Many people have trouble choosing a cell phone signal jammer. They don’t know how to choose a suitable cell phone signal jammer. topsignaljamme recommends that you explain to the jammer manufacturer the application site where you want to buy the jammer, as well as the size of the shielding range. Another important point is whether there are any signal towers built by operators within a radius of 500 meters. These will affect the choice of jammer. type. The editor below will introduce to you several aspects that you need to pay attention to when choosing a mobile phone signal jammer.
Cell phone signal jammers are divided into the following categories according to the blocking range and the port number data used:
The first type: How long can the jammer shield?
It is not only related to its own signal strength, but also related to the distance between the base stations in the application environment (base stations are not limited to large signal transmission towers built on the ground, but also have signal amplification antennas on the roof and some built in the building. Signal amplification is everywhere), and another important factor is the obstacle. If it is a metal material, it will be blocked immediately; if it is a concrete load-bearing wall, the loss will be at least 10 times after passing through.
The second type: magnetic field signal level
When the magnetic field is weak, 2. Install one in five classrooms. If a row of 10 classrooms is installed in the past, three classrooms can be installed in the corridor; when the magnetic field is strong, there is a base station within 500 meters, a base station within 300 meters, a base station within 200 meters, and a base station within 100 meters. , there is a base station on the roof. As long as it depends on the situation, the stronger the magnetic field, the larger the anchor point of the signal jammer on the mobile phone.
The third type: within a small range of 0-10 meters
The total area is within 120 square meters. Signal jammers for sale are on low-power cell phones. The shielding effect is different depending on the distance between the site and the base station. The shielding range is mainly determined by the height of the magnetic field. Signal jammers for handheld 4- and 6-end mobile phones are highly recommended. Low-power shielding will weaken the signal when passing through the wall. If necessary, it is not recommended to buy a low-power one.
The fourth type: There is no base station within 1 kilometer.
Within 120 square meters, one unit is enough. It is highly recommended to install two units for 120-250 square meters. For large and medium-sized conference halls, it is recommended to install one unit within 150 square meters, two units within 250 square meters, and four units within 600 square meters. Installing more than 3 units in an area will produce a honeycomb shielding effect.
Therefore, when installing a mobile phone signal jammer, you must first understand your surrounding environment and the area used, and then decide on the type of mobile phone signal jammer to purchase.