Nautel NX200 User manual

NX200
Main-Standby
Transmitter
Systems
All India Radio (AIR)
Common Sites
Installation and Operation Manual
Issue 0.3 .............................28 October 2014
Nautel Limited
10089 Peggy's Cove Road,
Hackett's Cove, NS, Canada B3Z 3J4
T.+1.902.823.3900 F.+1.902.823.3183
[email protected]
U.S. customers please contact:
Nautel Inc.
201 Target Industrial Circle, Bangor ME 04401
T.+1.207.947.8200 F.+1.207.947.3693
[email protected]
e-mail: [email protected]
www.nautel.com
Copyright 2014 NAUTEL. All rights reserved.

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
Warranty
by Nautel Limited/Nautel Inc. (herein after referred to as Nautel)
Nautel Limited/Nautel Incorporated, hereinafter referred to as Nautel, guarantees all mechanical and electrical parts of
the equipment for a period of 18 months from date of shipment and 12 months from date of commissioning.
1. A "Part Failure" shall be deemed to have occurred when the part has become defective, or does not have the
characteristics required for the specified equipment performance:
(a) When the equipment is operated within the design parameters, and
(b) When the equipment is installed and adjusted according to Nautel's prescribed procedures as stated in
the instruction manual.
2. Nautel shall provide replacements for all "Parts" at no cost to the Customer when they become defective during
the warranty period, and upon the return of the defective part.
3. In the event that a "Part" fails during the warranty period and causes damage to a sub-assembly that cannot be
readily repaired in the field, the entire sub-assembly so damaged may be returned to Nautel for repair. The
repairs will be made without charge to the Customer.
4. Where warranty replacements or repair are provided under items 2 or 3, Nautel will pay that part of the shipping
costs incurred in returning the part/assembly to the Customer.
5. Warranty replacement parts and repair, which are provided under items 2 or 3, shall be guaranteed for a period
of ninety days from date of shipment or until the end of the original warranty period, whichever occurs later.
6. Nautel will not assume responsibility for any charges incurred by other than Nautel employees.
7. Nautel shall have the privilege of investigating whether failures have been caused by factors beyond its control.
8. Nautel shall in no event be liable for any consequential damages arising from the use of this equipment.
9. When requesting a warranty repair/replacement, please provide complete and accurate information. Observe
the instructions regarding 'Equipment Being Returned to Nautel' on page two of this warranty and provide the
information requested.
10. When ordering spare/replacement parts, please provide complete and accurate information. Refer to the parts
list of the Repair manual for ordering information. Provide as much of the information requested for 'Equipment
Being Returned to Nautel' on page two of this warranty as is practical. The information identified by an asterisk
is the minimum required.
Nautel Limited Nautel Inc.
10089 Peggy's Cove Road 201 Target Industrial Circle
Hackett's Cove NS Canada B3Z 3J4 Bangor ME USA 04401
T. +1.902.823.3900 F. +1.902.823.3183 T. +1.207.947.8200 F. +1.207.947.3693
24hr. Answering Service 1.902.823.3900
Customer Service Notice
A ‘Technical Assistance’ and ‘Plug-in Module Exchange’ service is available to Nautel users.

