Signal jammer try to interrupt communication signals of different frequencies, thereby preventing many wireless devices from communicating normally. Due to the noise saturation in the frequency, jammers can ignore systems that use 3G mobile phone networks, Bluetooth, GPS, radar or infrared readers.
Under Spanish law, the use of these devices is not allowed, because many people abuse these devices and the consequences can be serious. For some time, in order to prevent radar fines, frequency jammers were illegally installed in vehicles because their range did not allow detection of vehicles exceeding authorized speeds.
Another use commonly found by law enforcement and security companies is to use jammers to block alarm systems installed in homes and businesses. This allows criminals to enter and commit any type of crime, while the security system cannot act normally.
