If you are reading the specifications and revised versions of the different blockers, you may have realized that there are three main specifications: frequency, operating radius, and battery life. Each signal jammer device supports a different frequency and can block the signal within a given radius. You should know that many manufacturers specify a certain working radius, but in many cases, the working radius of the device is smaller than the radius shown in the specification table.
You might ask yourself, "Why do manufacturers lie about this specification?" The truth is they didn't lie. The manufacture of its products also includes testing, and every device is tested. However, in this case, it is important that companies test their jammers in open areas that are not obstructed by buildings, cars, and other objects. This means your working radius is very good, but it becomes smaller when used in the city.
Sterling will meet with colleagues from Arizona, California, and Tennessee in Washington to discuss how to use a cell phone blocker to take powerful action on a cell phone. Officials said the phones were used by prisoners to plan crime and violence. Federal agencies can be in trouble, even if they haven't done so in the past. A few weeks ago, the US Prison Administration tested jamming technology at a plant in Maryland. They told the Associated Press that they hope the demonstration will lead more organizations to use the technology.