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     G-Mouse GPS User Manual 
G-Mouse GPS User Manual 
 
 
GPS GGM308U 
GPS GGM308U 
U US SB B  C Co on nn ne ec ct to or r  
  
Version 1.01 2004 / 09 / 16 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
i Copyright is reserved by Altina                                                                                                                                                                                                                                                       
                    
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                            INDEX    1 OVERVIEW ...........................................................................................................3  2 PRODUCT FEATURE .......................................................................................3  3 SPECIFICATION.................................................................................................4  4 HARDWARE .........................................................................................................6  4.1. DIMENSION .........
                    
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                            1 OVERVIEW  Congratulation on your purchase of Altina, which manufacture and provide various  GPS applications.  Altina’s GGM308U GPS Receiver provides you various applications  such as car navigation, marine navigation, mapping, surveying, security, agriculture and so  on.  It communicates with device (such as PocketPC or notebook) via compatible  dual-channel through RS-232 or TTL and saves satellite data by built–in backup memory.   Low power consumption technology enables GGM308U and you
                    
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                             FLASH base program memory    3 SPECIFICATION  Key Feture  Frequency  L1, 1575.42 MHz   C/A Code 1.023 MHz chip rate   Channels  12   Sensitivity -173 dBW   Non DGPS (Differential GPS)  Position Horizontal 5 to 25 meter CEP, without SA  Velocity 0.1 meter/second, without SA  Time 1 microsecond synchronized GPS time   DGPS (Differential GPS)  Position Horizontal 1 to 5 meter, typical  Velocity 0.05 meter/second, typical  EGNOS/WAAS  < 2.2 m, horizontal 95% of time  Datum WGS-84   Performance 
                    
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                            Dimension 2.32" x 1.85" x 0.82" (59.32mm x 51.28mm x 20.3mm)   Cable Length 60" (1500mm)                              5                                                                                                                                                                                                                                                                                                                                                                                         
                    
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                            4 HARDWARE  4.1. Dimension                  6                                                                                                                                                                                                                                                                                                                                                                                                                                                                   
                    
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                            4.2. Output terminal and definition    Output terminal:: USB connector   Pin definition:    Pin Signal Name  1 +5V  2 D +  3 D -  4 Ground    4.3.  USB Driver   System Requirement  IBM, Pentium or above and other compatible PC; 16 MB and above memory; Windows  98/Me/2000; VGA Graphic Adapter.      Installation  1. Copy entire  GGM308 USB_Driver  folder from CD to hard disk.  2. Connect GGM308 USB connector to computer. While the computer automatically  starts the installation program, please
                    
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                              Please note that the Virtual COM Port number might be different from every computer.  Before using navigating software, please confirm the COM Port number created by your  computer and provided by your navigation software. Otherwise, the navigating software  won’t receive the satellite signal, because of the un-match COM Port setting.    5. SOFTWARE DATA   NMEA 0183 V2.2 Protocol   Use RS-232 interface  4800 bps, 8 bit data, 1 stop bit and no parity.  5.1. NMEA Output Message    Table 5-1 
                    
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                            Position Fix Indicator 1  See Table 5-3  Satellites Used  07  Range 0 to 12  HDOP 1.0  Horizontal Dilution of Precision  MSL Altitude  9.0 Meters     Table 5-2  GGA Data Format-continue  Name Example Units Description  Units M Meters   Geoid Separation  Meters   Units M Meters   Age of Diff. Corr.   second Null fields when DGPS is not used  Diff. Ref. Station ID 0000    Checksum *18        End of message termination    Table 5-3  Position Fix Indicator  Value Description  0 0 Fix not
                    
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                            Checksum *2C        End of message termination    5.4. GNSS DOP and Active Satellites (GSA)  Table 5-4 contains the values for the following example.    $GPGSA,A,3,07,02,26,27,09,04,15, , , , , ,1.8,1.0,1.5*33     Table 5-5  GSA Data Format  Name Example Units Description  Message ID  $GPGSA  GSA protocol header  Mode 1 A  See Table 5-6  Mode 2 3  See Table 5-7  Satellite Used(1) 07  Sv on Channel 1  Satellite Used(1) 02  Sv on Channel 2  Satellite Used    Sv on Channel 12  PDOP 1.8 
                    
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                            5.5.   GNSS Satellites in View (GSV)  Table 5-8 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 5-8  GSV Data Format  Name Example Units Description  Message ID  $GPGSV  GSV protocol header  Number of 2  Range 1 to 3  Messages  Message Number 1  Range 1 to 3  Satellites in View 07  Range 1 to 12  Satellite ID 07  Channel 1 (Range 1 to 32)  Elevation 79 degre
                    
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                            UTC Time 161229.487  hhmmss.sss  Status A  A=data valid or V=data not valid  Latitude 3723.2475  ddmm.mmmm  N/S Indicator N  N=north or S=south  Longitude 12158.3416  dddmm.mmmm  E/W Indicator W  E=east or W=west  Speed Over 0.13 knots   Ground  Course Over 309.62 degreesTrue  Ground  Date 120598  ddmmyy  Magnetic  degrees E=east or W=west  Variation(1)  Checksum *10        End of message termination  NOTE: SiRF Technology Inc. does not support magnetic declination. All “course over 
                    
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                            NOTE: SiRF Technology Inc. does not support magnetic declination. All “course over ground” data are  geodetic WGS84 directions.    5.8. RTCM Received Data    The default communication parameters for DGPS Input are 4800 baud, 8 data bits, stop bit,  and no parity.  Position accuracy of less than 5 meters can be achieved with the  GGM308U by using Differential GPS (DGPS) real-time pseudo-range correction data in  RTCM SC-104 format, with message types 1, 2 or 9.  As using DGPS receiver with  d
                    
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                            appropriately for safe shipment. Altina is not responsible for Customer products received  without a warranty service authorization and may be rejected. Repaired or replacement  products become the property of Altina.     WARRANTIES EXCLUSIVE: THE FOREGOING WARRANTIES AND REMEDIES ARE  EXCLUSIVE AND IN LIEU OF ALL OTHER WARRANTIES, EXPRESS OF IMPLIED,  INCLUDING WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR  PURPOSE, CORRESPONDENCE WITH DESCRIPTION, AND NON-INFRINGEMENT,  ALL OF WH