Friends who are familiar with cell phone signal jammers should have encountered such a situation. There is an operator's base station not far from the use site, or an indoor signal distribution system is installed in the corridor. As a result, the shielding effect of the mobile phone signal jammer is greatly affected. When encountering such a scene, how should we deal with it, or how to reasonably configure the mobile phone signal jammer.

1. If the prepared cell phone signal jammer is on site, it has a certain shielding effect, but the distance does not meet the requirements. If configuring two identical mobile phone signal jammers can solve the problem, configure two, or use a spectrum analyzer to detect the signal spectrum on site. , through analysis, find out the most difficult signal frequency to shield, then add shielding modules of the corresponding frequency band in the mobile phone signal shielding device, then disperse the frequency distribution, and reasonably allocate the transmission frequency of each module, which can have a good effect on the on-site shielding effect. Some improvement.

2. If the first method still cannot achieve the expected shielding effect, then a high-power shielding module can be used to supplement targeted shielding of a certain frequency band with strong signals. Cooperate with a low-power mobile phone signal jammer to achieve full frequency coverage and shielding of the mobile phone frequency band. Through this method, the module model SMa-818K90 or the high-power module SMa-818K200 produced by Nanjing Baikang Mechanical and Electrical Technology Co., Ltd. can be used to implement the above method. This method can save a lot of costs and achieve on-site signal shielding. Very good value for money.

Among individuals or organizations that use mobile phone signal jammers, mobile phone signal jammers are used in school exams to prevent exam fraud, and mobile phone signal jammers are used in conference venues to keep the venue quiet or to keep conference information confidential. These are all out of good intentions and purposes. But there are also those who do it for their own selfish interests. For example, the head of a household that operates a public phone may use a mobile phone signal jammer to interfere with the mobile communication base station near the location where he operates, so that people working near the public phone he or she operates will not be able to use their mobile phones. Use public phones to make calls and increase your financial income. In addition, mobile communication operators may also use mobile phone signal jammers to harm each other's interests and gain advantages in certain local competitions in the same industry. In addition, it is easy to add software to the signal jammer and become a veritable eavesdropper.

The above are the purposes of using mobile phone signal jammers, but no matter how high-sounding the purpose is, it cannot be achieved at the expense of public mobile communications. In fact, according to research, it is possible to install a mobile phone signal jammer without affecting the normal use of mobile communications by the public:

There are three reasons why mobile phone signal jammers interfere with mobile communication base station signals:

First, users of mobile phone signal jammers completely fail to take into account the communication needs of outsiders and target the wrong target. They should restrict mobile phone communication to a small group of people (such as candidates), but instead extend the target to the surrounding people.

Second, the use method is improper. Because the mobile phone signal jammer is installed in an improper position or its transmission power is set too high, it should be controlled within a small range but is not properly controlled.

Third, the mobile phone signal jammer purchased by the user does not meet the radio equipment approval standards, the power exceeds the standard, or it is an inferior and substandard product.

After identifying the cause, in order to overcome its impact on mobile communication signals, it is actually very simple: first, use standard products produced by regular manufacturers, second, choose the installation location and direction of action, and third, set the appropriate transmit power. , just limit its transmitted signal to a small, airtight range. As long as the above three points are met, the impact on nearby mobile communication base stations can be minimized, and at the same time, it will not affect the normal calls of the surrounding people.