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Many customers hope that the 5G signal jammer they purchase has the function of penetrating walls. They even hope that the 5G signal jammer can directly penetrate the interference signal through two walls and still maintain sufficient strength. So, can such expectations be realized?

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.

It is a key device that has been frequently used in major examination rooms recently. I believe many people should know the true function of this device. It is a key device that has been vigorously promoted in school examinations and can effectively eliminate and prevent candidates from cheating. , that is today’s protagonist: cell phone signal jammer.

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.

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.

• The GPS positioning and navigation system only requires a GPS signal jammer.
• Dual-mode navigation: network positioning (mobile phone signal positioning) navigation + GPS navigation. For this kind of navigation you need GSM GPS jammer.
• Network positioning (mobile phone signal positioning) navigation. For this you need a gsm jammer.
• 4. COMPASS system, GLONASS system and Galileo system.

234 These three systems are rarely used in civilian applications.

GPS devices all require a phone card. The current location information calculated by the GPS module is uploaded to the positioning server by the communication base station through this card for user query. The jammer uses radio electromagnetic waves to interfere with the connection between the card and the communication base station to achieve The GPS location cannot be queried by the user.

• 1. For the HA-1000H high-power cell phone blocker, first confirm the location of the communication base station, find a high point and fix the output port of the machine downward (to prevent rain), and fix the antenna on the top or sides of the machine with poles. Turn your back or side to the base station and let the front face toward the area that needs shielding (the antenna emission angle is 65° horizontally and 13° vertically). The antenna must not face the base station, otherwise it will interfere with the base station and affect the shielding effect;
• 2. Connect each antenna input port to the six signal output ports of the host through a half cable feeder, connect one end of the power cord to the aviation interface to the machine power input port, and the other end of the power cord to the 220V power socket;
• 3. Turn on the power switch on the inner panel of the host chassis and the machine will start working. After the machine starts working, lock the chassis to prevent anyone from turning on or off the machine at will;
• 4. If you need to shield the entire building, the machine needs to be installed at a high point about 20 meters away from the front or back of the building. The installation height of the antenna should be slightly higher than the shielded building, so that it faces 10°-30° downwards. Emit interference signals.

• 1. The HA-1000H high-power cell phone signal blocker must not have the front of the antenna facing the base station or be blocked by obstacles around it, otherwise the shielding effect will be affected;
• 2. Before turning on the computer, be sure to connect the antenna and the output port of the host one by one before starting the computer. Otherwise, the host will be damaged.
• 3. When the equipment is working, avoid long-term human contact within 10 meters directly in front of the antenna.

Recently, we have often received inquiries from some customers who want to buy a suitable wireless signal jammer from us. The purpose is also very clear, which is to block surveillance cameras. Usually when we encounter such a demand, we will directly refuse it. . So the question is, can’t the wireless signal jammer we produce block surveillance cameras?
Here, as a professional manufacturer of wireless signal jammers, we first make a statement: If you want to use the wireless signal jammers produced by our company for illegal activities or non-faithful purposes, we are firmly opposed and refuse to sell them. Therefore, when some customers consult us about wireless signal jammers and ask questions about some actual usage purposes and functional requirements, the customer's responses are obviously slow or deliberately concealing, and we will quickly become vigilant about this.

Customers in the purchase of cell phone signal jammer equipment, generally as long as no special instructions, the manufacturer's default factory band, is not included in the GPS positioning signal shielding module, but if the customer in the order of shielding equipment, very clearly put forward the requirements: the need to shield all the mobile phone signal lamps at the same time, can be able to shield the GPS positioning signals, then the manufacturer can be targeted to GPS frequency band shielding module to be added to the equipment. Shielding module to add to the equipment.

Why is there no GPS band in the default configuration of the low-power mobile phone signal jammer instrument? There are three main reasons: the first reason is that the low-power mobile phone signal jammer equipment is almost always used in fixed indoor environments, indoor environments in the GPS signal itself is very weak, or even there is no GPS signal, GPS signal shielding function will not come in handy. The second reason is that the primary purpose of the low-power type of mobile phone signal shielding instrument is to shield mobile phone signals, in order to reflect as much as possible for the shielding performance of mobile phone signals, manufacturers preferred solution is: the number of effective signal shielding module, as much as possible to the allocation of mobile phone signal band. The third reason is that the mobile phone signal shielding instrument manufacturers in order to control production costs, if a function is not a customer requirement must have, that less installed a module, after all, can reduce some production costs, you can enhance some of the mobile phone signal shielding instrument selling price advantage.

However, it should be reminded that: today's GPS positioning signals, it is only a general term, does not specifically refer to the United States of America's GPS navigation satellite signals, in fact, should at least include China's Beidou, Europe's Galileo, Russia's GLONASS, etc., these multiple countries and types of satellite navigation and positioning systems, in the increase of GPS signal shielding module, should be all can be effectively covered.

In the procurement of portable cell phone signal jammer, some customers are very enthusiastic to put the shielding equipment into the actual task very quickly, but also sometimes feedback back some information: the shielding signal coverage is a little on the small side. And after replacing the different working environment, feel the shielding distance of the shielding signal, some scenes will be larger, while some scenes are smaller, ask us what's going on?

First of all, the portable signal jammer itself is a fixed transmitter power. That is, the strength of the shielding signal it emits is relatively stable, will not be big or small, different environments, there will be several factors affecting the coverage of the shielding signal, such as: the proximity of the base station, the error of the building or wall obstacles, etc., which will have a direct impact on the shielding signal of the effective shielding distance.

Secondly, the placement of the portable cell phone signal jammer is also more critical. Because of its main chassis height of about 70cm, its antenna is screwed directly to the main chassis, that is to say, if the portable cell phone signal shield is placed directly on the ground, then its transmitter antenna height from the ground is generally not more than 1 meter. To enhance the coverage of the shielding signal, the simplest way is to increase the height of the antenna from the ground, when the height of the antenna increases, the effective shielding distance of the shielding signal will be greatly increased.

So, what is the height of increasing the antenna? We suggest that the user should first observe the terrain and terrain at the scene, and try to choose the position of the highest point to place the portable cell phone signal shield. Or use some desktop, steps or buildings, etc., try to use the portable cell phone signal shield to increase the height by using these positions.

There is another way: you can choose our company's antenna bracket, the portable cell phone signal shielding antenna and the host through the 3-meter feeder cable for connection, the antenna is mounted on the bracket, our customized antenna bracket, you can support the antenna up to a height of 3 meters.