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
Factory Support
TECHNICAL ASSISTANCE
The Nautel field service department provides telephone technical assistance on a 24 hour, seven days a week basis.
Requests by other media (facsimile or e-mail) will be responded to the next working day if received after Nautel's normal
working hours. Contact the appropriate field service centre from the following:
U.S.A. customers use: Nautel Incorporated Telephone [phone] (24 hours)
201 Target Industrial Circle Facsimile 207-947-3693
Bangor, Maine 04401
All other customers use: Nautel Limited Telephone [phone] (24 hours)
10089 Peggy’s Cove Road, Facsimile 902-823-3183
Hackett’s Cove, NS, Canada E-Mail [e-mail]
B3Z 3J4 Web www.nautel.com
MODULE EXCHANGE SERVICE
In order to provide Nautel customers with a fast and efficient service in the event of a problem, Nautel operates a factory
rebuilt, module exchange service which takes full advantage of the high degree of module redundancy in Nautel
equipment. This module exchange service is operated from Nautel’s factory in Bangor, Maine and Hackett’s Cove,
Nova Scotia. These two locations allow us to provide a quick turn around service to keep our customers on the air.
During the transmitter’s warranty period, up to thirteen months from shipment, repair and exchange of modules is at no
charge to the customer. When the warranty has expired, a charge of 80% of the list price for all exchanged modules is
made. If the faulty module is returned to Nautel within 30 days, a credit is issued reducing this charge by one half to
40% of the list price. U.S.A. customers are required to contact our Bangor, Maine facility. Canadian and overseas
customers should contact our Nova Scotia, Canada facility.
EQUIPMENT BEING RETURNED TO NAUTEL
For all equipment being returned to Nautel and all requests for repairs or replacements:
Obtain an RMA number from Nautel (you must have an RMA number to return equipment)
Mark the item as 'field return'
Mark the item with the RMA number assigned by Nautel
Address the item to the appropriate Nautel facility
Complete and accurate information regarding the equipment being returned will ensure prompt attention and will
expedite the dispatch of replacements. Refer to the nameplate on the transmitter and/or the appropriate
module/assembly to obtain name, type, part and serial number information. Refer to the parts list of this manual or the
appropriate service instruction manual for additional ordering information.
The following information should accompany each request:
* Model of Equipment
* Serial number of Equipment
* Name of Part/Assembly
Serial number of Part/Assembly
* Complete reference designation of Part/Assembly
* Nautel's part number of Part/Assembly
* OEM's part number of Part/Assembly
Number of hours in Use
Nature of defect
* Return shipping address
* Denotes minimum information required to order spare/replacement parts

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
Safety Symbols
General definitions of safety symbols used on equipment or in manuals.
DANGER – HIGH VOLTAGE
Indicates dangerous voltages (in excess of 72 volts), capable of causing a
fatal electrical shock, are present on or near parts bearing this label.
GROUND (EARTH)
Used with wiring terminals to indicate the terminal must be connected to
earth ground before operating equipment. If power is supplied without
grounding the equipment, there is a risk of receiving a severe or fatal
electrical shock. Also used on electrical schematics to indicate a part that is
connected to earth ground.
GROUND (PROTECTIVE or SAFETY)
Used with protective (safety) conductor terminals to indicate the terminal
must be connected to ground before operating the equipment. If power is
supplied without grounding the equipment, there is a risk of receiving a
severe or fatal electrical shock.
ELECTROSTATIC SENSITIVE
Indicates part or assembly is or contains devices that are electrostatic
sensitive. To prevent damage to these devices, ensure the handling
procedures outlined in this manual are observed.
WARNING A WARNING denotes a hazard. It identifies an operating procedure,
condition, etc. which, if not strictly observed or adhered to, could result in
injury or death to personnel. Throughout the technical manual, a
WARNING shall immediately precede the text to which it applies.
CAUTION A CAUTION denotes a hazard. It identifies an operating procedure,
condition, etc., which, if not strictly observed or adhered to, could result in
damage to, or destruction of the equipment. Throughout the technical
manual, a CAUTION shall immediately precede the text to which it
applies.
NOTE A NOTE denotes important information pertaining to an operating
procedure, condition, statement, etc., which is essential to highlight. A
NOTE may precede or follow the text to which it applies.

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
Toxic Hazard Warning
There may be devices used in this equipment containing beryllium oxide ceramic, which is
non-hazardous during normal device operation and under normal device failure conditions. If
applicable these devices are specifically identified in the equipment manual’s parts list(s).
DO NOT cut, crush or grind devices because the resulting dust may be HAZARDOUS IF
INHALED. Unserviceable devices should be disposed of as harmful waste.

