How a Cell Phone Blocker Works

How a Cell Phone Blocker Works

There are cell phone blocker pouches on the market that work on the principals of a Faraday cage – essentially preventing the signal mobile phone blockerfrom reaching the phone via a form of antenna that creates electromagnetic interference. But then there are cell phone blocker devices which send out ‘white noise’ that collides with signals on the frequency and prevents the propagation of the signal between the handset and cell tower.
These cell phone blockers are, in may countries, of questionable legal status when used by those outside the military and law enforcement communities.

Use and Deployment of Mobile Cell Phone Jammers