There's just been a piece on the One Show (BBC1 19:00 25/5/17) about thieves who use some clever electronics to amplify the signal between a car key fob. This makes the car believe that the key is close to the car thereby allowing the thieves to enter and start the car.
Just wondering whether some sort of Faraday cage contraption (to put the key fob in) might stop this crime? (Disclaimer, I last studied physics in 1975 (and then only to 'O' level) so I probably don't know what I'm talking about.)
I saw it too. My keyless car unlocks the door when the key is within 1 metre, but won't start unless the key is inside the vehicle. Don't know any other keyless owners, but I wonder if this is any protection from driving away.
Keys are kept well inside the house, not in the entrance hall. Again unsure how far away is safe.
They seem to target brand new cars, presumably for spares, as replacing the entire security system must cost, or does it?
Faraday cage seems good idea though.
I have remote unlock (nothing new there) but it doesn't unlock just by being near. It does however have keyless start (so did my dad's 1950s Ford Prefect), but once started it will stay running if I leave the car with the fob and it can be driven away without the fob being present.
Having watched the video Interesting that the method they are using is to boost (or retransmit..think repeat) the signal to fool the keyless system into thinking the key is closer to the car than it is.
The suggestion given was find a place where the key doesn't work from inside the home, but I think that is **** advice as if the signal is being repeated that is pointless.
Better to put keys in a metal box (perhaps a key box) to prevent RF by virtue of faraday cage.
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last edited by thatduct on 13-09-2019 11:38