Generally speaking, the minimum range of signal jammer is tens of meters. As long as there are enough jammers, the maximum is unlimited. Otherwise, how can the prison achieve all signal shielding?
The range of mobile phone signal jammers depends on your FM range. One set in a house of about 100 square meters is enough. Shenzhen Texin Electronics has a variety of jammers for you to find out.
The shielding range of the mobile phone signal jammer is based on the power of the jammer. If it is tested in the field according to the strength of the local environmental signal, the shielding range is different. For example, the weak shielding range of indoor signals is large. Outdoor use accessories have GSM base stations. So the GSM signal is close to the outdoor shielding range!
Theoretical analysis shows that when the mobile phone signal jammer is working, if the transmission power is too large due to improper setting, in a small confined space such as meeting rooms and classrooms, electromagnetic waves are superimposed in a small space and pass through the walls that are originally separated from the outside. Multiple reflections from the ceiling and the ground will cause people in the room to be exposed to serious electromagnetic pollution. According to the survey, the college entrance examination and senior high school entrance examination are the occasions where mobile phone signal jammers are used most. In some examination rooms that use mobile phone signal jammers, some of the parties (inspectors of college entrance examination, candidates and teachers) are irritable and unable to concentrate. Individual candidates Even headache symptoms appear. Various signs indicate that if the transmission power of the mobile phone signal jammer is turned on too large, it will seriously affect the normal thinking of candidates in the examination room.
When you really need to use jammers, try to use low-power mobile phone signal jammers. If one can solve the problem, don't set up multiple ones. The lower the installation position, the better. Don't hang it above people's head, as this is very harmful to human health. The cell phone signal jammers that we set up during the county-level economic work conferences in the province are placed in the flowers on the floor of the conference room wall, which can achieve the shielding effect without affecting the beauty of the venue. It is the best of both worlds.