Many customers call and say that I need a cell phone signal jammer that can shield the mobile phone with a radius of 50 meters, an interval of 500 meters, and a radius of one kilometer, and it must be shielded by China Mobile, China Unicom and China Telecom. Is there a problem with the customer's request? No problem, and a specific interval requirement is also given, but can it be completed? The answer is that it is more difficult to achieve. Why is it more difficult to achieve? Isn't there a shielding interval marked in the Rf Jammer Esp 8266 Cell Phone parameters, can it be completed by putting a few more sets according to this interval? In fact, it is not the case, the customer is not wrong, but they do not know the shielding of the signal jammer Planning is not a fixed value, how to understand it. The signal jammer scans from the low end of the channel to the high end at a certain speed during the operation process. This scanning speed can cause garbled interference in the message signal received by the mobile phone, causing the mobile phone to fail to detect the normal microwave signal announced from the signal tower. Data, within a certain plan, make the mobile phone unable to establish a connection with the signal tower, and achieve the purpose of shielding the mobile phone signal. Simply speaking, the frequency announced by the mobile phone jammer disturbs the frequency of the mobile phone to receive the signal tower. The mobile phone jammer and the signal tower are destined to be a competition connection. If the transmission power of the mobile phone jammer is less than the signal tower in the environment at the time, The channel power of the mobile phone, then the mobile phone signal jammer can not be shielded, only the power of the mobile phone signal jammer is greater than the power delivered to the mobile phone by the signal tower in order to be effectively shielded. cell phone jammer
Therefore, any one Rf Jammer Esp 8266 Cell Phone will show different shielding intervals when used in different signal environments, and mobile, China Unicom, and telecommunications will be different. Because of the signal tower density, signal tower orientation and signal tower power built by these three operators, it is impossible Are the same. In other words, how many meters can be shielded by a mobile phone signal jammer is not only related to its own transmission power, but also to the distance between the signal towers in the environment of use (the signal tower is not limited to large-scale transmission towers built on the ground, but also There are signal expansion antennas on the roof and signal expansion and spreading in some buildings). Another important factor is obstacles. If it is a metal material, it will be blocked directly; if it is a solid wall of reinforced concrete, there will be less penetration. It will be attenuated by 10 times; if it is a wood board or glass material, the attenuation will be relatively small. So next time there are customers who say how many meters apart they need to be shielded, they must ask about the distance between the signal towers in the environment, and whether they are used indoors or outdoors, whether they need to penetrate walls, and so on. Customers can contact us to learn how to use signal jammers. Only by understanding these can they better choose suitable signal jammers for customers.
