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Summary of Contents for UniTraQ GT-3731R
- Page 1 USB GPS Receiver Series Model:GT-3731R Technical Manual UniTraQ International Corp. All right reserved, © 2006 9F-2, No 158, Sec. 2, Gongdao 5th Rd., Hsinchu City 30070, Taiwan, R.O.C. TEL：886-3-5710727 FAX：886-3-5751365 MADE IN TAIWAN UniTraQ International Corp. RoHS compliance 2007, Version 1.1...
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Page 2: Table Of Contents
Eastern Star 7 series GT-3731R GPS Receiver Contents 1. Features…………………………………………………………………………………………………………...1 2. Specifications…………………………………………………………………………..…….…. ……………….2 3. GPS status indicator…………………………………………………………………………………………3 4. Communication specification……………………………………………………………….…………………..3 5. Environment specification………………………………………………….…….…….…………………..4 6. P i n a s s i g n m e n t … … … … … … … … … … … … … … … … … … … … … … … … … . … … … … … … … . . 4 7. -
Page 3: Features
GPS Receiver GT-3731R Fast Acquisition Enhanced Sensitivity 44 Channels USB Interface GPS Receiver The GT-3731R is a compact all-in-one GPS receiver that continuously tracks all satellites in view and provides 1. FEATURES accurate satellite positioning data. 44 channels to acquire and track Its 44 parallel channels and 20000+ correlators provide fast satellite signal acquisition and short start-up time. -
Page 4: Specifications
Eastern Star 7 series GT-3731R GPS Receiver 2. SPECIFICATIONS Parameter Specification Receiver Type 44 channels Re-acquisition sensitivity -155dBm Tracking sensitivity -158dBm Cold start sensitivity -137dBm Receiver frequency 1575.42MHz Code C/A code Accuracy (1) Position 5m CEP (2) Velocity 0.1m/sec Startup Time hot start <... -
Page 5: Gps Status Indicator
3. GPS STATUS INDICATOR The GT-3731R provides GPS status indicator. LED On board shows fix or non-fix. In fix mode, the LED will light for 1second and turn off for 1second. In another mode, the pin will light for 2 seconds and turn off for 2 seconds. -
Page 6: Environment Specification
Eastern Star 7 series GT-3731R GPS Receiver 5. ENVIRONMENT SPECIFICATION Parameter Specification -20℃~+60℃ Operating Temperature -40℃~+80℃ Storage Humidity 5%~95% 6. PIN ASSIGNMENT Signal name Description Notes USB port power USB port data- USB port data+ USB ground UniTraQ International Corp. -
Page 7: Mechanic Dimension
Eastern Star 7 series GT-3731R GPS Receiver 7. MECHANIC DIMENSION Parameter Specification Physical dimension 49.8mm X 43.7mm X 17.6mm Weight 8. CUSTOMIZED PACKAGE Color box CD (including user manual, USB driver and GPS test program) UniTraQ International Corp. RoHS compliance... -
Page 8: Approved Nmea Message
Eastern Star 7 series GT-3731R GPS Receiver 9. APPROVED NMEA MESSAGE The serial interface protocol is based on the National Marine Electronics Association’s NMEA 0183 ASCII interface specification. This standard is fully define in “NMEA 0183, Version 3.01” The standard may be obtained from NMEA, www.nmea.org... -
Page 9: Gll - Latitude And Longitude, With Time Of Position Fix And Status
Eastern Star 7 series GT-3731R GPS Receiver 9.2 GLL - LATITUDE AND LONGITUDE, WITH TIME OF POSITION FIX AND STATUS Latitude and longitude of current position, time, and status. Structure: $GPGLL,ddmm.mmmm,a,dddmm.mmmm,a,hhmmss.sss,A,a*hh<CR><LF> 6 7 8 Example: $GPGLL,4250.5589,S,14718.5084,E,092204.999,A,A*2D<CR><LF> Field Name Example Description Latitude 4250.5589... -
Page 10: Gsa - Gps Dop And Active Satellites
Eastern Star 7 series GT-3731R GPS Receiver 9.3 GSA - GPS DOP AND ACTIVE SATELLITES GPS receiver operating mode, satellites used in the navigation solution reported by the GGA or GNS sentence and DOP values. Structure: $GPGSA,A,x,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,xx,x.x,x.x,x.x*hh<CR><LF> 1 2 3 3 3 3 3 3 3 3 3 3 3 3 4 5 6 Example: $GPGSA,A,3,01,20,19,13,,,,,,,,,40.4,24.4,32.2*0A<CR><LF>... -
Page 11: Gsv - Gps Satellite In View
Eastern Star 7 series GT-3731R GPS Receiver 9.4 GSV - GPS SATELLITE IN VIEW Number of satellites in view, PRN number, elevation angle, azimuth angle, and C/No. Four satellites details are transmitted per message. Additional satellite in view information is send in subsequent GSV messages. -
Page 12: Rmc - Recommended Minimum Specific Gps/Transit Data
Eastern Star 7 series GT-3731R GPS Receiver 9.5 RMC - RECOMMANDED MINIMUM SPECIFIC GPS/TRANSIT DATA Time, date, position, course and speed data provided by a GNSS navigation receiver. Structure: $GPRMC,hhmmss.sss,A,dddmm.mmmm,a,dddmm.mmmm,a,x.x,x.x,ddmmyy,x.x,a,a*hh<CR><LF> 6 7 8 10 1112 13 Example: $GPRMC,092204.999,A,4250.5589,S,14718.5084,E,0.00,89.68,211200,,A*25<CR><LF> Field Name... -
Page 13: Vtg - Course Over Ground And Ground Speed
Eastern Star 7 series GT-3731R GPS Receiver 9.6 VTG - COURSE OVER GROUND AND GROUND SPEED The Actual course and speed relative to the ground. Structure: GPVTG,x.x,T,x.x,M,x.x,N,x.x,K,a*hh<CR><LF> Example: $GPVTG,89.68,T,,M,0.00,N,0.0,K,A*5F<CR><LF> Field Name Example Description Course 89.68 True course over ground in degrees (000.0 ~ 359.9) Course Magnetic course over ground in degrees (000.0 ~ 359.9) - Page 14 UniTraQ assumes no responsibility for errors or omissions in these materials, nor for its use. UniTraQ reserves the right to change specification at any time without notice. These materials are provides “as is” without warranty of any kind, either expressed or implied, relating to sale and/or use of UniTraQ products including liability or warranties relating to fitness for a particular purpose, consequential or incidental damages, merchantability, or infringement of any patent, copyright or other intellectual property right.
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