More research is needed for this type of cell phone jammer

With the EU Directive 89/336 EEC on 1 January 1996 entered into force (Note: The instructions were modified in the spring of this year), the United States, Japan, Australia and other countries and regions, governments have issued corresponding instructions, non-electromagnetic Compatibility does not meet their standard products into these countries and regions within the market or in production, so that the electromagnetic compatibility (and safety) mark the export product "passport."The letter on the package of    cell phone jammer   should be clear.  My company has been in the export of telecommunications equipment to go in front of peers, the company's goal is to reach within a few years of international business share of 50%, so we work more to pay close attention to electromagnetic compatibility to carry out, can not afford to not work in this area place and influence the international market development. 3, electromagnetic compatibility problems if the early stages of product development is not fully considered, is not well-designed, once the product is formed, its probability of compliance is very small, and the difficulties to solve the problem, it takes manpower and costs will be very large. More research is needed for this type of cell phone jammer . These points must be in senior leadership awareness and understanding of, or promote electromagnetic compatibility work is almost not go. EMC design involves the circuit board, structure, cables, equipment, power systems and grounding systems and other aspects, is very complex, far-fetched at first glance seem to touch, in fact, through reasonable methods of work followed in the design and EMC design some basic guidelines, or may be subject to a multiplier effect. The following more specific about the product EMC design work content. In the product (including board) clearly stated in the specification of products designed to meet the electromagnetic compatibility requirements, the products (including board) program debugging, testing, electromagnetic compatibility program prepared in the test project. Avoid static-sensitive devices, use of electrostatic sensitive devices is generally not less than 2000V, otherwise they will be considered carefully, anti-static design methods; in structure, to achieve a good connection to the gas and take the necessary insulation or shielding, improve the machine's anti-static capacity.  Many experts of    cell phone jammer   devote much spare time to improve the quality of    cell phone jammer   . CMOS circuit design to take anti-latch. CMOS devices idle floating pins to avoid, depending on the characteristics of the device is idle or pins to the power side to side. The function introduced at the board power supply filter circuit suitable to be used, as far as possible the same time filter out common mode noise and differential mode noise, noise relief work in particular, with the signal to be separated, consider using protected; IC The power input decoupling capacitor should be arranged in order to improve anti-jamming capability. Radiator with the board within the power or ground or shield to protect the ground connection (connect shield to priority or protected), to reduce the radiation interference. In general levels of power input, the output should use the appropriate filter circuit.Many technical engineers make great contribution to enhance the quality of   cell phone jammer .   rack, shielded box is designedto do? If you do the shield design, to analyze the characteristics of electromagnetic fields, determine what shielding materials, to determine the size and number of openings, to determine the manner and lap lap material. clear maximum operating frequency of each board, the operating frequency in the 160MHz (or 200 MHz) or more devices or components of the shield to take the necessary measures to reduce the radiation level and to improve anti-interference ability of radiated interference.