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What problems can a cell phone signal jammer solve?

1. Mobile phones have become a new channel for leaking secrets. Cell phone jammers can provide necessary security protection for confidential information.

With the development of science and technology, the positioning, tracking and monitoring of mobile phones have become the most important reconnaissance means and intelligence sources for countries around the world. Therefore, as long as you carry a mobile phone in a confidential place, whether it is in use or not, as long as it is in standby mode, it is very likely to cause leakage of secrets, causing serious harm to units or individuals, and even to political parties and the country.

2. Mobile phones have become a new source of noise pollution, and mobile phone signal jammers can maintain the normal working order of the place. With the increasing popularity of mobile phones, the environment in conference rooms, courts, libraries, schools and other places has deteriorated. The noise generated by mobile phones has destroyed the quiet and serious atmosphere of these places and affected people's normal work.

3. Mobile phones have become a new unsafe factor. Mobile phone signal jammers can reduce hidden dangers caused by enterprise safety production. Using mobile phones in gas stations, gas stations, oil fields, oil depots, etc. may cause fires or explosions, and the consequences will be very serious.

4. Mobile phones have become a new means of crime, and mobile phone signal jammers can bring necessary help to social stability.

Some opportunistic people use mobile phones to cheat in exams, and some terrorists and hostile elements also use mobile phones to detonate bombs... Facts have shown that mobile phones have become a tool for criminals to commit crimes on some occasions, which has adversely affected social stability.

Dojammer's mobile phone signal jammer can effectively solve the above problems. As a new type of information security product, it uses electromagnetic signals of specific frequencies to form an electric fence in places that need to be protected, so that mobile phones cannot receive base station data and cannot establish contact with the base station, thereby eliminating the negative impact of mobile phones. Play a safety protection role.

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How effective is the wireless signal jammer when placed on the ground?

Usually when manufacturers of wireless signal jammers sell shielding equipment, there will be a detailed installation and use instructions in the packaging box. Let’s take the most common low-power wireless signal jammer used in indoor environments as an example. There should be special installation instructions in its instruction manual. The first choice is wall-mounted installation. It is recommended that users keep the installation height of the shielding device between 1.8 meters and 2.5 meters, because this height is exactly at a position where human hands cannot reach it, thus preventing future use. Some people will maliciously damage the shielding equipment or artificially cut off the power or shut down the equipment. At the same time, this installation height also exceeds the height of almost all furniture, tables, chairs, or other furnishings in the room. This allows the shielded signal of the cell phone signal jammer to be transmitted unimpeded, maximizing the coverage of the shielded signal to everyone in the room. corner.

If it is not convenient to wall-mount the device, but to place the cell phone jammer directly on the desktop, this can be regarded as a compromise method of use and is suitable for short-term, temporary use scenarios. Since the conventional desktop height is about 0.8 meters, if the wireless signal jammer is placed directly on the desktop, the shielded signal will be more or less affected by some furniture or furniture with a height of more than 1 meter during the transmission to the surroundings. The influence of obstacles will actually reduce the final shielding effect.

Finally, let’s analyze what will happen if the wireless signal jammer is placed directly on the ground: Unless the room is completely empty, tables, chairs or furniture in the room will become obstacles in the process of shielding signal transmission. , it will more or less attenuate the shielding signal, and this attenuation will be superimposed as the number of obstacles increases. This will seriously affect the shielding distance of the wireless signal jammer. Placing the shielding device on the ground for testing and use is the most undesirable way of use.

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Can the interference signal of the 5G signal jammer penetrate two walls continuously?

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This requires distinguishing the material of the wall. If the interference signal of the 5G signal blocker encounters a reinforced concrete wall in the transmission path, the interference signal will be almost completely attenuated and reflected. Behind such a wall, the reception The interference signal received from the 5G signal jammer will be very weak, even close to 0. If it encounters a second wall, the interfering signal will be completely attenuated. For example: If there are no mobile phone signal amplifiers installed in the elevator shaft and underground parking lot of the building, there will be no mobile phone signal at all in these two places, because the outdoor mobile phone operator's base station signal cannot penetrate the steel bars at all. Concrete wall.

Let’s look at some other strong materials. If the interference signal of the 5G signal jammer for sale is transmitted during the transmission process, it encounters walls made of wooden boards, or walls made of glass, ABS plastic, etc. These materials are not suitable for wireless signals. The attenuation effect of the 5G signal jammer is very limited. When the interference signal of the 5G signal jammer penetrates these materials, the signal strength error is very small. Even if there are two consecutive such walls, a strong interference signal can still be received.

Based on the above content, the issue of whether the interference signal of the 5G signal jammer can penetrate two walls has little to do with the 5G signal jammer itself, but should focus on the material properties of the wall.

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The impact of base stations on the shielding effect of cell phone signal jammers

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There are now less than 100 days left before the college entrance examination. All candidates taking the college entrance examination are concentrating on preparing for the college entrance examination and striving to achieve good results in the college entrance examination. At the same time, many schools are looking for a batch of higher-performance cell phone jammers to ensure stable order in the examination room, so that those who use illegal means to cheat have nowhere to hide, thereby improving the fairness of the college entrance examination for every candidate.

But what many people don't know is that there is such a device, which may have a serious impact on the effect of the cell phone signal jammer, that is to say, the shielding range. This is an issue that needs to be considered in every college entrance examination examination room in the school. What is this device? It is the operator's base station, commonly known as a signal tower, because if there is a base station near the examination room, it will affect the shielding effect of the cell phone signal jammer. Of course, this means that within a range of 500 meters near the examination room, the signal strength of the signal transmitted by the base station to the examination room will be very strong, so the shielding range of the cell phone signal jammer will become smaller. If the base station is 500 meters away from the examination room, the impact on the cell phone signal jammer will be very small. As for why it causes an impact, this is because when the base station itself transmits signals to the surroundings, it will carry strong electromagnetic signals. As the distance of the electromagnetic signals emitted by the base station increases, the field strength of the electromagnetic signals will also increase accordingly. Reduction, and the field strength of this electromagnetic signal is one of the most important fact

Therefore, in the examination room, before purchasing a cell phone signal jammer, you might as well do an actual test to determine the actual shielding range of the jammer, and then decide how many cell phone signal jammers are needed based on the actual test data. This is very important, otherwise some places will not be blocked. However, no matter whether the cell phone signal jammer will be affected or not, a cell phone signal jammer with superior performance and more professional is a must-have.

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Where are GPS jammers generally used - cell phone signal jammers

1. What is a GPS jammer?

The GPS signal jamming system is designed to suppress the signals of the global satellite navigation GPS system in the 1500-1600MHz range. Jammers make it impossible for GPS satellites to monitor the location of cars and all vehicles via GPS, and gps jammer devices will not interfere with cell phones and other devices. The GPS jammer range can be from 5 to 15 meters, which is enough for cars and buses as the trackers are usually installed in the cab inside the car. After initiating the connection via the car's cigarette lighter, the device starts working immediately and generates radio noise (interference) in the range 1500-1600 MHz (L1/L2) within a radius of 15 meters.

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Most signal jammers are used for national defense, shielding the locked position information of GPS cruise missiles or bombs placed by opponents to accurately strike.