It is the principle analysis of cell phone jammer

First, based on the value chain linkage development. Mobile industry value chain in all aspects of the company based on their different needs or vulnerable, has started the company with strong R & D, production ability of different levels of EMS companies started cooperation, alliances and other forms; second, based on the joint development of products mode. That R & D companies, brands, EMS manufacturers --- "tripartite cooperation" of the new model, the value chain from R & D, design, manufacturing to marketing, to achieve three aspects of the entire value chain of interactive development, in order to take full advantage of their of resources. GSM contains 900 MHz and 1800 MHz (also known as DCS) which will be influenced by cell phone jammer.
Third, based on the subject of cross-linkage development. Changing market environment and competitive pressures, the main types of mobile phone EMS / ODM, domestic manufacturers and foreign manufacturers is beginning to show the development of cross-linkage pattern of what they need, complementary advantages, both competition and cooperation. Strengths and weaknesses of each company as shown in Table 7. At present the main types of mobile phone production have been completed at this stage of production, research and development layout, as shown in Table 8. China's mobile phone industry cluster development, in 2005 China's mobile phone manufacturing industry comprehensive loss, net negative growth rate since the beginning (net rate of -3.7%), China's mobile phone industry, market competition will lead a new round of Chinese mobile phone industry cluster a new round of development. Although cell phone jammer  realizes forbidding using the cell phone.
Mobile phone manufacturers the competition for market share around the competition will be more diverse, and in the pursuit of profitability and competitive differentiation enhancement, such as by optimizing the upstream supply chain, channel adjustments, and a reasonable inventory control to streamline the pursuit of profitability; been started development, strengthen and enhance the existing R & D capability, continuous integration, the use of the whole supply chain together to further develop a set of industry clusters competitiveness of the cluster effect. With the major well-known multinational companies have set up design center in China and global procurement center, China's global mobile phone industry is becoming increasingly important, but also for Chinese companies to enter the multinational global procurement and supply chain. It is the principle analysis of  cell phone jammer .
From the microscopic point of view, the major multinational companies to ensure that the requirements for suppliers to enhance the level of suppliers, the suppliers have to adapt to the higher technical requirements, quality standards and operational requirements, to promote suppliers worldwide to enhance competitiveness and to achieve business growth; From a macro point of view, global sourcing as a new trade channels and trade, China suppliers of multinational companies into the global supply chain, will expand the scale of export Chinese products to promote the export structure upgrading. An innovative feature of industrial clusters should have three networks: the first layer network is the division of labor within the industry cluster production collaboration and cooperation network; the second-level co-production services leverage the network; third-level knowledge and innovation in information Environment Network. The test of cell phone jammer  is based on the actual measurement and emulational analysis.