Garmin GPS 18 Technical Specifications

Also see for GPS 18 5Hz: Reference guide Features Setup guide

Contents

Garmin GPS 18 Technical Specifications Manual pdf 4 page image

GPS 18 Technical Specifications (190-00307-00) Rev. DPage iiTABLE OF CONTENTS1 Introduction..................................................................................................................11.1 Cautions ............................................................................................................................................11.2 Limited Warranty ..............................................................................................................................21.3 Features .............................................................................................................................................31.4 GPS 18 Series....................................................................................................................................41.4.1 GPS 18 USB...................................................................................................................................... 41.4.2 GPS 18 PC ........................................................................................................................................ 41.4.3 GPS 18 LVC, GPS 18 LVC-5m, and GPS 18-5Hz ........................................................................... 41.5 Technical Specifications ...................................................................................................................51.5.1 Physical Characteristics..................................................................................................................... 51.5.1.1 Size.................................................................................................................................... 51.5.1.2 Weight ............................................................................................................................... 51.5.1.3 Color.................................................................................................................................. 51.5.1.4 Case Material..................................................................................................................... 51.5.1.5 Cable Length ..................................................................................................................... 51.5.2 Electrical Characteristics................................................................................................................... 51.5.2.1 Input Voltage..................................................................................................................... 51.5.2.2 Input Current ..................................................................................................................... 51.5.2.3 CMOS Serial Output Levels.............................................................................................. 51.5.2.4 GPS Receiver Sensitivity .................................................................................................. 61.5.3 Environmental Characteristics........................................................................................................... 61.5.4 GPS Performance .............................................................................................................................. 61.5.4.1 Receiver............................................................................................................................. 61.5.4.2 Acquisition Times ............................................................................................................. 61.5.4.3 Update Rate ....................................................................................................................... 61.5.4.4 Accuracy ........................................................................................................................... 61.5.5 Interfaces........................................................................................................................................... 71.5.5.1 GPS 18 Electrical Characteristics ...................................................................................... 71.5.5.2 Garmin Interface and Garmin USB Protocol..................................................................... 71.5.5.3 GPS 18 PC, GPS 18 LVC, & GPS 18-5Hz Protocols........................................................ 71.5.5.4 Measurement Pulse Output (GPS 18 LVC & GPS 18-5Hz only)...................................... 72 GPS 18 LVC & GPS 18-5Hz Wiring and Pinouts ....................................................82.1 GPS 18 LVC & GPS 18-5Hz Pinout.................................................................................................82.2 GPS 18 LVC & GPS 18-5Hz Wiring Diagrams ...............................................................................83 Mechanical Characteristics & Mounting.................................................................104 GPS 18 PC, GPS 18 LVC, & GPS 18-5Hz Software Interface ..............................124.1 Received NMEA 0183 Sentences ...................................................................................................124.1.1 Almanac Information (ALM) ...........................................................................................................124.1.2 Sensor Initialization Information (PGRMI)......................................................................................134.1.3 Sensor Configuration Information (PGRMC) ..................................................................................134.1.4 Additional Sensor Configuration Information (PGRMC1) ..............................................................144.1.5 Output Sentence Enable/Disable (PGRMO).....................................................................................144.2 Transmitted NMEA 0183 Sentences...............................................................................................154.2.1 Sentence Transmission Rate.............................................................................................................154.2.2 Transmitted Time .............................................................................................................................164.2.3 Global Positioning System Almanac Data (ALM) ...........................................................................164.2.4 Global Positioning System Fix Data (GGA) ....................................................................................174.2.5 GPS DOP and Active Satellites (GSA) ............................................................................................174.2.6 GPS Satellites in View (GSV)..........................................................................................................174.2.7 Recommended Minimum Specific GPS/TRANSIT Data (RMC) ....................................................184.2.8 Track Made Good and Ground Speed (VTG) ..................................................................................18