10 band cell phone signal jammersIf you’ve ever wondered what a phone jammer does, you’ve come to the right place. This article will discuss the most common types of jammers and how they work. The key to jamming a cell phone signal is the frequency. Different countries use different frequency bands for their mobile networks. The USA and Canada use the 1900 MHz band as their primary band, while Europe and Asia use the GSM 900 and 1800 bands. In some countries, local carriers have licensed the 450 MHz band for CDMA coverage.Using a cell phone jammer in these cases is illegal in the United States. It can result in fines, the seizure of illegal equipment, and criminal sanctions. However, it is legal to use a signal jammer in some countries and not in others. The cell phone industry strongly opposes the use of jammers, and has put money into educating people on proper cell phone etiquette.Basically, a cell phone signal jammer works by blocking the signals from cell phones. It does this by emitting a signal in the same frequency as a nearby cell phone. This signal creates strong interference, so when a person is within the range of a cell phone jammer, they’ll lose a signal and their phone will display a “bad reception” message. However, they can still make calls.