Mobile phones are popular and essential. The use of smartphones should be as smooth as possible everywhere-this is what users want. So why is anyone interested in disturbing mobile phones at all?
In certain rooms and certain events, using mobile phones is very annoying. For example, movie theater operators would be happy to be disturbed. Even teachers may not care if students cannot use smartphones in class. With the help of mobile phones, customers can quickly compare prices in stores-so there are good reasons to negotiate prices. Therefore, retail stores will benefit from in-store cell phone jammer.
In Germany, there are clear regulations: anyone who wants to use the frequency needs to be allocated. Mobile phone jammers emit radio waves to interfere with reception. Therefore, users of mobile phone jammers will need to allocate frequencies in accordance with the Telecommunications Act. In Germany, the sale of hand-held jammers is prohibited. In theory, you can build anything you want-just don't put it in operation. The competent authority is the Federal Network Administration. This will not only confiscate the equipment, but also impose a fine of up to 1,000 euros. If you use a cell phone jammer to obstruct emergency calls, the penalty may be more severe.
The state has a monopoly on radio frequencies, so jammers can also be used.