Nautel XR12 User manual

XR12 Transmitter
Installation Manual
Document:XR12-INST
Issue: 3.0 2009-07-15
Status: Preliminary

Nautel Limited
10089 Peggy’s Cove Road
Hackett’s Cove, NS Canada B3Z 3J4
Phone: [phone] or
Toll Free: +1.877.6NAUTEL (6628835) (Canada & USA only)
Fax: [phone]
Nautel Inc.
201 Target Industrial Circle
Bangor, Maine USA 04401
Phone: [phone]
Fax: [phone]
Customer Service (24 hour support)
+1.877.628.8353 (Canada & USA only)
+1.902.823.5100 (International)
Email: [email protected]
Web: www.nautel.com
The comparisons and other information provided in this document
have been prepared in good faith based on publicly available
information. The reader is encouraged to consult the respective
manufacturer's most recent published data for verification.
© Copyright 2009 NAUTEL. All rights reserved.

XR12 Installation Manual Table of contents
Page v
Contents
About this manual vii
About safety ix
Safety precautions xi
Preparing for installation 1-1
Unpacking and positioning 2-1
Installing the power transformer 3-1
Connecting the station reference ground 4-1
Connecting ac power 5-1
Installing the RF connector 6-1
Adjusting the spark gap 7-1
Audio and IBOC inputs 8-1
Audio configuration 8-2
Control and monitoring 9-1
Controls 9-1
Alarm definitions 9-1
Remote control circuits and alarms 9-6
Remote performance monitoring 9-11

XR12 Installation Manual
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LAN interface (NxLink) 9-12
Other considerations 10-1
External RF drive source 10-1
External 10 MHz frequency reference 10-2
Commissioning tasks 11-1
Pre-commissioning tasks 11-1
Commissioning 11-3
Going on-air 11-6
Parts and tools 12-1
Contacting Nautel 12-1
Parts supplied by Nautel 12-1
Parts not supplied by Nautel 12-2
Parts ordering 12-2
Module replacement program 12-2
Tools for installation 12-3
Pre-installation / Installation assistance 13-1
Pre-installation consulting 13-1
Installation and commissioning service 13-1
Online documentation 13-3
On-site support 13-3
Training 13-3
Standard warranty 13-4
Extended warranties 13-7
List of terms 14-1
Index IX-1

XR12 Installation Manual
Issue 3.0 2009-07-15 Page vii
About this manual
This manual provides information about installing an XR12 transmitter. This manual is intended for
use by qualified, trained installers.
Technical support
Nautel offers technical support to customers over the Internet and by telephone. Nautel’s customer
support team will answer your questions and work with you to identify and resolve problems.
For technical support, call the Customer Support Team at 902-823-3900 or - in U.S.A. and Canada
only - call toll free at 1-877-6NAUTEL (662-8835). Or find us on the Internet at http://
www.nautel.com.
For parts and tools information, see “Parts and tools” on page 12-1 of the XR12 Pre-Installation
Manual.
For accessories or spares, see “Accessories” on page 10-1 of the XR12 Pre-Installation Manual.
For standard warranty information, see “Pre-installation assistance” on page 11-1 of the
XR12 Pre-Installation Manual.
For extended warranty information, see “Pre-installation assistance” on page 11-1 of the
XR12 Pre-Installation Manual.
XR12 transmitter manuals
The XR12 documentation suite includes the following documents:
XR12 Pre-installation Manual, XR12-PREINST. The Pre-installation Manual provides
instructions and reference information needed when planning and preparing for the installation of an
XR12 transmitter.
Nautel Site Protection Manual. The Site Protection Manual provides detailed information
about protecting your site from lightning-related hazards.
XR12 Installation Manual, XR12-INST. The Installation Manual provides instructions and
reference information needed when installing an XR12 transmitter.

XR12 Installation Manual
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XR12 Operating and Maintenance Manual, XR12-OPS-MAINT. The Operating and
Maintenance Manual provides instructions for operating, maintaining and troubleshooting
an XR12 transmitter. It also provides reference information needed when performing diagnostic
procedures.
XR12 Troubleshooting Manual, XR12-TROUBLE. The Troubleshooting Manual provides
detailed technical information about the XR12 transmitter, including electrical schematics and
mechanical drawings.
Nautel website / Online resources
The Nautel website provides useful resources to keep you up to date on your XR12.
Nautel User Group (NUG)
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. Registration is available online and is required.
Documentation: online and printed
The website’s NUG section provides online access to all the documentation for your XR12.
Documentation is provided in Acrobat (PDF) format. You can use the documentation online or print
the sections that you need.
When using online documents:
• Click on blue text (hyperlinks) to jump to a related section, or to get additional information
(e.g., view a term’s definition).
• To search a document to find keywords, use Find in Acrobat Reader’s Edit menu.
• To quickly find a specific section, click the section in the PDF file’s Bookmarks list.
When using printed documents:
• To find keywords, go to the Index section at the end of the manual.
• To find a specific term, go to the List of Terms section near the end of the manual.

XR12 Installation Manual
Issue 3.0 2009-07-15 Page ix
About safety
All Nautel transmitters are designed to meet the requirements of EN60215, Safety Requirements for
Radio Transmitters.
The philosophy of EN60215 is that the removal of any cover or panel that can only be opened using
a tool is a maintenance activity, and that any person performing a maintenance activity is expected to
be trained for that activity. Under EN60215, it is assumed that trained personnel will be
knowledgeable and will take precautions such as removing all power to the transmitter before
accessing its components.
Electrical hazards
To remove power from the transmitter, switch off and lock out the ac power. There are three amber
LEDs at the bottom rear of the cabinet that glow to remind anyone who has not turned off the
power that the system is live and serious danger is present.
Mount the transmitter ac power disconnect switch/breaker close to the transmitter so that it can be
reached quickly in an emergency. Clearly label the disconnect switch/breaker (e.g., EMERGENCY
SWITCH).
After turning off the power, always perform a measurement to confirm that the power is off before
touching anything within the transmitter. If the wrong breaker was opened, the equipment will be
live.
Use only a non-contact voltage probe or a safety voltmeter (available from vendors such as Fluke,
Ideal, and Teagam).
Use a proper lockout procedure to ensure that another worker cannot accidentally reapply power
while you are performing maintenance on any part of the transmitter or site.
WARNING: It is not enough to remove RF power. The power line is still
connected.
WARNING: Do not use an ordinary multimeter to check for voltage,
since it may have been left inadvertently on the AMP (A) range,
triggering a short and an arc blast that could result in severe burns
and even death.

XR12 Installation Manual
Page x Issue 3.0 2009-07-15
Lightning hazards
Before opening the transmitter and touching internal parts, remove and solidly ground the antenna
connection.
RF hazards
A serious RF hazard and very high voltages exist in the vicinity of the antenna and its networks
during normal operations.
Toxic hazards
There are devices used in this equipment containing beryllium oxide ceramic, which is non-hazardous
during normal device operation and under normal device failure conditions. These devices are
specifically identified with “(BeO)” in the Description column of the Troubleshooting 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.
Other hazards
Ensure that appropriate fire alarms and fire extinguishers are available. Extinguishers must be suitable
for use on electrical fires.
Many other site safety risks exist. It is beyond the scope of this manual to identify all the risks and
procedures.
WARNING: It is not enough to ground the antenna terminal with the
antenna still connected. Even a small impedance in the ground strap
will result in lethal voltages during a lightning strike.