Garmin DGPS 53 User Manual

owner’s
manual
and
reference
guide
DGPS 53
integrated GPS/DGPS 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 DGPS 53 are registered trademarks of GARMIN Corporation and may not be used without the express permission of GARMIN Corporation.
September 2000 Part Number 190-00194-00 Rev. A Printed in Taiwan
GARMIN Corporation warrants this product to be free from defects in materials and workmanship for one year from the date of purchase. GARMIN will, at its sole option, 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 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
Limited Warranty
I
The GARMIN DGPS 53 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.
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 GPS/DGPS equipment. Although a GPS/DGPS system is a precision electronic NAVigation AID (NAVAID), any NAVAID can be misused or misinterpreted, and therefore become unsafe. Use the GPS/ 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 display 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 DGPS 53................................6-7
Connecting DGPS 53....................................8-9
Operation
Using the DGPS 53 .......................................10
NMEA Sentences......................................11-18
One-Pulse-Per-Second Output.......................18
Reference
GPS: How It Works .......................................19
DGPS: How It Works ....................................20
Sources of Error .......................................21-22
Troubleshooting Chart ..................................23
DGPS 53 Specifications .................................24
Appendix A: Earth Datums.......................25-27
Index .............................................................28
Introduction
Table of
Contents
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 DGPS 53 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 DGPS 53 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 DGPS 53 offers a host of powerful capabilities for
enhanced performance and accuracy:
• Performance— 12-channel GPS receiver tracks and uses up to 12 satellites for fast, accurate positioning. Single channel DGPS receiver has high-sensitivity automatic and manual tuning throughout the beacon broadcast band.
• Ease of Use— Once installed, unit will automati­cally transmit navigation data.
• Convenience— May be remotely mounted in an out-of-the-way location. Receiver status information is displayed directly on the chartplotter or PC.
• Low Power Consumption— Draws approximately 170 milliamps during normal operation.
• Accuracy— 1-5 (2DRMS) meters (typical).
Package Contents
Your GARMIN DGPS 53 package includes:
• DGPS 53 unit
• 30’ Power/Data Cable
• Owner’s Manual & Reference Guide
• Beacon Reference Card
Overview
Capabilities &
Package Contents
If any parts are missing or damaged, please
contact your GARMIN dealer immediately.
5
Installation
Mounting the
DGPS 53
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).
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 DGPS 53:
• Antenna mount— Since antenna mounting locations and methods vary, you will need to obtain an antenna mount to install the DGPS 53. The receiver base fits a standard 1-inch, 14 threads-per­inch mount. Check with your GARMIN dealer or a marine supply retailer 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 retailer for this item.
• GARMIN 60’ Power/Data Cable— for cable installation lengths greater than 30’. Part number 010-10284-00
It is recommended that the system be temporarily hooked up with the wiring and the unit placed at the desired installation location. Then, check operation with potential 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 sky and 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 DGPS 53 is supplied with a 30 feet power/data cable. When routing the wiring to the DGPS 53, avoid routing the cable near the vessel’s alternator or ignition system components or parallel to other power lines.
6
Three common sources of interference for DGPS
units are:
ABOVE- OK
Radar
BELOW- OK
Installation
Mounting the
Receiver
3'
Radar
EMI
EMI (Electromagnetic Interference) from engine components
If a problem is found, try altering the location of the
VHF Radio Antenna
When routing the power/data cable, try to avoid:
• Sharp edges which may cut the cable
• Routing the cable parallel to other power lines
• Excessively twisting, straining or bending the cable
unit or wiring. Often moving the antenna a few feet away from the source of interference will solve the problem. When a suitable configuration is found, a permanent installation should be made. Select the mounting location according to your preferences. Keep in mind that from this mounting location cables will be routed to the antenna and to the GPS unit.
1. Once a suitable mounting location has been determined and tested, secure the antenna mount at the desired mounting location.
2. Make sure the DGPS 53 is aligned properly to avoid thread damage. Thread the DGPS 53 onto the antenna mount and hand tighten clockwise until snug (Fig. 1). Do not overtighten.
3. Align the notches on the power/data cable and DGPS 53 connector and push the connector in until it seats. Turn the locking ring clockwise until the power/data cable is firmly locked into position.
4. Route the power/data cable from the DGPS 53 to the GPS unit. Excess cable may be shortened or coiled together and secured in an inconspicuous location. If additional cable is needed you may use GARMIN’s optional 60’ cable (010-10284-00) or similar 24 AWG shielded wiring. The entire length of the power/data cable should not exceed 150’ (45.7m).
I
Antenna Mount
Figure 1: Mounting
Power/Data Cable & Connectors
the DGPS 53
7
Installation
Connecting the
DGPS 53
F
If the DGPS 53 is being connected to a PC, a DB9 or DB25 serial connector (normally female) will be needed. Check with a PC or electronics supplier for this item.
1
4
2
3
5
6789
DB9 Female Serial Connector
13
DB25 Female Serial Connector
7
25
1
2
3
14
I
Some non-GARMIN devices may have a separate data line labeled “RETURN”, “DATA GROUND” or “DATA -”. If one of these lines exist, connect the BLACK wire from the power/data cable to it.
8
Connecting the DGPS 53
The final step in installing the DGPS 53 is to connect the receiver’s DATA IN, DATA OUT, REMOTE ON/OFF and GROUND (Return) lines to your chartplotter or PC. The DGPS 53 is designed to transmit/receive data at 4800-19200 baud (bits per second), which is suitable for use with most devices and PCs.
For reliable communication, it is essential that the DGPS 53 and the receiving device share the same ground. This ground connection acts as the (current) Return line. It is recommended to wire the unit to it’s own circuit to avoid interference from other electronics.
1. You may reference Figures 3 or 4 on the following page for the wiring: Connect the BLUE (Data Out) wire from the DGPS 53’s power/data cable to the DATA INPUT line of the chartplotter or to pin 2 on the DB9 (pin 3 on DB25).
2. Connect the BROWN (Data In) wire to the DATA OUTPUT line of the chartplotter or pin 3 on the DB9 (pin 2 on DB25).
3. Connect the BLACK (-) wire to the GROUND wire of the chartplotter or pin 5 on the DB9 (pin 7 on DB25). If the BLACK wire is already connected to the same ground terminal as the GPS unit, no additional connection is required (unless a separate RETURN line is provided by the GPS unit).
4. Connect the RED (+) wire from the power/data cable to a 8-35 VDC power source.
5. If a remote power switch is being installed, reference Figure 5 for wiring the switch. This will allow the DGPS 53 to remain connected to a power source, but manually powered on and off. Otherwise, if the receiver is being wired to a circuit which is already switched, (with the chartplotter for example) connect the WHITE wire to the same place as the BLACK wire. When the BLACK and WHITE wires are combined, the DGPS 53 will turn on/off when power is applied/removed to the RED (+) and BLACK (-) wires.
6. If one-pulse-per-second (PPS) output is being used, connect the YELLOW (+) and BLACK (-) wires to your desired device inputs. See page 18 for more information on PPS.
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