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
Contents Page
1 GENERAL INFORMATION
1.1 INTRODUCTION 1-1
1.2 PURPOSE AND SCOPE OF THIS MANUAL 1-1
1.2.1 Online Resources 1-2
1.2.1.1 Nautel User’s Group 1-1
1.2.1.2 Online Documentation 1-1
1.3 PURPOSE OF EQUIPMENT 1-1
1.4 MECHANICAL DESCRIPTION 1-2
1.5 TEST EQUIPMENT AND SPECIFIC TOOLS 1-3
1.6 GLOSSARY OF TERMS 1-3
1.7 FACTORY SUPPORT 1-3
2 PREPARATION FOR USE AND INSTALLATION
2.1 INTRODUCTION 2-1
2.2 PRE-INSTALLATION REQUIREMENTS 2-1
2.2.1 Test Load and Dry Cooler - Pre-Installation
Requirements 2-3
2.2.2 Antenna Tuning Unit - Pre-Installation Requirements2-7
2.2.3 Ac Power System - Pre-Installation Requirements 2-7
2.2.4 4-Port Switch, Controller and IMU - Pre-Installation
Requirements 2-9
2.2.5 RF Coaxial Transmission Line - Pre-Installation
Requirements 2-13
2.2.6 Ventilation System - Pre-Installation Requirements 2-17
2.2.7 Lightning Protection 2-21
2.2.7.1 Antenna Feed Cable 2-21
2.2.7.2 Antenna Tower 2-21
2.2.7.3 External Control/Monitor Wiring 2-21
2.2.8 Modulating Audio 2-21
2.2.9 Safety Interlocks 2-21
2.2.9.1 External Electrical System Interlock 2-22
2.2.9.2 Mechanical Safety Interlock (Key Sequence System) 2-22
2.2.10 Remote Control Circuits 2-22
2.2.11 Remote Status Indications 2-22

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
Contents Page
2 PREPARATION FOR USE AND INSTALLATION (continued)
2.3 INSTALLATION TASKS 2-23
2.3.1 Accepting the Shipment 2-23
2.3.2 Unpacking Instructions 2-24
2.3.3 Visual Inspection 2-24
2.3.4 Cabinet Pre-Positioning 2-25
2.3.5 Not Used
2.3.6 Assembling the Main-Standby Transmitter System 2-25
2.3.7 Test Load and Dry Cooler - Installation Tasks 2-27
2.3.8 ATU- Installation Tasks 2-33
2.3.9 Ac Power Components - Installation Tasks 2-37
2.3.9.1 Not Used
2.3.9.2 Ac Breaker Panel 2-39
2.3.9.3 Ac Wiring Cable Trays 2-43
2.3.9.4 Primary Ac Wiring 2-43
2.3.9.5 Secondary Ac Wiring 2-49
2.3.9.6 Other Ac Wiring 2-51
2.3.10 4-Port Switch, Controller, IMU - Installation Tasks 2-57
2.3.11 Transmission Line - Installation Tasks 2-65
2.3.12 Ventilation (Air Handling) System - Installation
Tasks 2-71
2.3.13 Miscellaneous Installation Tasks 2-79
2.4 KEY SEQUENCE SYSTEM 2-80
2.5 COMMISSIONING AND OPERATION 2-83
2.5.1 Precautions to Observe 2-83
2.5.2 Preliminary Settings 2-83
2.5.3 Initial Operation 2-84

