If you are using a more powerful cell phone jammer, the antenna should be located outside for better coverage and coverage. Another advantage of the adjustable unit is that it can be “turned down” to avoid getting stuck in adjacent areas. The range is different, but in most cases, the person who needs to make a call can simply walk out of the classroom and make the call without disturbing others. In an emergency or between two lectures, just turn off the device to immediately restore all signals. For simple cell phone jammer that make student mobile phones inoperable in small classrooms, too powerful jammers are not needed. In a small space, you can use a portable jammer that looks like an ordinary cell phone.
Throughout the weekend and Monday afternoon, “mobile jammer” was one of the 10 most searched searches in Google Trends. The search scope was for Lindsay Lohan’s “Saturday Night Live” images and news about the Super Tuesday primaries. The legality of mobile jammers varies from country to country. It is usually illegal to sell, own or use one in the United States without government permission. These devices can be sold on a few websites. Mislan, a former US Army communications officer, said law enforcement has “very specific concerns” about how criminals use cell phone jammers. He said that even a person who doesn’t want to do more but can only silence a pesky neighbor on the bus can cause harm.