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190-00266-01 GPS 15H & 15L Technical Specifications Rev. D
Page iv
4.2.12 Map Datum (PGRMM)........................................................................................................................18
4.2.13 Sensor Status Information (PGRMT)...................................................................................................19
4.2.14 3D velocity Information (PGRMV) .....................................................................................................19
4.2.15 DGPS Beacon Information (PGRMB) .................................................................................................19
4.3 Baud Rate Selection........................................................................................................................20
4.4 One-Pulse-Per-Second (PPS) Output..............................................................................................20
4.5 Received RTCM Data.....................................................................................................................20
Appendix A: Earth Datums ............................................................................................21
Appendix B: Binary Phase Output Format...................................................................24
Satellite Data Record .......................................................................................................................................24
Position Record................................................................................................................................................26
Receiver Measurement Record ........................................................................................................................26
Sample C Code ................................................................................................................................................27
Appendix C: Changing the Baud Rate in Garmin Mode.............................................28
Appendix D: 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 E: Declaration of Conformity........................................................................34
LIST OF TABLES AND FIGURES
Table 1: Gain vs. SNR for Given Noise Figure.............................................................................................. 7
Table 2: GPS 15H & 15L Wire Descriptions................................................................................................. 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 15H-F & 15L-F Dimensions................................................................................................. 10
Figure 5: GPS 15H-W & 15L-W Outline Drawing...................................................................................... 10
Table 3: NMEA 0183 Output Sentence Order and Size...............................................................................15
Table 4: Characters per Second for Available Baud Rates........................................................................... 15