The shielding range of 5G signal jammers varies depending on the power of the product. The high-power 5G signal jammers used in detention centers can reach hundreds of meters and are suitable for test sites. The low-power 5G signal jammers used in conference halls are generally between 1-10m, depending on the compressive strength of the surrounding signal communication base stations.  cell phone jammer

The shielding function of high-power 5G signal jammers (hundreds of W or even more than 1000W) is particularly powerful and is suitable for common places such as detention centers. However, due to the strong shielding working function, if it is close to residential areas, it will more or less endanger the normal mobile phone voice call requests of people around. Therefore, high-power 5G signal jammers are usually used in open areas away from residential areas.

The shielding radius of low-power 5G signal jammers (generally 12W-20W) is between 1-10 meters, and the instructions for use of some products are between 1-20 meters and 1-30 meters. The current upper limit is difficult to complete.

This is because the actual shielding effect of the jammer mainly depends on the size of the signal compressive strength at the site of use. If a university has established several signal communication base stations, and the mobile phone receives pulse signals ≥-70dbm, the detailed shielding of the jammer will be greatly shortened, and only 2.3 meters of spacing may be required.

If there are communication base stations on campus, and the mobile phone withstands pulse signals ≥-90dbm, then the shielding practice effect of the 5G signal jammer will be very good. There is no problem with shielding between 10 meters, and one jammer placed in the examination room is enough.