Can You Unlock Your Car Door with a Cell Phone? Urban Legends

29 Янв 2015 | Author: | No comments yet »
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Unlock Your Car Door a Cell Phone

Netlore Locked out of your automobile? to this forwarded email, you can someone transmit a signal your spare remote key via phone and unlock your car in a pinch.

Circulating since: 2004

Status: False details below)


contributed by Amanda, July 19,

Subject: Unlock your car the outside!

This only applies to that can be unlocked by remote Should you lock your in the car and the spare keys are home.

If one has access to the spare remote them telephone you on your phone.

Your car will I tried it and it works. Saves from having to drive keys to you. Distance is no

Analysis: Comforting though it may be to you can unlock your car door in an by receiving a distant signal via cell phone, it can’t work #151; not with the as it presently stands, at any rate.

Here’s why:

Your car key operates by sending a weak, radio signal to a receiver the automobile, which in turn the door locks.

Since the works on radio waves, not the only conceivable way a signal your spare remote be picked up by one cell phone and to your car’s onboard by another would be if both were capable of sending and at exactly the same frequency as the itself #151; which can’t be, given that all entry devices operate at between 300 and 500 MHz, while all phones, by law, operate at 800 MHz and

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It’s apples vs. oranges, in words. Your cell can no more transmit the type of needed to unlock a car door your remote key is capable of up your Aunt Mary. no one can predict what miracles the may bring.


03/14/07 Asked by WPVI-TV News using cell phones to unlock a car door would Drexel engineering professor Eisenstein answers, That’s an legend, that’s not true.

04/01/07 — Marcus head of product marketing and sales for Nokia. fields a of common cell phone for the International Herald Tribune . Of the that cell phones can be to unlock car doors, the article That is surely another the phone makers should invented #151; except the remote opening systems for work on radio waves, cannot be transmitted over a

02/13/08 — The Discovery Mythbusters tried #151; and #151; to unlock a car door a remote signal transmitted via phone in a video posted in 2008. Myth busted .

05/02/08 — WXPI-TV’s Erdos tries the cell trick and finds it doesn’t Pradeep Khosla, dean of and the CERT center at CMU. surprised. The remote on a car door on a radio frequency, he says. If from other side on the remote, what the cell will transmit is an audio The car will not recognize it. It’s the frequency.

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