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      GPS use gps navigation, you can receive satellite signals to determine the ground position in due course. GSM wireless network through modern technology, will determine the ground GPS location positioning passed to the professional platform and the platform mark the current location. Users can easily use this method to get target position. garmin gps car tracker application, has been applied to all aspects of life in the police investigation, GPS vehicle tracking device is an integral part of the decision on the police to put criminals GPS locator tool for action after Police monitoring center can easily see the criminals all the regions and lines of action to achieve the timely detection of crime dens, address security risks. gps systems to track the car, the platform is essential, now in China there are many such platforms, which built the latest electronic maps and satellite images of GOOGLE. Always the mark gps navigator car tracker to upload the location information, allowing users to clear the understanding of the target location.
      Continuous operation in the global GPS ground stations (about 200) formed the basis of IGS (International GPS Service), is the gps navigation system and integrated network for continuous operation service system example. It is free to provide GPS users around the world all kinds of information, such as GPS precise ephemeris, fast Ephemeris, ephemeris, IGS station coordinates and velocities, IGS stations to receive the GPS signal phase and pseudorange data, the Earth's rotation rate and so on. The information in geodesy and geodynamics to support the numerous scientific projects, including the ionosphere, meteorology, reference frame, precision time transfer, high-resolution projection of the Earth's rotation rate and its changes, crustal movement. Please visit TradeTang.com.