Sunday, July 15, 2012

It is easy to buy a LM-2012 cell phone jammer



Improve the shielding effectiveness of the gap structure measures include increasing the depth of the gap, reducing the gap length, joined in with the surface of conductive pads, coated with conductive paint in seams, shorten the distance between the screws. [Lap] a, in the case of each floor and seam discontinuities and to the best possible lap.Therefore, the electromagnetic signals sent by cell phone jammer do no harm to human bodies. The worst lap of the shell of the electric shielding effectiveness play a decisive role. b, to ensure that the seams of metal on metal contact, to prevent the leakage of electromagnetic energy and radiation. c, where possible, the seams should be welded. In the case of restricted conditions, the available spot welding, riveting and convincing pitch screw to fix. d, in a non-conductive gasket, the screw spacing should generally be less than the maximum operating frequency of 1%, at least not more than 1 / 20 wavelength. e, with screws or riveted to overlap, they should first lap in the middle of a good seam, and then gradually extend to the ends to prevent bending the metal surface. The low voltage and low current of the MDPB-02 cell phone jammer guarantee the nonstop steadily long playing.f, fastening methods to ensure there is sufficient pressure so that there is deformation stress, shock, vibration, to maintain contact with the surface. g, where the seams are not flat, or removable panels, etc., must use the conductive pads or finger spring material. h, selection of high conductivity and elastic pad. Select the liner combination of the premises to consider the frequency of use. i, choose a hard liner made of ductile materials in order to cut through any metal surface. j, with cushioning material to ensure that the metal surface with no non-conductive layer of protection. k, when necessary activities to reach, use finger pressure spring, and spring means to maintain flexibility to pay attention to the pressure. l, conductive rubber gasket used in the aluminum metal surface, we should pay attention to electro-chemical corrosion. The MDPB-02 cell phone jammer selected and put the imported high-powered integrated circuit to use.Silver or monel linear rubber filler gasket will suffer the most severe galvanic corrosion. Silver aluminum filler conductive rubber is used for salt spray environment, the surface of aluminum metal with the best cushioning material. The following are ranked according to priority of various pads. A wire mesh RF gasket is easy to deformation, pressure 1.4kg/cm, the attenuation of 54db. Data indicate that the maximum attenuation at lower frequencies. For a permanent seal is better, not suitable for on and off the panel. 2 copper plated alloy has a high electrical conductivity and good corrosion resistance. Good elasticity, and the most suitable for activities with the panel. Can be made refers to the bar, spiral and saw tooth surface. Attenuation of 100db. 3 applies only nominally conductive rubber connection and a small screw place. Achieved by sealing moisture sealing and electrical 1500 ℃, 48 hours of aging, the body resistivity of 10 ~ 20mω/cm (max). The MDPB-02 cell phone jammer selected and put the imported high-powered integrated circuit to use, so the quality and performance are stable.Deformation degree of limitation is 25%. Data show that the maximum attenuation at higher frequencies. 4 conductive mont in the foam on the Mongolian a silver braid to form a soft liner, accounts for most of the loose space, mainly civilian, foam liner for cabinets and doors. Penetration and opening] [a, pay attention because the cable through the chassis to reduce the overall degree of shielding effectiveness.

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