Customers often ask, your home car GPS positioning accuracy how much? Actual said GPS satellite positioning system in the United States. Positioning accuracy of two armored division of civilian and military management with GPS positioning, influenced by the American Civil open accuracy within 5-100 meters. While the impact of gps positioning accuracy There are many factors, but the accuracy is open to other people can not be changed. Is the biggest determinant of positioning accuracy. Whose are the same. Selling GPS products for positioning said his accuracy in 3 to 5 meters on the market is a lie, do not be fooled through China differential GPS positioning technology after the United States have at least 10 meters away from the GPS positioning error, so the 15 m The exact value is within the GPS positioning. This is only theoretical positioning accuracy. The same theory as car fuel consumption is a theoretical ideal. Also gps positioning accuracy in the use of which is a coordinate point on the map to locate the coordinates of another point. Coordinate reference point may be a gas station, it could be a plot, different frame of reference, giving the feeling of different errors. Factors Affecting gps positioning accuracy are: 1, the atmosphere (ionosphere and troposphere delay of GPS signals) 2, multipath (reflected to the receiver through the other surface of the antenna in the GPS signal) 3, the number of GPS satellites currently visible 4 , the currently visible GPS satellites geometric distribution 5, GPS satellite clock error 6, GPS satellites orbit differential, human disturbance, such as SA policy, microwave transmitting devices, 8, GPS positioning mold section 9, + gps positioning is not any at any time GPS can locate a local search star on many factors, based on the principle of the GPS system, GPS receiver star search ability strongly depends on the sky satellite signal, simple language that relies heavily on open sky environment, GPS can be directly exposed to the greater range of high-altitude environment, the satellite signal receiver to search the more stable bank armored car GPS locator, we can more accurately locate long standby GPS positioning Which is better? Double Electronic Technology GPS positioning company reminded owners of traditional GPS locator has two major drawbacks: 1. You have been known to the industry, easily removed, while high-risk vehicles installed two or more likely to cause loss of battery power. 2, broken wire electrical connection trouble, it is possible to bring the car circuit is bad, short armored car GPS positioning systems, computer board failure. GPS locator that loses effect, it is difficult to retrieve the car. Compared with traditional GPS locator GPS positioning technology Technology Double progress: 1, long standby time 2 --- 3 years of the product once every 24 hours to send information to the GPS and LBS servers, A-GPS technology allows the product can fast positioning in the shortest possible time after the data transfer is complete, the product immediately into sleep mode. (As needed, to set their own positioning time, such as ten minutes positioning once) 2, free installation, small size, easy to hide. A teenage child can not put a good product effortless double-sided Velcro possession. 3, waterproof gasket and fully sealed waterproof design makes the product can work even in the long rain environment. 4, ultra-low voltage 2.0V to start the product can work even in the case of ultra-low voltage of 2V, which are known to the public, after a long battery voltage will drop the use of more and more low, until you can not use, so Let Locator environmental work in ultra-low voltage battery is maximize the effectiveness of the best ways. Armored car GPS locator, Double electronics, GPS positioning provided by Electronic Technology Co., Ltd., Zhengzhou Double. Double Electronic Technology Co., Ltd., Zhengzhou (www.zzgprs.com) is a leader in Zhengzhou, GPS systems, over the years, the company implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Double electronic leadership in the staff warmly welcome all inquiries negotiations to create a better future for Double electronics.