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Extend Keyfob range?

Old Mar 20, 2004 | 12:45 AM
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Extend Keyfob range?

Is there any way to increase remote range for out cars? Anyone know where theres an intenna or somthing I can try extending?
Old Mar 20, 2004 | 02:31 AM
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You have the right idea. There are only 2 ways to extend the range, either get a better antenna/improve the old one or more power on the transmitter. (This is from my old amateur radio days)

Finding the receiver antenna in the car and improving it would probably be the easiest and cheapest. The FSM should have the location, then its just a matter of finding out the frequency and making an antenna with higher gain.

It would be a lot easier if someone has done it previously but you may have to pioneer on your own.

btw I have done this on my portable telephone and it works quite well.
Old Mar 20, 2004 | 05:48 AM
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Just push your keyfob onto your chin.....You'll have greater range than you would normally, uses your body as an antenna and it's free!!
Old Mar 20, 2004 | 05:52 AM
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if ur keyfob sux, get a ricefob




j/k :P i had remote range problem awhile ago actually...it turned out that my battery in my remote was dying. after a new battery was replaced, my remote range got better =)
Old Mar 20, 2004 | 05:52 AM
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Originally Posted by 97maxrob
Just push your keyfob onto your chin.....You'll have greater range than you would normally, uses your body as an antenna and it's free!!

That is what I doo. I still have the factory batt, so it does not go far w/o me.

When it was new it would go about 100-150 feet.
Old Mar 20, 2004 | 02:52 PM
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Ive heard of that chin thing but never tried it, my battery is fine, im just used to my other cars aftermarket alarm with like 3 times the range of my maxima.
Old Mar 20, 2004 | 03:17 PM
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I figured you had tried the chin thing so I never even bothered with that. However increasing antenna gain is the cheapest/best alternative.
Old Mar 20, 2004 | 10:04 PM
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i have tons of internal anntenna for cell phones laying aorund. hahahaha
"it is like adding a 4 foot antenna to your phone"!!!
Old Mar 20, 2004 | 10:16 PM
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the chin thing works for me--- though it makes me wonder why...
Old Mar 20, 2004 | 10:50 PM
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Originally Posted by Maxima99SEbose
the chin thing works for me--- though it makes me wonder why...
The fluid in your body acts as a conductor for the radio signal's transmission to be "boosted" (for a lack of better words). Like when the radio reception of a boombox suxks, then you touch the antenna and viola! It's clearer. The underside of your chin is a nice fleshy part of your body and is the highest part where there is alot of fluid and little bone, hence the RF signal from the keyfod to the car is increased your clicker's "reception" is better.


I am such a geek...
Old Mar 21, 2004 | 12:45 AM
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That's makes some sense but, the microchip or whatever inside the keychain isn't directly touching you, doesnt the plastic make a difference?

ALSO... If this does work, It can only increase the output range of the keyfob. Does this mean that range is limited more by the actual keychain?

Thanks...
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