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Trick with Key Fob - You won't believe it! (Well I didn't)

Originally Posted by Brannisa Correct! And she wasn't even close to the car, she was probably 35 miles away. I always thought the key fobs sent some sort of signal

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Old 09-06-2010, 07:55 AM   #1 (permalink)
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Originally Posted by Brannisa View Post
Correct! And she wasn't even close to the car, she was probably 35 miles away.

I always thought the key fobs sent some sort of signal to the car but maybe its based on sound since it works through a cell phone.
The weird thing is that cell phones transmit a rather narrow audible frequency range, 200-3500 Hz. That means that it should only be passing signals that you can hear. How can this work with a transmitter that uses a radio frequency?
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Old 09-06-2010, 08:05 AM   #2 (permalink)
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I put my cell phone up to my ear and I heard people's voices.
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Old 09-06-2010, 08:28 AM   #3 (permalink)
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i put my cell phone up to my ear and i heard people's voices.
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