Branch Snyder Department of International Ltd. Shenzhen-Electronic Technology Co., Ltd. - The Department of Electronic Technology Company is a professional custom single-sided, double-sided, professional supplier 2-40 layer circuit board modules which deal with plywood, to provide customers with high-precision, high-quality circuit board in Shenzhen, quality assurance rigid circuit board module, the price is reasonable. FR-4 substrate is a copper substrate highest level who is an epoxy resin, glass fiber cloth fabric was eight, and three distinct copper plating material impregnated, covered from pressure. Wherein the glass fiber cloth impregnated with epoxy resin adhesive film is formed as an insulating and supporting electronic components used between the copper foil is made for electronic components of the line connecting conductors. Newell Shenzhen Electronic Technology Co., Ltd. GPS positioning accuracy can be investigated under static and dynamic conditions, and dynamically positioned better than static positioning. GPS module positioning parameters nominal refers to the fully open sky, the satellite signal under good 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, which means the measured point has a 50% probability in a real-world coordinates of a circle with a thin gold circuit board module to m radius? inner circle; the second is m2DRMS, namely 2 times the level of the root mean square error, meaning the measured point of about 95.5% probability in a real-world coordinates to a circle, within a circle with a radius of m??. Shenzhen circuit board modules, circuit board modules which deal, Newell record (certified merchants) provided by the Department of Shenzhen-Electronic Technology Co., Ltd. Newell Shenzhen Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) in the printed circuit board in this area devoted boundless enthusiasm and passion, Newell has been creating customer-centric, for customers to create Idea value, quality, service to win market, and sincerely hope to cooperate with the community to create success, to create brilliant. Related businesses welcome inquiries, contact: Huang Shengxing.