Wednesday, May 23, 2012

The installation methods of cell phone jammer

1 an electromagnetic shielding technology, shielding concept and role of shielding the electric field before the first screen the electric field E or magnetic field H or the magnetic field E1 H1 E2 screen after screen after the electric field E or magnetic field H or H2 restricted regions of the electromagnetic energy to be shielded leak to prevent external radiation interference into the masked region 2 shielding classification (Classification of shielding (1) You may also install the    cell phone jammer        against the room ceiling.electrostatic shielding of the electrostatic field of the shield - with a good grounding a good conductor of sound grounding using a good conductor of magnetic shielding of the electrostatic field low-frequency magnetic field shielding magnetic shielding shielding - high permeability material to low frequency magnetic field shielding materials with high permeability shielding conductor surface using the reflection of electromagnetic waves within the role and conductor absorption of electromagnetic waves of high frequency to achieve high-frequency electromagnetic fields absorption of electromagnetic waves shielding high-frequency electromagnetic fields to achieve the classification of the shield 3 shielding (shielding classification (2) active shield objects - source of harassment to limit disturbance to the disturbance source generated source of harassment, harassment shielded object volume outside source.
Outdoor power line connected to the filter connection, indoor power coupling from the waveguide within the phase leads to connectivity. wiring connected with the corresponding red line, yellow line corresponds to the zero line. Note (A) the filter housing (or shielded room) must be connected to the earth, to protect the personal safety. (B) must first filter maintenance filter discharges, obstructing the discharge current is less than 1A. (C) if the individual use of the filter and install it on the device cabinet (the cabinet is a metal shell) with its installation method installed in the shielded room on the same (note that the cabinet must be grounded). Then you need to master the installation methods of    cell phone jammer .(D) if used alone and in series with the filter power line, the output line must be shielded cable or the output line in a metal tube, cable or metal pipe with the filter housing cover and ground connection should be good to cut off filter input and output coupling in this filter is not suitable for work in the power frequency 400Hz or 1000Hz circuits. install the diagram attached to the ground 1) detection of shielded room insulation, disconnect the connection with the outside shielded room, screen room should have good insulation; 2) Check the engine room of the parts of the grounding line, the electrical conductivity with good performance ; 3)People should install    cell phone jammer according to the requirement of security protection. Check the external resistor to ground, the resistance should be ≤ 1Ω, shielded room ground; 4) All ground bonding surfaces should be clean oil, paint and other non-conductive material, should be sufficient clamping force to lap at the pressure tight; ceiling stage floor top surface cleaning, installation of ceiling tiles and ceiling keel, including top of the lighting installation, overhead lighting, installation of power lines, fire alarm and automatic fire extinguishing pipe installation, alarm sensor installation, installation of fire sprinklers, new wind pipe etc., including various types of pipeline cleaning and installation. (e) the relevant part of the construction of ventilation waveguide, the signal transfer board, fire shielding waveguide and other components to be shielded all steel construction is completed, the hole installation, the installation is complete, strict sealing process, shall not disclose (VI) You may install the    cell phone jammer        on the wall.self-shielding and related components installed, the first of its all welds, PSD, waveguide windows, filters, air conditioning and all shield connections at the interface for leak detection, identify the leak repair welding.

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