Prison is a special place, these places are to install mobile phone jammers, so what should be paid attention to when installing jammers in prisons?
Jammer-MartNovember 2020
In recent years, prisons, labor camps, and detention centers across the country have invested funds to build or rebuild cell phone jammer systems. It is hoped that illegal use of mobile phones will be eliminated, mobile phone management in supervision sites will be strengthened, and supervision work will be carried out smoothly.
1. Act on all current domestic public communication standard mobile phones CDMA, GSM, DCS, PHS, 3G (CDMA2000/TD-SCDMA/WCDMA), and shall not affect the normal operation of other electronic equipment systems in the prison;
2. Within the scope of the prison (including but not limited to the prison room, walkway, corridor, window, etc.), the effective shielding rate should reach 99.9% or more;
3. In the production area, the effective shielding rate should reach 99% or more;
4. In confined narrow spaces (including but not limited to conversation rooms, storage rooms, toilets, etc.) and more hidden places with greater possibility of violations, the effective shielding rate should reach 99.9% or more;
5. Non-shielded areas (including but not limited to administrative buildings, armed police buildings and surrounding units or residential areas, etc.) must ensure smooth communication;
6. After the shielding effect is achieved, it must pass the shielding site electromagnetic radiation safety test;
7. Fully retain equipment output redundancy, increase service life and adapt to future development requirements;
In recent years, prisons, labor camps, and detention centers across the country have invested funds to build or rebuild cell phone jammer systems. It is hoped that illegal use of mobile phones will be eliminated, mobile phone management in supervision sites will be strengthened, and supervision work will be carried out smoothly.
1. Act on all current domestic public communication standard mobile phones CDMA, GSM, DCS, PHS, 3G (CDMA2000/TD-SCDMA/WCDMA), and shall not affect the normal operation of other electronic equipment systems in the prison;
2. Within the scope of the prison (including but not limited to the prison room, walkway, corridor, window, etc.), the effective shielding rate should reach 99.9% or more;
3. In the production area, the effective shielding rate should reach 99% or more;
4. In confined narrow spaces (including but not limited to conversation rooms, storage rooms, toilets, etc.) and more hidden places with greater possibility of violations, the effective shielding rate should reach 99.9% or more;
5. Non-shielded areas (including but not limited to administrative buildings, armed police buildings and surrounding units or residential areas, etc.) must ensure smooth communication;
6. After the shielding effect is achieved, it must pass the shielding site electromagnetic radiation safety test;
7. Fully retain equipment output redundancy, increase service life and adapt to future development requirements;
8. The system must use centralized power supply.