dojammer signal blocker

  Can  cell phone signal jammers  shield through walls? To answer this question, we need to look at several situations. First, let's look at the cell phone signal jammer itself. The mobile phone jammer transmits a wireless radio frequency signal specifically for mobile phone signals. When it encounters a wall in the transmission path, part of the signal will be reflected back, and part of the signal can directly penetrate the wall, but the signal strength will be attenuated to a certain extent. And facing different walls, the attenuation degree of mobile phone jammers is also different. For example, the wall is a reinforced concrete wall or a brick-concrete wall. If there is a reinforced concrete wall and two consecutive brick-concrete walls, the interference signal emitted by the mobile phone signal jammer is basically attenuated, that is, it cannot be used through the wall. Therefore, the signal emitted by the mobile phone signal jammer usually cannot penetrate the wall...

 Some customers will mention such a question: a 6-story teaching building, each floor is about 1,500 square meters, whether 1-2 high-power cell phone signal jammers can achieve cell phone signal shielding for the entire teaching building. Nanjing Bokang Electromechanical Technology Co., Ltd. does not recommend the use of high-power  cell phone signal jammers  to shield a 6-story teaching building. This idea is understandable. After all, the number of jammers used is small and it is easy to install. Why is it not recommended to use high-power cell phone signal jammers to shield a 6-story teaching building? There are several reasons 1. It is recommended to use stairs below the 4th floor to shield the entire teaching building. Above the 4th floor, the signal transmitted by the base station to the teaching building will reduce most of the obstructions, so the cell phone signal strength transmitted to the high floors above the 4th floor of the teaching building will be higher ...