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190-00228-20 GPS 16/17 Technical Specifications Rev. C
Page iv
4.2.3 Global Positioning System Almanac Data (ALM) ..............................................................17
4.2.4 Global Positioning System Fix Data (GGA)........................................................................17
4.2.5 GPS DOP and Active Satellites (GSA) ...............................................................................18
4.2.6 GPS Satellites in View (GSV).............................................................................................18
4.2.7 Recommended Minimum Specific GPS/TRANSIT Data (RMC) .......................................18
4.2.8 Track Made Good and Ground Speed (VTG)......................................................................18
4.2.9 Geographic Position (GLL) .................................................................................................19
4.2.10 Estimated Error Information (PGRME)...............................................................................19
4.2.11 GPS Fix Data Sentence (PGRMF).......................................................................................19
4.2.12 Map Datum (PGRMM)........................................................................................................19
4.2.13 Sensor Status Information (PGRMT) ..................................................................................20
4.2.14 3D Velocity Information (PGRMV)....................................................................................20
4.2.15 DGPS Beacon Information (PGRMB).................................................................................20
4.3 Baud Rate Selection........................................................................................................................21
4.4 One-Pulse-Per-Second (PPS) Output..............................................................................................21
4.5 Received RTCM Data.....................................................................................................................21
Appendix A: Earth Datums ..............................................................................22
Appendix B: Binary Phase Output Format .....................................................25
Satellite Data Record.......................................................................................................................25
Position Record...............................................................................................................................26
Receiver Measurement Record .......................................................................................................27
Sample C Code................................................................................................................................28
Appendix C: Ephemeris Data download (Programming Example)...............29
Synopsis..........................................................................................................................................29
Garmin Binary Format Review.......................................................................................................29
Ephemeris Download Procedure.....................................................................................................30
TX Packet: Ephemeris Data Request...................................................................................30
RX Packet: Acknowledgement............................................................................................30
RX Packet: Number of Data Packets to Expect...................................................................30
TX Packet: Acknowledgement............................................................................................30
RX Packet: Ephemeris Data ................................................................................................31
TX Packet: Download Complete .........................................................................................33
Appendix D: Sensor Configuration Software .................................................34
Downloading the Sensor Configuration Software...........................................................................34
Selecting a Model............................................................................................................................34
Connecting to the Sensor ................................................................................................................34
File Menu........................................................................................................................................35
Comm Menu ...................................................................................................................................35
Config Menu ...................................................................................................................................35
View Menu........................................................................................................................................0
Help Menu.........................................................................................................................................0
LIST OF TABLES AND FIGURES
GPS 16LVS & 16HVS................................................................................................................................... 4
GPS 16A......................................................................................................................................................... 4
GPS 17HVS & 17N........................................................................................................................................ 4
Table 1: GPS 16/17 Wire Pinout.................................................................................................................... 8
Figure 1: Computer Serial Port Interconnection............................................................................................. 9
Figure 2. PDA Serial Port Interconnection..................................................................................................... 9
Figure 3. Basic NMEA Device Interconnection............................................................................................. 9
Figure 4. GPS 16 Dimensions ...................................................................................................................... 10
Figure 5. GPS 16 Magnetic Mount Attachment........................................................................................... 10
Figure 6. GPS 17 Dimensions ...................................................................................................................... 11
Table 2: NMEA 0183 Output Sentence Order and Size...............................................................................16
Table 3: Characters per Second for Available Baud Rates........................................................................... 16