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Holux GM-83 manual

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Table of contents for the manual

  • Page 1

    GPS Engine Board Jan 02, 2002 Thailand contact: NavCom Research Co.,Ltd. 84/280 Asiahometown village,Bangkruay-Soinoi rd., Sainoi district, Ampher Sainoi,Nontabure 11150 Phone : 662-9237628-29 Fax : 662-92367629 Email : navcom@navcoms.com User’s Guide GM-83[...]

  • Page 2

    GM-83 User’s manual 2 TABLE OF CONTENTS 1. Introduction …………………………………………………………………………..…….. 3 1.1 Overview ………………………………………………………………………………. 3 1.2 Features …………………………………………………………………[...]

  • Page 3

    GM-83 User’s manual 3 1. Introduction 1.1 Overview The HOLUX GM-83 Engine Board is a total solution GPS receiver, designed based on SiRF star II Architecture. This positioning application meets stri ct needs such as car navigation, mapping, surveying, agriculture and so on. Only clear view of sky and certain power supply are necessary to the unit[...]

  • Page 4

    GM-83 User’s manual 4 1.3.4 Performance 1) Tracks up to 12 satellites. 2) Update rate: 1 second. 3) Acquisition time: Reacquisition 0.1 sec, averaged Hot start 8 sec. averaged Warm start 38 sec. averaged Cold start 45 sec. averaged 4) Position accuracy: Non DGPS (Differential GPS) Position 5~25 meter CEP Velocity 0.1 meters/second. Time 1 microse[...]

  • Page 5

    GM-83 User’s manual 5 2.2 Navigation After the acquisition process is complete, the GM-83 sends valid navigation information over output channels. These data include: 1) Latitude/longitude/altitude 2) Velocity 3) Date/time 4) Error estimates 5) Satellite and receiver status 2.3 Manufacturing Default: Datum: WGS84. Baud Rate: 4800. Output: GGA, GS[...]

  • Page 6

    GM-83 User’s manual 6 3. Hardware interface 3.1 Standard Model GM-83 GM-83-A W/ angle MCX connector and st andard hole to hole dimension J1 connector pin definition: Pin # Name Description 1 NC No function 2 VCC_5V Regulated 5.0V +/-5% input power, 160mA typical. 3 VBAT Battery backup input. 2.5V to 3.3V ,10uA typical. 4 NC No function[...]

  • Page 7

    GM-83 User’s manual 7 5 PBRESEN Manual reset input, ground to reset receiver. Leave floating for normal operation. The minimum plus width is 150 ms reset signal. 6 GPIO1 General purpose I/O pin 1 7 GPIO2 General purpose I/O pin 2 8 GPIO3 General purpose I/O pin 3 9 GPIO4 General purpose I/O pin 4 10 GND Ground 11 TXA Port A Serial Transmit Data G[...]

  • Page 8

    GM-83 User’s manual 8 4. Software Interface The GM-83 interface protocol is based on the Na tional Marine Electronics Association's NMEA 0183 ASC  interface specification, which is defined in NMEA 0183, Version 2.2 a nd the Radio Technical Commission for Maritime Services (RTCM Recommend ed Standards For Differential Navstar GPS Service, [...]

  • Page 9

    GM-83 User’s manual 9 Value Description 0 0 Fix not available or invalid 1 GPS SPS Mode, fix valid 2 Differential GPS, SPS Mode, fix valid 3 GPS PPS Mode, fix valid 4.1.2 Geographic Position with Latitude/Longitude(GLL) Table 4-4 contains the values for the following example: $GPGLL,3723.2475,N,12158.3416,W,161229.487,A*2C Table 4-4 GLL Data Form[...]

  • Page 10

    GM-83 User’s manual 10 33 D 4.1.4 GNSS Satellites in View (GSV) Table 4-8 contains the values for the following example: $GPGSV,2,1,07,07,79,048,42,02,51,062,43,26,36,256,42,27,27,138,42*71 $GPGSV,2,2,07,09,23,313,42,04,19,159,41,15,12,041,42*41 Table 4-8 GSV Data Format Name Example Units Description Message ID $GPGSV GSV protocol header Number [...]

  • Page 11

    GM-83 User’s manual 11 4.1.6 Course Over Ground and Ground Speed (VTG) Table 4-10 contains the values for the following example: $GPVTG,309.62,T, ,M,0.13,N,0.2,K*6E Table 4-10 VTG Data Format Name Example Units Description Message ID $GPVTG VTG protocol header Course 309.62 degrees Measured heading Reference T True Course degrees Measured heading[...]

  • Page 12

    GM-83 User’s manual 12 5. Earth Datums 5.1 Earth Datums The following is a list of the GM-83 earth datum index and the corresponding earth datum name: Item Datum Reference Ellipsoid Data name 1 Adindan - Ethiopia Clarke 1880 Data1.dat 2 Afgooye - Somalia Krassovsky Data2.dat 3 Alaska, Conus – North American 1983 GRS 1980 Data3.dat 4 Argentina S[...]

  • Page 13

    GM-83 User’s manual 13 42 Paraguay - South American 1969 South American 1969 Data42.dat 43 Philippines Clarke 1866 Data43.dat 44 Puerto Rico – Virgin Islands Clarke 1866 Data44.dat 45 Qatar national International Data45.dat 46 Qornoq – Greenland (SOUTH) International Data46.dat 47 Reunion – Mascarene Islands International Data47.dat 48 Regi[...]

  • Page 14

    GM-83 User’s manual 14 new software to the Receiver, and configure the Receiv er operation. See setup.pdf for more information on the use and operation of SiRFdemo software.[...]