Garmin GBR23 User Manual
owner’s
manual
and
reference
guide
GBR 23
beacon receiver
© 2000 GARMIN Corporation
GARMIN International, Inc.
1200 East 151st Street, Olathe, Kansas 66062, U.S.A.
Tel. 913/397.8200 or 800/800.1020
Fax 913/397.8282
GARMIN (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate, Romsey, SO51 9AQ, U.K.
Tel. 44/1794.519944
Fax 44/1794.519222
GARMIN (Asia) Corporation
No. 68, Jangshu 2nd Rd., Shijr, Taipei County, Taiwan
Tel. 886/02.2642.8999
Fax 886/02.2642.9099
All rights reserved. Except as expressly provided herein, no part of this manual may
be reproduced, copied, transmitted, disseminated, downloaded or stored in any
storage medium, for any purpose without prior written consent of GARMIN
Corporation. GARMIN Corporation hereby grants permission to download a single
copy of this manual onto a hard drive or other electronic storage medium to be
viewed for personal use, provided that such electronic or printed copy of this
manual contains the complete text of this copyright notice and provided further that
any unauthorized commercial distribution of this manual is strictly prohibited.
Information in this manual is subject to change without notice. GARMIN
Corporation reserves the right to change or improve its products and to make
changes in the content without obligation to notify any person or organization of
such changes. Visit the GARMIN website for current updates and supplemental
information concerning the use and operation of this and other GARMIN products.
Website address: www.garmin.com
GARMIN and GBR 23 are registered trademarks of GARMIN Corporation and may
not be used without the express permission of GARMIN Corporation.
May 2000 Part Number 190-00195-00 Rev. A Printed in Taiwan
GARMIN Corporation warrants this product to be free
from defects in materials and manufacture for one year
from the date of purchase. GARMIN will, at its sole option,
Limited Warranty
repair or replace any components that fail in normal use.
Such repairs or replacement will be made at no charge to
the customer for parts or labor. The customer is, however,
responsible for any transportation costs. This warranty does
not cover failures due to abuse, misuse, accident or
unauthorized alteration or repairs.
THE WARRANTIES AND REMEDIES CONTAINED
HEREIN ARE EXCLUSIVE AND IN LIEU OF ALL OTHER
WARRANTIES EXPRESS OR IMPLIED OR STATUTORY,
INCLUDING ANY LIABILITY ARISING UNDER ANY
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A
PARTICULAR PURPOSE, STATUTORY OR OTHERWISE.
THIS WARRANTY GIVES YOU SPECIFIC LEGAL RIGHTS,
WHICH MAY VARY FROM STATE TO STATE.
IN NO EVENT SHALL GARMIN BE LIABLE FOR ANY
INCIDENTAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES, WHETHER RESULTING FROM THE
USE, MISUSE, OR INABILITY TO USE THIS PRODUCT
OR FROM DEFECTS IN THE PRODUCT. SOME STATES
DO NOT ALLOW THE EXCLUSION OF INCIDENTAL OR
CONSEQUENTIAL DAMAGES, SO THE ABOVE
The GARMIN GBR 23 has no
user-serviceable parts. Should
you ever encounter a problem
with your receiver, please contact
your GARMIN dealer or the
GARMIN Customer Service
department (913-397-8200 or
800-800-1020) for repairs.
Any attempt to open the case to
change or modify the unit in any
way will void your warranty and
may result in permanent damage
to the equipment.
LIMITATIONS MAY NOT APPLY TO YOU.
To obtain warranty service, contact your GARMIN
dealer or call the GARMIN Customer Service department
(913-397-8200) for a returned merchandise tracking
number. The unit should be securely packaged with the
tracking number clearly marked on the outside of the
package and sent freight prepaid and insured to a GARMIN
warranty service station. A copy of the original sales receipt
is required as the proof of purchase for warranty repairs.
GARMIN retains the exclusive right to repair or replace the
unit or software or offer a full refund of the purchase price
at its sole discretion. SUCH REMEDY SHALL BE YOUR
SOLE AND EXCLUSIVE REMEDY FOR ANY BREACH OF
WARRANTY.
Introduction
I
1
Introduction
Cautions
All differential beacon receivers decode correction data
determined at the beacon transmitter site via a GPS
receiver(s). The GPS system is operated by the government of the United States which is solely responsible for
their accuracy and maintenance. The DGPS beacon
transmitters are operated by the U.S. Coast Guard (or
similar government agency in other countries) which is
responsible for their accuracy and maintenance. The
Global Positioning System and the Differential Global
Positioning System are under development and are subject
to changes which could affect accuracy and performance
of all DGPS equipment. Although a DGPS system is a
precision electronic NAVigation AID (NAVAID), any
NAVAID can be misused or misinterpreted, and therefore
become unsafe. Use the DGPS system at your own risk. To
reduce this risk, carefully review and understand all
aspects of this Owner’s Manual and carefully compare
indications from your GPS receiver to all available
navigation sources including the information from other
NAVAIDs, visual sightings, charts, etc. For safety, always
resolve any discrepancies before continuing navigation.
NOTE: This device complies with Part 15 of the FCC
rules. Operation of this device is subject to the following
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that may
cause undesired operation.
