The cover radius of mobile phone jammer is large

Power supply switch of the host cell phone jammer
The largest conductor surface field, the more in-depth internal conductors, the amount of the smaller field. This phenomenon is also known as skin effect.
The cover radius of mobile phone jammer is large.This is because the conductivity of the metal conductor conductivity than air a dozen orders of magnitude larger, while the ferromagnetic material and the air permeability of the difference only a few orders of magnitude, typically about thousands of times, so the static magnetic always some leakage magnetic shielding order to achieve better shielding effect, shielding layers can be used to leak into the cavity where the residual magnetic flux to block out time and time again, so good magnetic shielding effects are generally more cumbersome, but if you want to made absolute "static magnetic vacuum", you can use superconductors Meissner effect. cell phone jammer is an ideal, advanced and reliable product with safety. About a superconductor on the external magnetic field, the body of the magnetic induction B is always zero. Superconductors is completely anti-magnet, with the best static magnetic shielding effect, but is still not widely used for electromagnetic shielding electromagnetic field propagation in conductive media, the field quantities (E and H) the amplitude increases with distance decay exponentially from the energy point of view, the electromagnetic waves in conductive media energy loss when spread, therefore, the amount of the performance of field amplitude decreases. the largest conductor surface field, the more in-depth internal conductors, the amount of the smaller field. cell phone jammer only blocks cell phone signals in the specified area.This phenomenon is also known as skin effects can prevent the use of skin effect high-frequency electromagnetic waves penetrate a good conductor and electromagnetic shielding device made of it than the static, static magnetic shielding more general electromagnetic shielding is to prevent interference, to enhance equipment reliability and effective means to improve product quality. Here is the product performance of cell phone jammer.Reasonable use of electromagnetic shielding, can inhibit the external high-frequency electromagnetic interference, but also as a source of interference to avoid affecting other equipment such as radio, aluminum hood with air-core coil outside, it's free from outside interference time-varying field in order to avoid noise. Audio feeder with a shielded cable is the reason. CRT skin and iron, but also to make the stray electromagnetic field does not affect the scanning electron beam in the metal shield inside the shell components or high-frequency electromagnetic waves generated by the equipment but also through the metal shell and not will not affect the external equipment. electromagnetic shielding material for what it? The screening frequency range of cell phone jammer could be controlled. Good conductor due to electromagnetic wave attenuation in the fast decay to the conductor surface to the surface value of 1 / e (about 36.8%) at the thickness of the skin known as the thickness (and said the penetration depth), indicated by d, electromagnetic shielding, electromagnetic field propagation in conductive media, the field quantities (E and H) the amplitude increases with distance decay exponentially from the energy point of view, the electromagnetic waves in conductive medium when the transmission energy loss, therefore, the amount of the performance of field amplitude decreases.