The manufacturer should pay much attention to the quality of cell phone and cell phone jammer

The latter material just the opposite. Window method is characterized by a transparent shield: shielding windows and transparent method of characteristics: the window method is characterized by: Simple, display device will produce radiation or sensitivity to external interference can be used. Disadvantages: poor vision, when the magnetic field inside the device sensitive to radiation or magnetic circuit is not suitable; (transparent shielding material for shielding effectiveness is very low or no magnetic field), when the window is large, the cost is higher. No matter where the cell phone and  cell phone jammer are sold, the quality and after-service should be guaranteed for clients. Storage method is characterized by isolation: isolation storage method is characterized by: Advantages: the visual display device is almost unaffected, do not undermine the case for magnetic field shielding effectiveness. Disadvantages: If the monitor itself or on the outside interference of electromagnetic radiation sensitive, this method is not suitable; display devices require high-frequency electromagnetic current work does not fit. If the display device will produce radiation, and magnetic sources within the chassis, you can combine the two methods. Installation Notes transparent shielding materials: transparent shielding materials Installation Notes: First of all, transparent shielding materials and shielding to achieve a good overlap between the body, reducing the gap leakage. Of course, the price of cell phone and cell phone jammer is also concerning to the client. Coated with conductive shielding materials, conductive layer can not be left exposed, to prevent scratches.
Electronic circuits in shielding electronic equipment at work, due to the presence of certain components or circuit capacitance or electromagnetic fields and the distribution of harmful parasitic coupling phenomenon, cause the device to the internal, external electric field, magnetic or electromagnetic interference to electronic equipment, circuit interference phenomena appear self-excited, and so can not work properly. In order to ensure stable and reliable electronic equipment to work to eliminate all interference, shielding is one of the best. With modern electronic technology, electronic devices and electronic circuits in shielding technology have become increasingly demanding. The manufacturer should pay much attention to the quality of cell phone and   cell phone jammer . Shielding is the use of high conductivity or permeability of the material made of boxes, rings, tubes, shells, nets, tank, screen, plate-like objects such as shape, then in the prone electrical, magnetic interference of electronic devices, electronic circuits , using its own good electrical conductivity or magnetic properties, the electromagnetic wave reflection, the electromagnetic energy is limited to a certain extent, to protect the device or circuit to work uninterrupted. Currently, electronic devices and electronic circuits in the shield can be divided into three types, namely, the electric field shielding, magnetic shielding and electromagnetic shielding. First, the electric field shielding electric field shielding, also known as electrostatic shielding, the main component or circuit to suppress the distribution of capacitance due to parasitic coupling between the formation of the electrostatic field or electrical interference. Purpose is to isolate or eliminate the presence of electric field generated by the interference. cell phone jammer has various sales channels and selling modes as well. According to physics, the conductor who does not live near the charged body, the external electric field E due to the role of non-charged surface at both ends of the conductor will induce a charge equal to the charge, so do not live conductor internally induced electric field E.