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
List of Figures Page
1-2 Site Layout - NX200 Main-Standby Transmitter System (Example) 1-5
2-1 Partial Top View of NX200 System (201-1321-01;Common, showing Soda
Load Kit (228-8305-02) 2-5
2-2 Not Used
2-3 Assembly/Dimensional Information - 4-Port Switch for NX200 systems 2-11
2-4 Assembly/Dimensional Information - IMU for all Transmitter systems 2-12
2-5 NX200 (Common) Main-Standby System Transmission Line Layout
(Nautel Part # 228-8307-01) 2-15
2-6 NX200 (Common) Main-Standby System Ventilation Layout 2-19
2-7 Air Handling Process for NX Main-Standby Transmitter Systems 2-20
2-8 Lifting the Dry Cooler (shown in shipping crate) 2-28
2-9 2-1/2 Inch Plumbing Kit (228-8360-03) for Soda Load and Dry Cooler for
NX200 systems (Common) 2-31
2-10 Wiring/Connection Information for Soda Load and Dry Cooler Wiring Kits 2-32
2-11 Antenna Tuning Unit - Ground Switch Views 2-35
2-12 Antenna Tuning Unit - Safety Screen Views 2-36
2-13 Not Used
2-14 Terminating Teck 90 conductors 2-39
2-15 Assembly Details - Breaker Panel (UE183A) for NX200 Systems 2-41
2-16 Step-by-step instruction to install cable cleats 2-45
2-17 Arranging three-phase wires in cable cleats (NX300 system example
shown) 2-46
2-18 Ac Disconnect Switch wiring connection (NX300 switch shown), door
removed for clarity 2-47
2-19 NX Power Transformer Primary Terminals (H1, H2 and H3), access
panel removed for clarity 2-48
2-20 NX Power Transformer Secondary Connections (NX300 transformer
shown) 2-49
2-21 NX200 (Common) Mains Equipment - Primary (228-8322-01) and Secondary
(228-8323-02) Wiring Kits 2-53
2-22 One-Line Diagram - NX200 Ac Power Distribution 2-54
2-23 Ac Wiring/Connection Information for NX200 Systems 2-55
2-24 Trip Circuit for Breaker Panel's Main Breaker 2-56
2-25 Interconnect Cable between 4-Port Switch and Controller 2-61
2-26 Control/Monitor Assembly (228-2100) User Interface 2-62
2-27 Electrical Schematic - NX Main-Standby Transmitter System 2-63
2-28 Electrical Schematic - Control/Monitor Assembly (228-2100) 2-64
2-29 Transmission Line - Box-line 4-ft Section Assembly
(Nautel Part # 228-6040) 2-67
2-30 Transmission Line Box-line Elbow Assembly (Nautel Part # 228-6030) 2-68
2-31 Cutting and Installation Tips for Coaxial Hard-Line (indoor only) 2-69
2-32 Thermostat Wiring Diagram 2-73

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
List of Figures (continued) Page
2-33 Example Photos of Transmitter Ventilation System 2-74
2-34 Not Used
2-35 Hanging Vibration Isolator Assembly with Typical Installation
Configuration (required for vibration and noise reduction) 2-76
2-36 Example of Using Tie-In Section to Fit Between Spiral and
Square Ductwork 2-77
2-37 Typical Key Sequence Diagram for NX200 Transmitter Systems 2-82
List of Tables Page
2-1 Recommended Tools, Equipment and Resources Required for Installation 2-2
2-2 Ventilation System Details 2-17
2-3 Nautel Supplied Kits for the NX200 Transmitter Systems 2-23
2-4 Specifications and Kits for the Soda Load and Dry Cooler for each
NX System 2-27
2-5 Plumbing Kits for Soda Load and Dry Cooler for each NX System 2-29
2-6 ATU System Part Numbers 2-33
2-7 Specifications and Kits for the Ac Main Equipment for each NX System 2-37
2-8 4-Port Switch Kits and IMUs for each NX System 2-57
2-9 Nautel Supplied Transmission Line Kits 2-65
2-10 Nautel Supplied Ventilation Kits 2-71
List of Appendices
ASystem Installation Drawings
BSoda Load and Dry Cooler
CAntenna Tuning Unit
DAc Power
E4 Port Switch / IMU
FTransmission Line
GVentilation
HDRM Components (includes electrical schematic of DRM cabinet)

