dojammer signal blocker

 In the information age, communication technology develops rapidly, and mobile phones have become an indispensable tool in people's daily work and life. However, the widespread use of mobile phones has also created some problems that cannot be ignored, mainly: 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...

 There are several ways to test the effectiveness of  cell phone jammers  in the examination room. Among them, the simplest and most effective method is to directly test the power, shielding range and other data of the signal jammer in the examination room through a spectrum analyzer. If you do not have professional electronic equipment, you can also use multiple mobile phones, walkie-talkies and other communication equipment with multiple frequency bands and different models to conduct field testing of mobile phone signal jammers in the examination room. This may be a method. During the test, you can prepare mobile phones of multiple brands and using different operators. After powering on, hold the mobile phone from the position of the signal jammer in the examination room to detect the effective radius of the jammer in sequence from near to far. As the distance between the mobile phone and the mobile phone signal jammer in the examination room becomes farther and farthe...

 We often encounter customers asking us questions: Can your products block cameras? I need to buy a  Wireless Signal Jammer  to block surveillance cameras. When we encounter such a question, we really can't give an answer immediately. We must first ask the customer: the target object you need to block, that is, the surveillance camera, how is the signal transmitted between it and the main control end of the surveillance system? ? That is to say, it is necessary to understand whether the signal is transmitted through the video cable or the wireless signal is transmitted through wireless communication technology. So the customer's question came up: Can the wifi signal jammer block the monitoring transmitted through the cable? The answer to this question is very clear: the wifi signal jammer can only be used to shield wireless signals and does not work for wired cable transmission. Only audio and video signals and surveillance cameras that use wireless transmission will be e...

 All customers who have purchased a wireless  signal blockers  are very concerned about the actual shielding effect of the shielding device when they perform a power-on test after receiving the product. Different customers must have differences due to the testing environment, testing methods and testing times. The cell phones used are also different, so the test results fed back will be greatly different. The placement or installation location of shielding equipment is also a key factor affecting the shielding effect. Then the question arises, if the wireless signal jammer is placed directly on the ground, how effective will it be? 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 f...

 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 op...

 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...

  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. 2. there are different types of GPS Signal Jammers. 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...