If this signal blocker could just give us one sweet nap on the train, free of cellphone yelling, it would be well worth its $48.31 price. [Dealextreme] ...

If successful in real-world testing, the technology would make electronic warfare less of blunt instrument and more of a ...

More than 700,000 vehicles were broken into last year - often with the help of high-tech electronic devices, including so-called signal jammers, which are thought to play a part in four out of 10 ...

The Next-Generation Jammer, or NGJ, consists of two 15-foot long PODs beneath the EA-18G Growler aircraft designed to emit radar-jamming electronic signals; one jammer goes on each side of the ...

• Get an RFID blocker: This kind of signal stealing isn't just a problem for car key fobs. Newer passports and other identification contain radio frequency identification chips.

There are a few easy ways to block criminals' amplified signals. You can buy a signal-blocking pouch that can hold your keys, like a shielded RFID blocking pouch. 1. Stick in the fridge.

Published September 5, 2012 Two Texas prisons that have had serious problems with cellphones being smuggled to inmates are getting a system to block phone calls coming from inside the lockups.