2
Introduction
Limited Warranty..............................................1
Cautions ..........................................................2
Table of Contents ............................................3
Product Registration ........................................4
Overview
Capabilities & Package Contents......................5
Installation
Mounting the GBR 23 .................................6-7
Connecting GBR 23 and GPS ....................8-10
Operation
Using the GBR 23 ....................................11-12
Introduction
Table of
Contents
Reference
DGPS: How It Works ...............................13-14
Sources of Error .......................................15-16
Troubleshooting Chart .............................17-18
GBR 23 Specifications ..................................19
Index .............................................................20
3
Introduction
Product
Registration
H
Why should you register your
GARMIN GPS unit:
• Notification of Product Updates
• Notification of New Products
• Lost or Stolen unit tracking
Customer Service Product Registration
Help us better support you by completing our on-line
registration today! Have the serial number of your GBR
23 handy and connect to our website (www.garmin.com).
Look for the Product Registration link on the Home page.
If you have previously registered a GARMIN product
purchase using a mail-in registration card, we invite you
to reregister using our NEW on-line system. Many
services provided by our new product registration system
are now being automated and reregistering your purchase
ensures you the best possible support from GARMIN.
Serial Number
Use this area to record the serial number (8-digit
number located on the bottom of the unit) in case it is
lost, stolen, or needs service. Be sure to keep your original
sales receipt in a safe place or attach a photocopy inside
the manual.
Serial Number:
*
*
The GARMIN GBR 23 has no user
I
serviceable parts. Should you ever encounter
a problem with your unit, please contact
your GARMIN dealer or GARMIN Customer
Service (913-397-8200 or 800-800-1020) for
repairs.
Repairs should only be made by an authorized
GARMIN service center. Unauthorized repairs or
modifications could void your warranty and authority to
operate this device under FCC Part 15 regulations. See
page 1 of this manual for further service details.
4
Capabilities
The GBR 23 offers a host of powerful capabilities to
enhance the performance and accuracy of your GPS
receiver:
• Performance— The single channel receiver has
high-sensitivity automatic and manual tuning
throughout the beacon broadcast band.
• Ease of Use— Once installed, operation is
controlled using your GARMIN GPS unit. The unit
may also be allowed to operate autonomously.
• Convenience— May be remotely mounted in an
out-of-the-way location. Receiver status information
is displayed directly on the GARMIN GPS unit.
• Low Power Consumption— Draws approximately
95 milliamps during normal operation.
• Accuracy— 1-5 (2DRMS) meters when used with a
GARMIN 12 channel GPS.
Package Contents
Your GARMIN GBR 23 package includes:
• GBR 23 unit
• 30’ Power/Data Cable
• Owner’s Manual & Reference Guide
• Beacon Reference Card
If any parts are missing or broken, please
contact your GARMIN dealer immediately.
Overview
Capabilities &
Package Contents
The GBR 23 may be used with a
variety of GARMIN GPS
receivers. The list below
identifies most, but not all,
compatible models. If your GPS
receiver is not listed, you may
check with your GARMIN
dealer or contact GARMIN
product support at 1-800-8001020 to verify compatibility.
•GPS II/II+/III/III+/III Pilot
•GPS eMap/eTrex/NavTalk
•GPS StreetPilot/ColorMap
•GPS 12/12XL/12CX/12Map
•GPS 38/40
•GPS 45/45XL/48
•GPS 50/75
•GPS 65
•GPS 89/90/92/95
•GPS 120/125
•GPSCOM 170/190
•GPSMAP 130/135/180/185
•GPSMAP 162/168
•GPSMAP 175/195/295
•GPSMAP 210/220/215/225
•GPSMAP 230/235
5
Installation
Mounting the
GBR 23
I
Note: As a general rule,
mount the receiver at least
three feet from all other
antennas and the vessel’s
electrical system components
(alternator/ignition system).
6
Mounting the Receiver
Please read through these instructions thoroughly before
attempting installation. Make sure you completely understand
these instructions before you begin. When in doubt, seek
professional assistance.
The following additional items are needed or optional
to complete the installation of your GBR 23:
• Antenna mount— Since antenna mounting
locations and methods vary, you will need to obtain
an antenna mount to install the GBR 23. The
receiver base fits a standard 1-inch, 14 threads per
inch mount. Check with your GARMIN dealer or a
marine supply company for this item.
• On/Off switch (optional)— Power to the
receiver may be controlled by an on/off switch, such
as an accessory switch on the control console.
Check with your GARMIN dealer or a marine/
electric supply company for this item.
• Fuse or cucuit breaker (optional)— It is
recommended to install a 2-6 Amp slow response fuse
or circuit breaker to protect the curcuit that the
GBR 23 will be attached to.
• GARMIN 60’ Power/Data Cable— For cable
installation lengths greater than 30’.(010-10284-00)
It is recommended that the system be temporarily
hooked up with the wiring and unit placement
approximating at the desired final installation. Then, check
operation with potential local interfering equipment turned
on and off. For example, other electronic equipment, fan
motors, engine ignition, alternators, generators, radars and
VHF radio transmissions can be sources of interference.
Position the receiver so that the clearest possible view
of the horizon in all directions is obtained. Avoid mounting
the antenna next to large areas of conductive material
(metal, aluminum, etc.) as this may cause poor signal
reception. The GBR 23 is supplied with a 30 feet power/
data cable. When routing the wiring to the GBR 23, avoid
routing the cable near the vessel’s alternator or ignition
system components or parallel to other power lines.
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