Garmin 15-F, 15 Technical Specification
GPS 15
TECHNICAL
SPECIFICATIONS
Garmin International, Inc.
1200 E. 151
Olathe, KS 66062 USA
190-00266-00, Revision B
April 2004
GPS 15 Technical Specifications (P/N 190-00266-00) Rev. B
st
Street
© Copyright 2004
Garmin Ltd. or its subsidiaries
All Rights Reserved
Except as expressly provided below, no part of this manual may be reproduced, copied, transmitted,
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prior written consent of Garmin. Garmin hereby grants permission to download a single copy of this
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provided further that any unauthorized commercial distribution of this manual or any revision hereto
is strictly prohibited.
Information in this document is subject to change without notice. Garmin 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 or improvements.
Unit 5, The Quadrangle, Abbey Park Industrial Estate
Web site address: www.garmin.com
RECORD OF REVISIONS
Garmin International, Inc.
1200 East 151
st
Street
Olathe, KS 66062 U.S.A.
Telephone: 913/397.8200
FAX: 913/397.8282
Garmin (Europe) Ltd.
Romsey SO51 9DL, U.K.
Telephone: 44/1794.519944
FAX: 44/1794.519222
Garmin Corporation
No. 68, Jangshu 2
nd
Road
Shijr, Taipei County, Taiwan
Telephone: 886/2.2642.9199
FAX: 886/2.2642.9099
Revision Revision
Description ECO #
Date
A 8/16/02 Initial Release -B 4/28/04 Revised and Redrawn
GPS 15 Technical Specifications (P/N 190-00266-00) Rev. B
Page i
TABLE OF CONTENTS
1 Introduction..................................................................................................................1
1.1 Cautions ............................................................................................................................................1
1.2 Limited Warranty..............................................................................................................................2
1.3 Overview...........................................................................................................................................3
1.4 Features .............................................................................................................................................3
1.5 Technical Specifications ...................................................................................................................4
1.5.1 Physical Characteristics.......................................................................................................................... 4
1.5.1.1 Size..................................................................................................................................................... 4
1.5.1.2 Weight................................................................................................................................................ 4
1.5.1.3 Available Connector Options............................................................................................................. 4
1.5.1.4 Antenna Connector............................................................................................................................. 4
1.5.2 Electrical Characteristics ........................................................................................................................ 4
1.5.2.1 Input Voltage ..................................................................................................................................... 4
1.5.2.2 Input Current...................................................................................................................................... 4
1.5.2.3 CMOS Serial Output Levels .............................................................................................................. 4
1.5.2.4 GPS Receiver Sensitivity ................................................................................................................... 4
1.5.3 Environmental Characteristics................................................................................................................ 4
1.5.4 GPS Performance ................................................................................................................................... 5
1.5.4.1 Receiver ............................................................................................................................................. 5
1.5.4.2 Acquisition Times.............................................................................................................................. 5
1.5.4.3 Update Rate........................................................................................................................................ 5
1.5.4.4 Accuracy ............................................................................................................................................ 5
1.5.5 Interfaces ................................................................................................................................................ 5
1.5.5.1 GPS 15 Electrical Characteristics....................................................................................................... 5
1.5.5.2 Port 1 Protocols.................................................................................................................................. 5
1.5.6 Antenna Specifications ........................................................................................................................... 6
2 GPS 15 Wire Descriptions and Wiring Diagrams ....................................................7
2.1 GPS 15 Wire Descriptions ................................................................................................................7
2.2 GPS 15 Wiring Diagrams..................................................................................................................8
3 Mechanical Characteristics & Mounting...................................................................9
4 GPS 15 Software Interface........................................................................................10
4.1 Received NMEA 0183 Sentences ...................................................................................................10
4.1.1 Sensor Initialization Information (PGRMI)...........................................................................................10
4.1.2 Sensor Configuration Information (PGRMC)........................................................................................11
4.1.3 Miscellaneous Commands (PGRMO) ...................................................................................................11
4.2 Transmitted NMEA 0183 Sentences...............................................................................................12
4.2.1 Sentence Transmission ..........................................................................................................................12
4.2.2 Transmitted Time ..................................................................................................................................13
4.2.3 Global Positioning System Fix Data (GGA)..........................................................................................13
4.2.4 GPS DOP and Active Satellites (GSA) .................................................................................................14
4.2.5 GPS Satellites in View (GSV)...............................................................................................................14
4.2.6 Recommended Minimum Specific GPS/TRANSIT Data (RMC)..........................................................14
4.2.7 Estimated Error Information (PGRME).................................................................................................14
4.2.8 Map Datum (PGRMM) .........................................................................................................................14
4.2.9 Sensor Status Information (PGRMT) ....................................................................................................15
GPS 15 Technical Specifications (P/N 190-00266-00) Rev. B
Page ii
Appendix A: Earth Datums ............................................................................................16
Appendix B: Sensor Configuration Software................................................................19
Downloading the Sensor Configuration Software............................................................................................19
Selecting a Model.............................................................................................................................................19
Connecting to the Sensor .................................................................................................................................19
File Menu.........................................................................................................................................................19
Comm Menu ....................................................................................................................................................20
Config Menu ....................................................................................................................................................20
View Menu ......................................................................................................................................................21
Help Menu .......................................................................................................................................................21
LIST OF TABLES AND FIGURES
Table 1: Gain vs. SNR for Given Noise Figure.............................................................................................. 6
Table 2: GPS 15 Wire Descriptions ............................................................................................................... 7
Figure 1: Computer Serial Port Interconnection............................................................................................. 8
Figure 2: PDA Serial Port Interconnection..................................................................................................... 8
Figure 3: Basic NMEA Device Interconnection............................................................................................. 8
Figure 4: GPS 15-F Dimensions..................................................................................................................... 9
Figure 5: GPS 15-W Outline Drawing ........................................................................................................... 9
Table 3: NMEA 0183 Output Sentence Order ............................................................................................. 12
GPS 15 Technical Specifications (P/N 190-00266-00) Rev. B
Page iii
1 INTRODUCTION
1.1 CAUTIONS
CAUTION
The GPS system is operated by the government of the United States, which is solely responsible for its
accuracy and maintenance. Although the GPS 15 is a precision electronic NAVigation AID (NAVAID),
any NAVAID can be misused or misinterpreted, and therefore become unsafe. Use these products at your
own risk. To reduce the risk, carefully review and understand all aspects of these Technical Specifications
before using the GPS 15. When in actual use, carefully compare indications from the GPS to all available
navigation sources including the information from other NAVAIDs, visual sightings, charts, etc. For safety,
always resolve any discrepancies before continuing navigation.
