLUS. The
Configurator software runs on a Microsoft Windows-based PC
and connects to the MRX4000 PLUS front panel RS-232
connector via an RS-232 serial interface cable.
Interfacing a PC to the MRX4000 PLUS in a connected system
gives you complete control of the unit. You can read the current
settings, program new settings, or return the unit to its factory
default settings. The Configurator software automatically detects
what hardware is installed in the system and applies the
appropriate configuration, regardless of the hardware being
configured.

Product Description 2-6MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
2.3 MRX4000 PLUS Configurations
MRX4000 PLUS configuration block diagrams are provided in
the following sections.
For details on connections between the MRX4000 PLUS and
receiver components, refer to the “Installation” Chapter on
page 6-1 (part of the MRX4000 PLUS Technical Reference
Manual only).
2.3.1 MPEG/COFDM Digital Configuration
The MRX4000 PLUS MPEG/COFDM Digital configuration block
diagram is shown in Figure 2-5 on page 2-7.
2.3.2 FMR NTSC/PAL Analog Configuration
The MRX4000 PLUS FMR NTSC/PAL Analog Configuration
Block Diagram is shown in Figure 2-6 on page 2-8.
2.3.3 MPEG/COFDM/FMR NTSC/PAL Digital +
Analog Configuration
The MRX4000 PLUS MPEG/COFDM/FMR NTSC/PAL Analog +
Digital Configuration Block Diagram is shown in Figure 2-7 on
page 2-9.
2.4 For More Information
Additional detailed technical information about the MRX4000
PLUS is contained in the MRX4000 PLUS Technical Reference
Manual. Specific topics contained in the MRX4000 PLUS
Technical Reference Manual are listed below:
Topic Chapter
Changing settings using
the Configuration Utility
software
See ”Advanced Operation”
on page 5-1
Installation See ”Installation” on page 6-
1
Connections to other
equipment
See ”Installation” on page 6-
1
Supported Repairs See ”Repair” on page 7-1
Repair Parts See ”Replacement Parts” on
page 8-1
Block Diagram See ”Theory of Operation”
on page 9-1

Product Description 2-7MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
Figure 2-5: MRX4000 PLUS MPEG/COFDM Digital Configuration Block Diagram
ENG
Master
Controller
MC-17
Slave
Control
ASC140/
S750
COFDM
MPEG
RF Front End
Modules
BB
Video
Audio (Digital)
ASI
ASI
SDI
Microcontroller
PC / Laptop
Computer
Digital
-10dBm
RF Signal
IF OUT
AUDIO 1 - 2
BB OUT
VIDEO MON
VIDEO OUT
ASI OUT
SDI OUT
Remote Serial Interface To Slave Control
SUM ALARM
RS-232
+24 V OUT
DCC Board
Remote Control Connection
WAYSIDE
Wayside
Control
Cable
AGC
-10 dBm
~ 20 dB
+5.5
VDC
+5.5
VDC
IF Level
Monitor
IF Input
(70 MHz)
AUDIO 3 - 4
Data
Control
Data
Control
Data
Control
Front Panel
Control / Display
Data Comm. & Control
Video Signal Switch
(Analog/Digital)
IF IN
DC Power
Supply
+5.5 V
+12 V
-12 V
RF IN
+5.5 VDC
+/- 12
VDC
900 MHZ
SERIAL/LQ
(70 MHz)
Ethernet Card
CONTROL
(Future Option -
Not Currently
Active)
120/240 VAC 50/60 Hz
OR
+/-24 or +/-48 VDC
POWER IN

Product Description 2-8MRX4000 PLUS Operator’s Guide/
Technical Reference Manual
Figure 2-6: MRX4000 PLUS FMR NTSC/PAL Analog Configuration Block Diagram
FMR
ENG
Master
Controller
MC-17
Slave
Control
ASC140/
S750
RF Front End
Modules
Microcontroller
PC / Laptop
Computer
0 to +5
dBm
RF Signal
+5.5
VDC
IF OUT
AUDIO 1 - 2
BB OUT
VIDEO MON
VIDEO OUT
Remote Serial Interface To Slave Control
SUM ALARM
RS-232
+24 V OUT
DCC Board
Remote Control Connection
Audio (Analog)
Control
Cable
AGC
0 to +5 dBm
~ 20 dB
IF Level
Monitor
IF Input
(70 MHz)
AUDIO 3 - 4
BB
Video
Data
Control
Data
Control
Front Panel
Control / Display
Data Comm. & Control
IF IN
DC Power
Supply
+5.5 V
+12 V
-12 V
RF IN
+5.5 VDC
900 MHZ
SERIAL/LQ
(70 MHz)
Ethernet Card
CONTROL
(Future Option -
Not Currently
Active)
120/240 VAC 50/60 Hz
OR
+/-24 or +/-48 VDC
POWER IN