The shielding effect of the full-band signal jammer is not ideal. How to improve the shielding effect?
We often receive more questions from customers, that is, the on-site signal is relatively strong, and the shielding distance of the full-band signal blocker is relatively short. So what should be done to solve this situation? How to improve the shielding effect? The probability of this situation is relatively high for manufacturers of signal jammers, using a base station with an operator not far from the site, or an indoor signal distribution system installed in the corridor. The signal strength of the mobile phone is relatively high. As a result, the shielding effect of the full-band signal jammer is greatly affected. In this case, there is no need to panic, and there is no need to complain that the signal jammer produced by the manufacturer is faulty. There are usually the following ways to improve the shielding effect.
1. When the signal jammer is used on site, it has a certain shielding effect, but the distance does not meet the requirements. If it can be solved by configuring two identical devices, two sets can be installed, or a spectrum analyzer can be used to detect the signal frequency band on site, and find out through analysis. To find the most difficult signal frequency to shield, in the device, add the shielding module of the corresponding frequency band, then disperse the frequency distribution, and adjust the division of the shielding frequency band. The shielding effect is improved by using a high frequency and narrow bandwidth of power. Reasonable distribution of the transmission frequency of each module, so that the shielding effect of the scene can be changed to a certain extent.
2. The above method still cannot achieve the expected effect of shielding. A high-power shielding module can be used to supplement the targeted shielding of a frequency band with a strong frequency signal. Cooperate with the low-power full-band signal jammer to achieve full-frequency coverage and shielding of the mobile phone band. Through this method, a high-power module of a certain frequency band, model SMa-818K90, produced by Nanjing Bokang Electromechanical Technology Co., Ltd. can be used to realize the above method. This method can save a lot of cost, and can achieve a strong shielding effect on site, and comprehensively consider a method with relatively high cost performance.
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