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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
