cell phone jammer can prevent the military confidentiality leaking

The second line of information represents the software release date (day / month / year), the third line is the instrument with Brush's friends are concerned with the information, do not do redundant described in this small series. Typically, cell phone version of the software at the factory are generally 2 or 3 in the beginning, of course, this time also with a large number of the BUG. When the first digit update to 5, when the software is the most stable, most mature, and then promise in mind usually will not be updated. Xiao Bian today talking about this topic, the most important reason is to collect all current cell phone models N recorded the latest version. The warehouse of  cell phone jammer still has large space to store more cell phone jammer .
In our country, the mainland port line from the line or within one year after purchase customer service center can all be a free upgrade to the software. Therefore, we sincerely hope that the following table can be helpful to everyone in the pigeon-holing, please upgrade your cell phone as soon as possible to the latest, free to exercise your rights. Radio transmitter output RF signal power, through the feeder (cable) transmission to the antenna, form of electromagnetic waves radiated by the antenna out. After the wave reaches the receiver locations, followed by the antenna (receiving only a small fraction of power), and through the feeder to the radio receiver. Can be seen, the antenna is transmitting and receiving electromagnetic waves is an important radio, no antenna, there is no radio communication. The parameter in the drawing of cell phone jammer is important.
A wide variety of antennas for different frequencies, different purposes, different occasions, different requirements for different circumstances. Internal, external antenna comparison. The main purpose of the current cell phone antenna and external antenna built two types of built-in antenna objectively than by the external antenna is weak. Erection of the antenna is far away from the ground and buildings, antenna close to the reference to the time, most of the energy will be concentrated between the antenna and the ground reference, and can not successfully launch, so antenna, you need a "best open" space. The cell phone circuit board is a reference to the antenna, the antenna away from the cell phone the other circuits, is to improve the efficiency of the key cell phone antenna. But by the physical constraints and the pursuit of easy to carry all the requirements, the design of cell phones must be electrically compromise. The testing center of cell phone jammer contains four departments.
In fact, all GSM cell phones to send the receiver circuit is based on the gain is automatically adjusted to changes in the environment, through a reasonable set of parameters, it will automatically compensate for the loss. Therefore, the cell phone the whole, in the case of the signal is better, internal antenna and external antenna and can not see the difference. Difference is there, in the case of weak signals, especially the long antenna outside antenna signal dead spots within the threshold will be higher than the antenna, the antenna within the cell phone is theoretically easier to loss of signal in weak signal environments. Radiation, the antenna must be large decline in the efficiency of the transmission power compensation, under the same conditions of radiation within the antenna larger than the outside antenna. However, the actual human body by radiation and the whole structure, internal antenna cell phone antenna can also be arranged through a reasonable position to offset the effects of radiation on the human body. The repair rate of mobile phone jammer has been reduced to the satisfactory level.
Cell phone radiation is mainly caused by transmitter module antenna, cell phone antenna has been very thick, and its role is to reduce the emission of the resistance. Can be said that cell phone radiation antenna, while the so-called magnetic stickers attached to the listener the above is not enough, because it will change the magnetic field around the antenna, the antenna signal change, making the call can not be normal cell phone operating system generally used in high-end smart cell phone. Currently, in the smart cell phone market, China's market-based mobile personal information management is still dominated, as more vendors to join the competition in the overall market has started showing a decentralized situation. Capacity from the market, competition, and applications of point of view, the market is still in start-up phase. The findings of cell phone jammer should be taken care of.