What you don't know about full-band jammers
With the popularization of mobile phones, various confidential meetings, standardized tests, prisons, and detention centers have greatly increased the demand for full-band jammers. Therefore, full-band jammers naturally have a broad market. However, most users do not know enough about full-band signal jammer, and often choose high-power jammers one-sidedly in order to achieve good results, which has many hidden dangers.
The principle of the full-band jammer is to transmit interference signals through broadband to interfere with the downlink signal of the mobile phone, so that the mobile phone cannot be used normally. This is a signal transmitter in itself and naturally radiates. The current shielded transmission power ranges from 1W to 500W, compared with the maximum transmission power of GSM mobile phones is 2W, and the maximum transmission power of GSM macro base stations is 20W to 40W.
Generally speaking, for general examinations and small meetings, choosing a full-band jammer with a transmission power of 2W-10W can achieve good results. However, according to the survey of major schools and important meeting places, many places pursue high-power shielding one-sidedly. For example, in a classroom with more than 20 classrooms, each classroom has a full-band jammer, and 50W transmission power is selected. After the inspection, due to lack of attention to use and lack of intelligent unified management, it often occurred that a small amount of shielding was not closed in time, and it continued to launch for several weeks. It will cause a long time in the range of high-power transmission. Therefore, I hereby strongly appeal to all units using full-band jammers:
(1) Don't blindly choose high power shielding. For a classroom, choosing a low-power full-band jammer is enough to achieve the shielding effect.
(2) Turn off the shield in time after use to avoid continuous radiation.
(3) Be sure to choose a full-band jammer produced by a regular manufacturer. The quality is guaranteed, the technology is qualified, the products are complete, and the machines with different power are used in different places. There are relevant test reports, and the radiation is within the safe range.
(4) passive and active
Full-band jammers can be divided into passive and active. Passive jammers are devices that passively receive and retransmit radio signals. Active jammers jam other devices by generating their own radio signals. Active jammers are generally more effective, but also easier to detect and track.
(5) Purpose
Full-band jammers can be used for a variety of purposes, such as preventing eavesdropping, jamming illegal communications, preventing electronic equipment from leaking information, and being used in war and special missions. However, their potential for misuse and harm has also led to increased regulation and regulation of full-band jammers by governments around the world.
(6) As an attack tool
Full-band jammers can also be used as attack tools. For example, in a cyber attack, an attacker could use a full-band jammer to jam a victim's WiFi signal, preventing them from accessing the internet. In addition, in military operations, the enemy can use full-band jammers to interfere with our communications and radar equipment.
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