This is transmitted to a second box.
Key fob relay box.
When your key fob signal is picked up it is transmitted to the box that s closer to your.
The relay boxes allow one person to stand near the home to pick up and amplify the key fob signal and then transmit it to the second box which the other person holds outside the door of a car.
The car replies with a request for authentication.
Key fob buttons may be easily programmed for relay on off toggle flash pulse momentary and time delay functions.
This signal is transmitted to the second thief stationed near the real key fob e g.
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One thief stands near your car with a relay box while an accomplice scans your house with another one.
For years automakers and hackers have known about a clever attack that spoofs the signal from a wireless car key fob to open a vehicle s doors and even drive it away.
Slightly modified from wikipedia in the above scenario.
The first thief sends a signal to a car impersonating a key fob.
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One popular method is the relay box technique which involves holding one box to the wall of a house so it can pick up the signal from an owner s key fob.
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Key fob relay controllers allow long range remote controlled switching using a hand held key fob.
In a restaurant or mall.
The kfx key fob receiver interface uses the linx technologies rxm 418 lr series key fobs and receivers for full fcc approval.