Cell Phone Jammers

 

GPS jammers are a simple tool that broadcasts noise interference on the radio frequency being used by the cell phone. While effective in many cases, it can be quite easy to get around cell phone jammer signals.

Faraday Cage

·  British scientist Michael Faraday invented the Faraday cage in 1836. It is an enclosed space lined with electroconductive material such as a brass or aluminum. The metal is grounded to earth so that any electromagnetic signals will be transferred by the metal to ground without affecting anything within the cage.

Build a Cell Phone Faraday Cage

·  Get two cardboard or wooden boxes. One box should be large enough to hold your cell phone and fit snugly in the other box. Cover the large box with aluminum foil. Attach a wire to the aluminum foil with an alligator clip on the other end. This clip attaches to an electrical socket ground or any metal plumbing fixture. Wrap plastic sheeting around the box to protect the foil from ripping. Leave one end unsealed. Place the cell phone in the small box and the small box in the large box. The aluminum foil will capture any cell phone signals and transfer them to ground via the pvc wire and wireless socket.

 

Jamming

·  When you jam a signal, you produce an obstruction between the sender and the recipient.GPS Jammers means masking the satellite transmissions before the navigational unit can locate them. The process is not that complex. The system that monitors the airwaves for signals fails to receive any even though broadcasting continues. They are still there, the unit just cannot find them. This prevents it from being able to determine a location.

·  Government agencies use cell phone jammers as a deterrent to terrorist activity. Terrorists have used cell phones as remote detonators for bombs on more than once occasion. The cell phones are planted near a bomb, which is set off when the terorrists make a call to the planted cell phone. The electromagnetic waves created ignite the bomb and set it off. This happened in May 2002 when Palestinian militants in Tel Aviv used a cell phone to detonate a bomb in a fuel truck headed for a fuel depot. Cell phone jammers block the transmission, which would create the electromagnetic waves necessary to detonate the bomb jiammers.