NX200 Main-Standby Transmitter System Installation and Operation Manual Oct.28.14
Release Control Record
Issue Date Reason
0.1 10 January 2014 Customized for NX200 AIR - common systems
0.2 22 July 2014 Added Appendix H – DRM Components
0.3 28 October 2014 Corrected warranty terms; removed Figure 2-34 (not
used)

NX200 Main-Standby Transmitter System Installation and Operation Manual Page 1-1
Section 1 General Information Issue 0.3
NX200 Main-Standby Transmitter System
INSTALLATION AND OPERATION MANUAL
Section 1 GENERAL INFORMATION
1.1 INTRODUCTION
Each NX200 Main-Standby Transmitter System consists of two AM broadcast transmitters, a
4-port switch and a test load connected in a main-standby arrangement. This system allows
one transmitter to act as the backup for the main transmitter in the event of a main
transmitter failure. One transmitter (transmitter A) in the system is a Nautel NX200
transmitter (200 kW capable). The other transmitter is an existing on-site transmitter.
Detailed information unique to the main-standby system (i.e. site preparation, system
installation, theory of operation, parts/wiring lists and electrical schematic/assembly detail
drawings) is provided in this document and its various appendices. Refer to the NX200
Transmitter documentation suite for information specific to each NX200 transmitter.
1.2 PURPOSE AND SCOPE OF THIS MANUAL
This NX200 Main-Standby Transmitter System Technical Instructions Manual provides
information for preparing for the delivery, operation and installation of the NX200 Main-Standby
Transmitter system. This manual is intended for use by field technicians, site managers and
installation planners.
1.2.1 Online Resources
The Nautel website (www.nautel.com) provides useful resources to keep you up to date on
your equipment.
NOTE
From the Nautel website’s main page, choose the product line that suits your equipment. If you
select ‘Radio Broadcast Communications’ or ‘Navigation and Communication’, the next page
contains a Nautel User’s Group (NUG) link.
1.2.1.1 Nautel User’s Group
The website includes a special section that customers can log into in order to access the
Nautel customer newsletter, product manuals, frequently asked questions (FAQ), information
sheets, and information about field upgrades.
1.2.1.2 Online Documentation
The website’s NUG section provides online access to all the documentation for your NX300
main-standby AM broadcast transmitter system. Documentation is provided in Acrobat (PDF)
format. You can use the documentation online or print the sections that you need.
1.3 PURPOSE OF EQUIPMENT
The NX200 Main-Standby Transmitter system is intended to be used in conventional AM
broadcasting stations. Remote control facilities are incorporated to allow unattended operation
at a transmitter site, remotely located from station studios.

