Instruction/ maintenance manual of the product GPS 18X Garmin
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GPS 18x TECHNICAL SPECIFICATIONS Garmin International, Inc. 1200 E. 151 st Street Olathe, KS 66062 USA 190-00879-08, Rev ision B January 2008.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page i © 2008 Garmin Ltd. or its subsidiaries Garmin International, Inc. 1200 East 151 st Street, Olathe, Kansas 66062, U.S.A. Tel. 913/397.8200 or 800/800.1020 Fax 913/397. 8282 Garmin (Eur ope) Ltd.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page ii TABLE OF CONTENTS 1 Introduction .............................................................................................................................. 1 1.1 Cautions..............
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page iii 4.2.8 Track Made Good and Ground Speed (VTG) ......................................................................................... ........ 18 4.2.9 Geographic Pos ition (G L L) .....
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 1 1 INTRODUCTION 1.1 CAUTIONS CAUTION The GPS system is operated by the governm ent of the United States, which is s o lely responsible for its accuracy an d maintenance.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 2 1.2 LIMITED WARRANTY This Garmi n product is warra nted to be free from defects in materi als or workm anship for one year from the date of purchase. Within this peri od, Garmin will at its sole option, repair or replace any c omponents that fail in norm al use.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 3 1.3 OVERVIEW The GPS 18x series products i nclude an embedded receive r and an antenna. Based on the proven technology found in other Garm.
1.5 GPS 18x SERIES There are seve ral different versions of GPS 18x avail able. Refer below for a li st of the three m ajor divi sions of the GPS 18x Series. 1.5.1 GPS 18x USB The GPS 18x USB inte rfaces to a computer with an available USB port. Drivers are available f or use on Wind ows computers .
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 5 1.6 TECHNICAL SPECIFICATIONS Specifications are subject to change without notice. 1.6.1 Physical Characteristics 1.6.1.1 Size 61 mm (2.4 inches) in diam eter and 19.5 mm (0.7 7 inches) i n height 1.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 6 1.6.2.5 Environmental Characteristics • Operating Tem perature: -30°C to + 80°C (-22°F to +176°F ) • Storage Tempe rature: -40°C to +90 °C (-40°F to + 194°F) 1.6.3 GPS Performance 1.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 7 1.6.4.3 GPS 18x PC, GPS 18x LVC, & GPS 18x-5Hz Protocols • NMEA 0183 Version 2.0 or NMEA 0183 Version 2.30 (Version 2.0 is factory default, progra mmable by data field 7 of the PGRMC1 sentence desc ribed in section 4.
2 GPSX 18x LVC & GPS 18x -5Hz WIRING AND PINOUTS The GPS 18x LVC/18x-5Hz interfaces to a serial port. The unit accepts TI A-232-F (RS-232) level inputs and transmits voltage levels from ground to th e input voltage, TIA- 232 -F (RS-232) polar ity.
Figure 2. PDA Serial Port Interconnection Figure 3. Basic NMEA Devi ce Interconnection 190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 9.
3 MECHANICAL CHARACTERISTICS & MOUNTING The central threaded recess a ccepts a metric M3 threaded bolt. T he recess is approximately 4 mm deep (4.32 +/- 0.08 mm ). The following drawings sh ow exampl e geometries for m ounting hardware in case y ou wish to design your own c ustom m ount.
UNITS: MILLIMETERS Figure 5. GPS 18x Suction Cup Mount Center Hole Dimensions UNITS: MILLIMETERS Figure 6. GPS 18x Flush Mount Dimensions Figure 7. GPS 18x Flush Mo unt Center Hole Dimensions 190-00879-08 GPS 18x Technical Specificatio n s Rev.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 12 4 GPS 18x PC, GPS 18x LVC, & G PS 18x-5Hz SOFTWARE INTERFACE The interface p rotocol desig n of the GPS 18x PC, LVC, and GPS 18 x-5Hz product s is based on the National M arine Electronics Association’s NMEA 0183 ASCII interface specification.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 13 4.1.2 Sensor Initialization Information (PGRMI) The $PGRMI sentence provides information used to initialize th e GPS sensor’s set position and time used for satellite acquisition.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 14 4.1.4 Additional Sensor Configuration Information (PGRMC1) The $PGRMC 1 sentence provi des additiona l informat ion used to con figure the GPS sensor operati on. Confi guration parameters are stored in non-volatile memory and retained between power cycles.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 15 4.2 TRANSMITTED NMEA 0183 SENTENCES The subseque nt paragrap hs define the se ntences that can be transmitt ed by the GPS 18x PC and LVC. 4.2.1 Sentence Transmission Rate Sentences are transmitted with respect to the user selected baud rate.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 16 4.2.2 Transmitted Time The GPS senso r outputs Co ordinated Univ ersal Time (UTC ) date and ti me of day i n the transmi tted sentences. Before the initial position fix, the on-board clock provides the date and time of day.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 17 4.2.4 Global Positioning System Fix Data (GGA) $GPGGA,<1>, <2>,<3>,<4>, <5>,<6>,<7>,< 8> .
