This new product a sat-nav jammer, and could render the most suitable technology for a pay-as-you-drive charging scheme useless.It costs £700 and plugs into a car’s cigar lighter socket.That might sound like good news but thieves could also use the gadget to foil certain GPS-based stolen car tracking devices!
How does it work? Trackers rely on sat-nav technology to log vehicle movements. This data is stored on a ‘black box’ in the car, then relayed to a monitoring station via mobile phone. The jammer stops both processes.It emits a frequency that blocks the signal from global positioning satellites. As a result, the black box can’t record movement data. The jammer unit also has a mobile phone blocker to stop the black box sending information back to its base.
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