1. Good decisions require good information. For GIS users, the quality of information coming out of their systems depends on the accuracy of the data going in. Confident decision making leaves no room for doubt over data accuracy. The last thing GIS users need to worry about is whether the data...
  2. Selecting GPS capabilities you will purchase and use will be based on computer processing capabilities of the unit. This is combined with the antenna it will use. All GPS units access data from the same satellites in orbit around the earth.TheGlobal Positioning System (GPS), originallyNavstar...