Page 1-2 NX200 Main-Standby Transmitter System Installation and Operation Manual
Issue 0.3 Section 1 General Information
1.4 MECHANICAL DESCRIPTION
See Figure 1-1. Appendix A contains complete system layout drawings for the transmitter site.
Each transmitter system consists of a Nautel NX200 Transmitter (Transmitter A - Unit 1), the
existing on-site transmitter (Transmitter B - Unit 2) a control/monitor DRM cabinet (A1), an
impedance matching unit (A2), a 4-port switch (A3), an antenna tuning unit (ATU) (A4), a test
load (A5), a dry cooler and a control/monitor assembly.
Refer to the NX200 Transmitter’s documentation to identify the location of all electrical parts
contained within transmitter A. Connections to the station antenna, test load, impedance
matching unit, transmitters A and B and the 4-port switch are made via EIA connectors,
mounted at the top of each unit.
Each NX200 Transmitter has an external power transformer cabinet.
Various kits are provided to aid in the installation of the transmitter system, including:
Ac Mains Kit: contains all ac power related components such as breaker panel, ac
disconnect switches, primary and secondary wiring and the cable tray sections that -
when assembled - will be suspended above the main-standby transmitter system to
facilitate the connection of ac power between the breaker panel, power transformer
cabinet and transmitter.
Soda Load Kit: contains a 120-ohm soda load, rated for the maximum output power
of the transmitter system, and an associated dry cooler for the test load. The test load
will be used during the commissioning and testing of the transmitter system. The kit
also contains the necessary wiring, disconnect switch and plumbing to connect the test
load to the system.
Transmission Line Kit: contains all the necessary coaxial transmission line (rigid
hardline or square box-line) that - when assembled - will be suspended above the
main-standby transmitter system to facilitate the RF connections between the
transmitters, impedance matching unit, 4-port switch, test load and antenna system.
Ventilation Kit: contains the duct sections that - when assembled - will be suspended
above the main-standby transmitter system to facilitate the heating and cooling
requirement for the transmitter system room.
4-Port Switch Kit: contains the main-standby contactor switch for the transmitter
system and the control/monitor assembly that controls the switch position, as well as
provides the wiring hub for the transmitters, test load and system interlocks. The
control/monitor assembly is intended for mounting in a 19-inch cabinet, in close
proximity to the 4-port switch.
Impedance Matching Unit (IMU): matches the impedance of the NX200 Transmitter's
RF output from 50 ohms to 120 ohms for proper antenna operation. Positioned
between the NX200 Transmitter's RF output and the 4-port switch.

NX200 Main-Standby Transmitter System Installation and Operation Manual Page 1-3 (1-4 Blank)
Section 1 General Information Issue 0.3
Antenna Tuning Unit (ATU): interfaces between the selected transmitter's 120-ohm
output and the antenna input. There are two manually activated ground switches to
allow grounding of the open line center conductor and the open bus to the antenna
tower. These ground switches are part of the mechanical safety interlock system
(see 2.4). The ATU is intended for installation in a user-provided shelter (hut), which
is outside the main transmitter system building. Refer to Appendix C for detailed
information on the ATU.
1.5 TEST EQUIPMENT AND SPECIFIC TOOLS
Refer to Section 2 of this manual and to the NX Pre-Installation Manual for the list of special
tools and test equipment required.
1.6 GLOSSARY OF TERMS
Refer to any of the NX manuals for the Glossary of Terms relevant to each transmitter.
1.7 FACTORY SUPPORT
Nautel provides after sale factory support. Technical assistance is available on a 24 hours,
seven days a week basis. A factory service facility for repair of modules/assemblies is also
available. Please refer to the Factory Support portion of the Warranty pages at the front of this
manual for additional information.

Dimensions = mm (inches)
Site Layout – NX200 Main-Standby Transmitter System
Issue 0.3 Not to Scale Figure 1-1 Page 1-5

NX200 Main-Standby Transmitter System Installation and Operation Manual Page 2-1
Section 2 Preparation for Use and Installation Issue 0.3
NX200 Main-Standby Transmitter System
INSTALLATION AND OPERATION MANUAL
Section 2 PRE-INSTALLATION AND INSTALLATION
2.1 INTRODUCTION
This section contains pre-installation and installation information for the NX200 main-standby
transmitter system.
NOTE
Failure to comply with recommendations and instructions in this section may void the
manufacturer’s warranty. Please review the Nautel warranty terms and conditions at the
beginning of this technical manual.
2.2 PRE-INSTALLATION REQUIREMENTS
Prepare the site to receive the transmitter system prior to its delivery and/or installation.
Consider the following when preparing new sites and use it as the evaluating criteria at
existing sites. Nautel recommends that you incorporate all requirements to ensure optimum
reliability and performance.
Pre-installation considerations for the NX main-standby transmitter system are broken down
into sections based on major components or sub-systems within the transmitter system. This
section describes high-level system level pre-installation considerations and, in some cases,
makes reference to the sub-system sections. After completing the tasks outlined in this
section, proceed to the sub-system pre-installation considerations for more detailed
information:
Table 2-1 lists the tools, equipment and resources you will need during installation.
(a) Review the pre-installation requirements for each sub-system kit (see reference
paragraphs below).
Test Load and Dry Cooler - see paragraph 2.2.1
Antenna Tuning Unit - see paragraph 2.2.2
Ac Power System- see paragraph 2.2.3
4-Port Switch and Impedance Matching Unit - see paragraph 2.2.4
Transmission Line - see paragraph 2.2.5
Ventilation - see paragraph 2.2.6
Miscellaneous - see paragraph 2.2.7
(b) Clean and vacuum the transmitter system room prior to receiving the system.

