G-Mouse GPS User Manual GPS GGM308 PS-2 Connector Version 1.
INDEX 1 OVERVIEW ...........................................................................................................3 2 PRODUCT FEATURE .......................................................................................3 3 SPECIFICATION.................................................................................................4 4 HARDWARE .........................................................................................................6 4.1. 4.2. 5. SOFTWARE DATA............
1 OVERVIEW Congratulation on your purchase of Altina, which manufacture and provide various GPS applications. Altina’s GGM308 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.
Differential capability utilizes real-time RTCM corrections to provide 1-5 meter precise position accuracy. FLASH base program memory 3 SPECIFICATION Key Feture Frequency C/A Code Channels Sensitivity L1, 1575.42 MHz 1.023 MHz chip rate 12 -173 dBW Non DGPS (Differential GPS) Position Horizontal Velocity Time 5 to 25 meter CEP, without SA 0.1 meter/second, without SA 1 microsecond synchronized GPS time DGPS (Differential GPS) Position Horizontal 1 to 5 meter, typical Velocity 0.
Storage Input Voltage Power consumption -45oC to +100oC +4.75 ~ 5.5 VDC without accessories. <80mA at 4.5- 5.5V input Dimension Cable Length 2.32" x 1.85" x 0.82" (59.32mm x 51.28mm x 20.
4 HARDWARE 4.1.
4.2.
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 NMEA-0183 Output Messages NMEA Record Description GPGGA Global positioning system fixed data GPGLL Geographic position: latitude/longitude GPGSA GNSS DOP and active satellites GPGSV GNSS satellites in view GPRMC Recommended minimum specific GNSS data GPVTG Course over ground and ground speed 5.2.
Table 5-2 GGA Data Format-continue Name Example Units M Meters Units 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 Table 5-3 Description End of message termination Position Fix Indicator 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 5.3.
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 Message ID $GPGSA Units Description 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 Position Dilution of Precision HDOP 1.
5.5.
Table 5-9 RMC Data Format Name Message ID UTC Time Example Units $GPRMC RMC protocol header 161229.487 Status hhmmss.sss A Latitude A=data valid or V=data not valid 3723.2475 N/S Indicator Longitude ddmm.mmmm N N=north or S=south 12158.3416 E/W Indicator dddmm.mmmm W Speed Over Ground 0.13 Course Over Ground 309.
Units K Checksum *6E Kilometers per hour End of message termination 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.
item. D) Obtaining warranty service: Dated proof of original purchase will be required. Products or parts shipped by Customer to Altina must be sent postage-paid and packaged 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.