FCC
Compliance
The GPS 15 complies with Part 15 of the FCC interference limits for Class B digital devices FOR HOME
OR OFFICE USE. These limits are designed to provide reasonable protection against harmful interference
in a residential installation, and are more stringent than “outdoor” requirements.
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.
This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in
accordance with the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by turning the equipment off
and on, the user is encouraged to try to correct the interference by one or more of the following measures:
• Reorient or relocate the receiving antenna.
• Increase the separation between the equipment and receiver.
• Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
• Consult the dealer or an experienced radio/TV technician for help.
The GPS 15 does not contain any user-serviceable parts. Unauthorized repairs or modifications could result
in permanent damage to the equipment, and void your warranty and your authority to operate this device
under Part 15 regulations.
GPS 15 Technical Specifications (P/N 190-00266-00) Rev. B
Page 1
1.2 LIMITED WARRANTY
This Garmin product is warranted to be free from defects in materials or workmanship for one year from
the date of purchase. Within this period, 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, provided that the customer shall be responsible for any transportation cost. 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.
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.
To obtain warranty service, contact your local Garmin authorized dealer. Or call Garmin Customer Service
at one of the numbers shown below, for shipping instructions and an RMA tracking number. The unit
should be securely packed with the tracking number clearly written on the outside of the package. The unit
should then be sent, freight charges prepaid, to any Garmin warranty service station. A copy of the original
sales receipt is required as the proof of purchase for warranty repairs.
Garmin International, Inc.
1200 East 151
st
Street
Olathe, KS 66062 U.S.A.
Telephone: 913/397.8200
FAX: 913/397.8282
Garmin (Europe) Ltd.
Unit 5, The Quadrangle, Abbey Park Industrial Estate
Romsey SO51 9DL, U.K.
Telephone: 44/1794.519944
FAX: 44/1794.519222
GPS 15 Technical Specifications (P/N 190-00266-00) Rev. B
Page 2
1.3 OVERVIEW
The GPS 15 is part of Garmin’s latest generation of GPS sensor boards designed for a broad spectrum of
OEM (Original Equipment Manufacture) system applications. Based on the proven technology found in
other Garmin 12-channel GPS receivers, the GPS 15 tracks up to 12 satellites at a time while providing fast
time-to-first-fix, one-second navigation updates, and low power consumption. The far-reaching capabilities
of the GPS 15 meet the sensitivity requirements of land navigation as well as the dynamics requirements of
high-performance aircraft.
The GPS 15 design utilizes the latest technology and high-level circuit integration to achieve superior
performance while minimizing space and power requirements. All critical components of the system
including the RF/IF receiver hardware and the digital baseband are designed and manufactured by Garmin
to ensure the quality and capability of the GPS. The hardware capability combined with software
intelligence makes the GPS 15 easy to integrate and use.
Being a complete GPS receiver, the GPS 15 requires minimal additional components to be supplied by an
OEM or system integrator. A minimum system must provide the GPS with a source of power, an active
GPS antenna, and a clear view of the GPS satellites. The system may communicate with the GPS 15 via its
3.3V CMOS-level serial port. The GPS 15 stores data such as satellite orbital parameters, last-known
position, and date and time in battery backed up SRAM. End-user interfaces, such as keyboards and
displays, are the responsibility of the application designer.
1.4 FEATURES
• 12-channel GPS receiver tracks and uses up to 12 satellites for fast, accurate positioning and low
power consumption.
• Compact, rugged design ideal for applications with minimal space.
• May be remotely mounted in an out-of-the-way location.
• User initialization is not required. Once installed, unit automatically produces navigation data.
• On-board backup battery to maintain the non-volatile SRAM and real-time clock for up to 21 days.
• Provision for external power to maintain the charge on the backup battery.
• Configurable parameters include expected position, current time and date, preferred position fix type
(2D, 3D, or automatic), and velocity filter time constant (none, automatic, or your choice between 2
and 255 seconds).
GPS 15 Technical Specifications (P/N 190-00266-00) Rev. B
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