Page 2-2 NX200 Main-Standby Transmitter System Instruction Manual
Issue 0.3 Section 2 Preparation for Use and Installation
Table 2-1: Recommended Tools, Equipment and Resources Required for Installation
Item/Resource Application
Forklift, 2000 kg
(4500 lb) capable
Mechanical assistance for moving heavy system crates; positioning heavy
components such as NX200 transmitter, transformers, ATU, soda load, dry cooler.
Skyjack, 250 kg
(550 lb) capable
Mechanical assistance for lifting elevated items into place such as cable tray,
transmission line, ventilation ducts, 4-port switch, IMU, etc.
Licensed
electrician To safely plan and install ac wiring and cable tray system. Schedule accordingly.
Licensed
plumber
To plan and install plumbing between the soda load and dry cooler. See Soda Load
Kit - Pre-installation Considerations and Installation Instructions for more
information. Schedule accordingly.
Licensed
ventilation
technician
To plan and install the ventilation system that moves the exhaust air from the
transmitter output to the transmitter room or outside of the building. See Ventilation
Kit - Pre-installation Considerations and Installation Instructions for more
information. Schedule accordingly.
Pipe threader To thread any pipe sections provided with the Plumbing Kit.
Support
Structures
The end user must provide a means to support various system components,
including the impedance matching unit (IMU), 4-port switch, all ventilation ducting,
all coaxial transmission line and all ac cable tray sections. It is the responsibility of
the end user to ensure these floor-mounted support structures do not infringe on the
clearance requirements of the transmitter components that are installed on the floor
of the transmitter building.
Pipe cutters To trim the inner and outer conductors of 6-1/8 inch RF coaxial hardline.
Deburring tool
and Scotch
Bright pads
To clean up the cut ends of RF coaxial hardline.
Standard hand
tools
Miscellaneous tool kit including various screwdrivers (Phillips, flat, etc.), nutdrivers,
metric wrench set, pliers, wire-cutters, etc.

NX200 Main-Standby Transmitter System Installation and Operation Manual Page 2-3 (2-4 Blank)
Section 2 Preparation for Use and Installation Issue 0.3
2.2.1 Test Load and Dry Cooler - Pre-installation Requirements
Appendix References:
Appendix A
Appendix B
(a) Ensure a floor drain (as a minimum) and preferably a containment area is available to
handle any possible fluids from leakage in the soda load or associated plumbing. The
containment area should have 250 to 300 gallon (1135 to 1362 L) capacity.
(b) Nautel recommends that the floor under the soda load be reinforced concrete (see
Figure 2-1 for details).
(c) Obtain a supply of distilled water (approximately 140 US gallons) for the soda load.
(d) Build a foundation for the dry cooler (see Figure 2-1 for details). To allow filling and air
bleeding of the soda load to dry cooler plumbing, ensure the foundation is the same
elevation or higher than the soda load's base.
(e) Obtain a supply of potable water (approximately 100 US gallon and piping) for the dry
cooler. NOTE: Nautel provides glycol (part # UE149) to serve as part of this mixture.
When preparing amounts, plan for 70% potable water and 30% glycol.
(f) Clean and inspect the areas where the soda load and dry cooler will be installed, noting
the soda load is intended for installation inside the main transmitter building and the dry
cooler is intended for installation outside the building.