1, all metal entity will be on the GPS signal shielding Zhengzhou GPS locator to join, please note that the car containing the metal coating film will have a shielding effect on the GPS. Heavy volume of non-metallic objects can also have an impact on Star Search, a few centimeters thick wood will be completely shielded GPS signals. Even the next bus will affect the GPS signal 2 GPS locator, glass and plastic for the GPS signal will produce mild attenuation, so the GPS on the car windshield or the following travel tourism in pocket will not search Positioning have much impact. 3, in the city, viaduct, outdoor billboards and other visual angle of 45 ° above the building; outdoors, towering canopy, continuous mountain Zhengzhou GPS locator manufacturer, will have an impact on the GPS satellite signals. In actual, the impact of the water seems to be the most obvious and most immediate, and the impact viaduct and car glass film is much smaller than imagined so serious. And also from the human hand is to reduce the accuracy, because the GPS system is the property of the US military, will be free to reduce civilian signal accuracy when necessary, or completely shielded, so that in the vast majority of daily use affect our environment suffer most from the weather. Why Car GPS vehicle monitoring system will be offline one, GPS vehicle monitoring system, or GPS positioning system, will depend on the data card offline GPS terminal used on the current situation, 2G mobile network offline little less blind, Unicom Telecom worse a little. In other words, as long as no signal when the car GPS positioning terminal will be offline. For example: the underground garage, and other remote mountainous areas are likely to experience poor signal caused by GPS monitoring system offline. 2, GPS monitoring system offline and GPS vehicle monitoring device may concerned, some GPS devices do not have the base station switching autodial feature GPS locator wholesale Zhengzhou, in the base station switching process, even in the urban car GPS vehicle monitoring system is also offline . How to prevent GPS positioning system was removed, how do you remove the GPS positioning system is now widely used, especially in the automotive field, is used as a vehicle management, vehicle theft, vehicle leasing, mortgage vehicles, movable assets, risk control. GPS positioning system in a specific industry, has been no secret at all, were removed inevitable. So how do you prevent GPS positioning system was dismantled it? 1, the choice of tamper-GPS positioning system, when the device is vandalism, increasing the difficulty of removal. 2, the choice of a spare power GPS positioning system, when external power is destroyed, still short position, and alarm information. 3, install hidden as much as possible. 4, after the removal of track playback function can be used to find the activity patterns of people or vehicles to install GPS locator Zhengzhou, Double electronics, Zhengzhou GPS locator is 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.