Comment 8TZY I can't say I understand this 100%


Keyless entry fobs result in rash of vehicle thefts


I can't say I understand this 100% (Score: 1)

by on 2015-05-11 16:49 (#8TZY)

Ok, the car sends constantly some kind of 'hello' signal. Usually it has a reach of 30cm. Fine. The amplifier increases signal tremendously... understood. But now the key has to 'answer'. And its signal is not amplifies. So how far away its signal can be detected by the car? And where is the problem to limit this reach to perhaps 1m? Then the thieves you need two amplifier... And a way to get close to the key without the owner noticing it.

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