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 18 4.2.7 Recommended Minimum Specific GPS/TRANSIT Data (RMC) $GPRMC,<1>,< 2>,<3>,<4>,<5>,< 6>,<7>,.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 19 4.2.11 GPS Fix Data Sentence (PGRMF) $PGRMF,< 1>,<2>,<3>,<4>, <5>,< 6>,<7>, <8>,<9>.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 20 4.2.15 DGPS Beacon Information (PGRMB) Note: The GPS 18x products do not support PGRMB at this time.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 21 APPENDIX A: EARTH DATUM LIST The following is a list of the Garmin GPS 18x Earth datum indices and the correspond ing earth datum name (i.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 22 44 KERTAU 1948–West Malaysia, Sing apore 45 L.C. 5 ASTRO–Cayman Brac Island 46 LIBERIA 1964–Lib eria 47 LUZON–Mi ndanao Island 48.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 23 83 PROVISIONAL SOUTH AMERICAN 1956– Bo livia, Chile, Colombia, Ecuador, Guyan a, Peru, Venezuela 84 SOUTH AMERICAN 1969–Argentina, Bo.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 24 APPENDIX B: GARMIN BI NARY OUTPUT FORMAT In Binary Output mode, GPS 18x series products will transmit packets once per second . The record contains primarily post-process in formation such as position and ve locity information.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 25 Satellite Data Record The satellite data has a record ID of 0x72 with 84 (0x54) d ata bytes.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 26 Position Record The Position Record has a record iden tifier of typedef struct { float alt; float epe; float eph; float epv; int fix; dou.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 27 DLE and ETX bytes: Sample C code to receive t he two records shoul d filter DLE and ETX bytes as descri bed below: typedef enum { DAT, DL.
190-00879-08 GPS 18x Technical Specificatio n s Rev. B Page 28 APPENDIX C: CHANGING THE BAUD RATE IN GARMIN MODE In certain cases, you ma y need to chan ge the de fault baud rate of your Garm in GPS receiver while in Garm in mode. Follow these steps to temporarily change the baud rate.
APPENDIX D: GPS 18x PC/ LVC/18x-5H Z & WINDOWS SERIAL MOUSE ISSUE Problem: It is possible for Windows to incorrectly interpret the NMEA 0183 outpu t of the GPS 18x PC as the output o f a Microsoft Seri al BallPoi nt Mouse. Whe n that happe ns, Windows loads drivers for the Seri al BallPoint Mouse.
4. Select the serial port to which the GPS 18x is connected. Select Auto to have th e program automatically determin e th e baud rate, or select Manual to manually select the baud rate of the GPS 18x. Click OK when done. 5. Click the Connect icon , or select Comm > Connect to connect to the GPS 18x.
APPENDIX E: SENSOR CONF IGURATION SOFTWARE SNSRCFG confi gures the GPS sensors based on user-selected pa rameters. Some application features include the ability to download GPS sensor con figuration, maintain di fferent configurations in f iles, and perform GPS sensor configuratio ns quickl y with the use of one f unction key.
File Menu The File Menu allows you t o open, sa ve, and pri nt sensor configurations. The items in the File Menu work like most Windows-ba sed program s. Comm Menu The Comm (Communicat ion) Menu allo ws you to set t he port num ber, baud rate, and t hen connect a nd disconnect from the sens or.
Get Configurati on From GPS (F8): Retrieves the c urrent programm ing from the sensor. The p rogramming is then displayed in the Main Interface Window. Send Configurati on To GPS (F 9): Sends the changes you have m ade to the pr ogramming t o the sensor.
An important point after buying a device Garmin GPS 18X (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Garmin GPS 18X yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Garmin GPS 18X - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Garmin GPS 18X you will learn all the available features of the product, as well as information on its operation. The information that you get Garmin GPS 18X will certainly help you make a decision on the purchase.
If you already are a holder of Garmin GPS 18X, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Garmin GPS 18X.
However, one of the most important roles played by the user manual is to help in solving problems with Garmin GPS 18X. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Garmin GPS 18X along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
