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Use your chin to boost your car remote signal!
9:44 am
The Grid
Forum Posts: 979
Member Since:

I don't remember if I heard about this or just tried it randomly one day but it does indeed work! I was just out of signal range so I pressed to my chin and instantly it worked! Looked online to find some more info and found this. After I read it I tried pressing to my arm and it has the same effect. Cool stuff!

I think everybody has done it. You’re walking away after parking your car and you can’t remember if you locked it. You turn around to lock it and you’re too far away – or – maybe your car has remote start and you want to warm it before you leave work in the winter. You can see it in the parking lot, but you’re too far away.

There is something that may help.

If you push the car remote against your skin, and then press the button, your body will act like a giant antenna to extend the signal. I don’t know how safe this is, but it works.

I first heard about this a few years ago and I was in disbelief, until I tried it. Not only does it work, according to New Scientist, it can almost double the range of your key fob.
When I first heard abou
t it, I was told to push it against my chin. It turns out you can push it again your arms or other body parts too. It relies on a principle called capacitive coupling, the same principle that the capacitors on electronic circuit boards rely on.

This doesn’t work for all types of radio frequency remotes, it works best with relatively low frequency signals with rapidly changing currents, which is what many car remotes use.

You may have heard that the iPhone 4 is having signal issues when the exterior antenna is touched in a certain way and you may be wondering why it has the opposite affect on the iPhone. The difference between the iPhone problem and capacitive coupling is that there is no insulator between the transmitter and your body with the iPhone, but with your car remote, the plastic case acts like an insulator. Again, this is precisely how capacitors on circuit boards work — two conductors are separated by an insulator.

It should be noted that some car remotes may use a different frequencies and types of signals, so you’ll have to test yours to see if it works for you.
Big thanks to Max Surguy for reminding me about this one, such a great tip!

11:31 am
Forum Posts: 292
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This really works, I've been doing it for a long time too!

They've even tested it in a Myth Busters episode!

11:41 am
Forum Posts: 45
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Haha, I've never heard of this before, but it's pretty funny.


I can imagine some poor guy who lost his car holding the remote up to his face while strangers are all looking at him.  How far away do you really have to be for it to make a difference though?  I've never had trouble setting off my alarm.

11:59 am
The Grid
Forum Posts: 979
Member Since:

@Pedro really! Remember which season or episode? I'd like to watch that one.

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