Automatic Vehicle Locator-750
  • Overview
  • Specification


VT-750 (GPS vehicle tracker) is a versatile and economical platform for mobile positioning applications. It integrates UniTraQ GPS module, Cinterion TC65i Quad-band 850/900/1800/1900GSM/GPRS communication engine and computer processing power all onto a single board.

It is enclosed in a solid casing for easy installation. VT-750 (GPS vehicle tracker) provides reliable Real Time vehicle GPS positions anytime anywhere in the world, providing the correct position and status of vehicles from remote locations onto computer displayed maps. Benefits such as increased fleet efficiency, improved public and driver safety, better emergency response time, enhanced fleet control, and good public relations are all realized through the proper implementation of VT-750 system.

The VT-750 system takes advantage of JAVA machine to transmit NMEA message to 24-hrs Control Center by Packet-Switch for monitoring through either GPRS or SMS massage system. Control center sets command by sending SMS for monitoring through GSM system or Internet access.



  • Supports Quad band 850/900/1800/1900 MHZ operation
  • JAVA platform
  • Java IMP_2.0 virtual machine for easy and fast application development
  • GPRS multi-slot class 12 and mobile station class B
  • Integrated TCP/IP stacks
  • SMS transfer via GSM/GPRS
  • Remote control via SMS
  • Real-time GPS tracking
  • Real-time vehicle status monitoring
  • Dual data communication capability through GPRS and SMS
  • Supports speaker and microphone interface
  • 6 Bi-directional digital IO ports with voltage protected up to 40V
  • RS232 interface with DB9 connector  for Java program updating
  • Power supply and low battery detection acknowledge
  • 4 LED indicators for power, battery charger in progress, GSM/GPRS and GPS status
  • Built-in 1100mAh Recharge battery





Platform Java, J2ME profile IMP 2.0, 400KB RAM, 1.7MB flash
Power Supply 9~60 VDC
Power Consumption Power down 50uA
Sleep mode 3mA
GPRS class 12(Ave) 600mA
Firmware Upgrade RS232 interface or by the air interface
Function Setting RS232 interface or by the air interface
SIM card type 1.8V, 3V
LED Status Indicator Main Power/ Battery charge in progress/GPRS/GPS
Serial port interface RS232 interface with DB9 connector
Digital GPIO 6 Bi-directional digital IO ports with voltage protected up to 40V
Parameter specification
Frequency Quad band 850MHz/900MHz/1800MHz/ 1900MHz/
Output Power Class 4(2W) for EGSM 850 and 900 Class 1(1W) for GSM 1800 and 1900
GPRS Multi-slot Class 12
GPRS Mobil station Class B
Coding scheme CS1,CS2,CS3,CS4
PBCCH support Yes
USSD support Yes
DownLoad/UpLoad 85.6Kbps/21.4Kbps
Parameter specification
Transmission data NMEA 0183 Ver3.01
Receiver channels / Fixing method 65 channels
Acquisition sensitivity -137 dBm
Tracking sensitivity -158 dBm
Receiver frequency 1575.42MHz L1 C/A Code
Accuracy (1)Position (2)Datum   5m CEP WGS-84
Time To First Fix (1)Cold start  (2)Warm start  (3)Hot start   45Sec(typ) 35Sec(typ) 1Sec(typ)
Dynamic condition 4G (39.2m/sec2)
Interface UART
Operational Limits (1) Altitude (2) velocity   < 18,000m < 500m/s
Bit rate 4800 bps
Start bit 1 bit
Stop bit 1 bit
Data bit 8 bit
Parity None
Refresh time 1Sec