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The expert group is making every effort to enhance the design of the Cell Phone Jammers system.
The standard test signal I1: is GsM modulated carrier signal, and its structure in accordance with the GSM signal burst (burst, as burst or short burst. Below) structure, but its all modulation bits (including the burst of part of the training sequence) are directly random or pseudo-random data stream. (5) The standard test signal I2: a standard GSM modulation signal, but with the C1 signal is different from the unexpected part of the training sequence of the standard GSM training sequence, but the burst of data bits (including bits 58 and 59) are random or pseudo-random data stream. Using the same standard RF cable and adapters, including adapters, including the requirements of the GSM bands between the channel loss is less than 0.5dB, loss of value of the difference is less than 0.2dB; DCS frequency band between the loss of each channel is less than 1dB, loss value difference is less than 0.3dB, with characteristic impedance adapter should be within 50 ± 5 ohms. The table will contain the result of quantity computation of Cell Phone Jammers .I use the above principles and interface technology to develop a project: Highway display guidance system. Installed on the highway in front of the LED display shows real-time road vehicle traffic situation and weather and climate conditions, advise and guide the driver, the correct driver. The use of the system to some extent, eliminate a lot of traffic hazards, thereby safeguarding the smooth flow of road safety and peoples lives and property. The system consists of the control center and several display screen. Control center in real time the latest information sent to the display. Building control center communication link with the display terminal, the traditional method of laying fiber optic cable with the cable or the realization, or build a private wireless network allowing wireless. Because of the special nature of the highway, the control center and the distance between the display terminal is usually very far, two programs must invest a lot of money and huge construction effort.
Typically, short message service SMS-based wireless data transmission monitoring and control system for a point to multipoint wireless two-way data communication and remote control system, shown in Figure 1. System control center or command center for data, from computer networks, databases, electronic map and GSM communication interface. The main control center complete the information and data transceiver and finishing: on the one hand, to receive various control points to upload information and data, and put them in the appropriate database and distributed to the appropriate monitoring computer in order to achieve the various monitoring points monitoring and management; another aspect, a computer control center monitors the response issued by the various monitoring points of the control information, and to the information issued to the corresponding control points to achieve the point of monitoring equipment for control purposes.

 cell phone jammer will not intercept on the base station.
Visible, smart phones, large screen, large screen products favored by the users. Chinese mobile phone market in June 2011, the smart phone market with different screen sizes attention to the proportion of contrast. Case Study: Apples share of continued expansion. Apples global handset market share continued to expand. According to the U.S. market research firm Gartner statistics show that, since 2007, Apple introduced the iPhone smart phone, smart phone market, the pattern began to change. In 2008, Apple alone an iPhone, the global market share has reached 8.2 percent, while the first quarter of 2011, only three years, alone, four generations of iPhone products, Apples market share has reached 16.8%, to become the worlds first The three operating systems. cell phone jammer will just influence the downlink.
2007-2011Q1 Apple Worldwide sales of mobile phones and smart phone market share trend. Data sources Gartner, data management: ZDC. Apple user attention in the smart phone market in China is climbing. Rattling trend in the global mobile phone market with Apple, the Apple in the smartphone market, but also showed the fierce attacks, especially in cooperation with China Unicom, Apple users attention from record highs. The ZDC monitoring data show that the smart phone market in China in June 2011, Apple accounted for 9.2 percent of the concern proportion, only a difference of 2.6 percent and Motorola. In addition, from Apple released the data, the establishment of the ecosystem and no brand. This is a considerate design for cell phone jammer .
Since 2011, the three operators for 3G mobile terminals, a number of Central Purchasing universal low-priced products has always been an important source of new 3G subscribers, new subscribers expected to reach the end of universal terminal undoubtedly become the focus of the tender object, and an important platform to promote value-added services as operators necessary to support the role of popular intelligent terminal to enhance 3G users overall ARPU value are bound to become the top priority of purchases and sales. Sino Market monitoring data show that in October this year, 3G smart market 700 to 1500 the proportion of the price reached 54.7%, 24.6% increase compared to same period last year, up significantly. The insulation feature of cell phone jammer is very important for the customer.Products, the number of 3G thousands of intelligent machines models increase from 15 in October 2010 to October 2011, 123 models, thousands of intelligent machines has become a new force of the smart phone market. The low-end market into focus. IPhone users and thousands of intelligent machines the user using the data flow to compare, you can find iPhone users monthly data traffic is not significantly higher.