Canadian advertiser Grip Limited recently proposed a new idea. This is a tie that can hijack your home WiFi signal and change its transmission path. After wearing the tie, only users who are 10 feet away from the wearer can successfully find the WiFi signal. Therefore, when the father puts it on, children who want to go online have no choice but to walk around him. Therefore, conceptually, this new technology is called TieFi (combination of tie and WiFi).
A few years ago, French researchers developed wallpapers that can shield mobile jammers and allow WiFi signals to be restricted to specific offices or departments. This can improve the security of WiFi. This shielding technology can only shield wireless LAN signals of specific frequencies, but cannot shield general electrostatic shielding, so both mobile phones and radio broadcast signals can pass. According to researchers, the price of this wallpaper is about the same as that of a traditional mid-range wallpaper, and it was launched in 2013. This wallpaper can not only prevent WiFi signals from being monitored, but also can be used in places where wifi jammer may occur. For example, you can use hospitals, hotels, theaters, etc. to prevent guests from trying to use external free WiFi signals to avoid payment. Of course, consumers who are sensitive to electromagnetic waves are also potential marketing target groups.
The radiation frequency of mobile phone signal jammers is the same as that of mobile phones, so their function is similar to jammers. This will cause enough interference to prevent the call from connecting to the phone. Currently, there are two types of cell phone jammers. The first category is usually small devices that prevent signals from being sent from cell phone towers to each cell phone. The blocking frequency is 800MHz to 1900MHz. Most devices using this technology can block signals within a 30-foot radius. The phones in this area do not display any signals.
Now, you can turn it off politely and leave, or you can buy a cell phone jammer and place it.
Unfortunately, they are becoming more and more important because many people (especially prison guards) want to believe that new technology products can solve their problems. A group of prison guards not only submitted a petition to the FCC to establish rules, but also supported a bill requiring the FCC to allow the use of mobile phones in prisons.
In the four churches in Monterrey, an Israeli paper-backed paper cell phone jammer is hidden between a painting similar to Madonna and an icon.
Japan allows GPS jammers to be installed in public places such as theaters and concert halls, but only if you need a license issued by the government. Last week, the French Minister of Industry approved a decision requiring the establishment of cinemas, concert halls and theaters, provided that emergency calls can be arranged.