dojammer signal blocker

 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...

  Instructions for use of 5G high-power cell phone signal blocker system: 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 s...