dojammer signal blocker

 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 farther, it is neces

 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 effecti

 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 first choice is