The gain of the jammer and power output

There are a few things that will affect your signal. The gain of the jammer and power output. As described above, the gain is increased power into the jammer outside the number of times of the jammer. Gain in the DB a way to make a lot of easier to write. If you use too much gain is fed to 3 watts of power, sound distortion and power is wasted. We do not just want a phone jammer education. Can be seen as auto0752, vehicle or house. A powerful jammer required external dual-band directional antenna distance is about 20-25 feet. If the home of the car is shorter than the jammer should be used or not-so-powerful, dual-band antenna orientation.
Let's start with the mobile communication system. You have limited space to arrange the components in the car or semi. More powerful jammer require more distance between the external antenna and the internal antenna, there is no oscillation signal and the interference.
Domestic mobile phone enterprises is still small. Production of GSM mobile phones, for example, a joint venture of several major international mobile phone giant in the domestic production capacity is very high. As a whole is still at a disadvantage. China's mobile phone production enterprises R & D strength progress in the short term there is no doubt, but the technology gap, and still get rid of the situation of the domestic mobile phone can not be controlled by others. 3G standard study abroad six to eight years, our research, there are only two or three 3G standards. Mobile phones to facilitate people's lives, but still need a cell phone jammer. Although the domestic mobile phone enterprises in technology development and world-class distance shortened from the core technology of the production of "OEM" production level, but the overall technological level of domestic mobile phone enterprises are still far behind in a foreign mobile phone companies, almost all of the core technology in hands of foreigners. Domestic mobile phone manufacturers, mobile phone baseband chip, RF core, the core technology is not yet fully grasp the manufacturing. In the huge market demand for traction, driven by mobile communications, the mobile communications industry in China has become the most attractive areas for investment. According to the Ministry of Industry and Information Technology 35 research perspective, bank loans and local government matching funds. For mobile communications network covering a large extent, it requires more cell jammer performance.