Newell Shenzhen Electronic Technology Co., GPS positioning accuracy can be investigated under static and dynamic conditions, and dynamically positioned better than static positioning. GPS positioning parameter module nominal refers completely open to the sky, the satellite signal under excellent conditions measured. Therefore, in conventional tests is difficult to achieve positioning time and positioning accuracy nominal. Common horizontal positioning accuracy is described in two ways:? First mCEP, namely circular error probability Pb-free board, which means the measured point has a 50% probability to the true coordinates in a circle, with a radius of m? the inner circle; the second is m2DRMS, ie twice the level of the root mean square error of the board, which means the measured point located approximately a 95.5% probability to the true coordinates of a circle, within a circle with a radius of m??. Snyder International Ltd. Shenzhen Branch Newell Electronic Technology Co., Ltd. The company is a custom 2-40 layer PCB board professional providers, the main provider of the plate there HDI boards, finger board, Bluetooth module board, half plate, through the plate, rigid-flex board, plywood and other series of plates. If you do metalized slots safest approach is to put together more than one pad green circuit board, this approach is not necessarily wrong. GERBER file Check whether to file a small layer phenomenon, usually directly in accordance with GERBER documentation. Using three software design, please pay special attention to the key bit is needed exposed copper. Heilongjiang Province (black) board, Newell record, the board process is what Newell from Shenzhen Electronic Technology Limited. "Pcb board" preferred Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com), the company is located: Bao'an District, Shenzhen City forward Road Newell Innovation Center B507, over the years, Chile Inno to provide customers with the best quality service, Contact: Huang Shengxing. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Newell creators expect to be your long-term partner!