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, 2-40 layer multilayer professional providers, to provide customers with high-precision, high Shenzhen circuit board quality, quality assurance, reasonable prices. Subsequently, there were plywood, it can greatly increase the wiring area. MLB spend more single or double-sided circuit board. A few pieces of plywood using double-sided, and put a layer of insulation after sticky prison (nip) between each board. Board layers on behalf of several layers separate wiring layer circuit board recycling, generally layers are even, and includes the outermost layers. Common are 4-8 layer structure, but technically it can be done close to 100 layers of PCB board Newell Shenzhen Electronic Technology Co., Ltd We often say that the GPS positioning module known as user part, it's like "Radio ", as received, demodulated satellite broadcasting C / A code signal, to a frequency of 1575.42MHz. GPS module does not broadcast signal circuit board design, a passive positioning. By pseudo-distance operation and each satellite, determined using the intersection method from the receiver to draw longitude, latitude, altitude and time correction of these four parameters, and there is the point fast, but the error is large. Initial positioning module requires at least four satellites involved in the calculation, called 3D positioning, three satellite positioning can be realized 2D, but poor accuracy. GPS module via the serial communication port constantly positioning information and auxiliary information output NMEA format for the recipient to select applications. Circuit board design | Shenzhen board | Newell Newell hit by the Shenzhen Electronic Technology Limited. Circuit board design | Shenzhen board | Newell Year is the Year of the Shenzhen-Electronic Technology Co., Ltd. (www.yipcb.com) (www.yipcb.com) this year introduced a new upgrade, the above picture is for reference only, please call The page or contact phone pictures on obtain the latest information, contact: Huang Shengxing.