Comments on: 5 Things You Never Knew Your Cell Phone Could Do

By: bloggy1111

bloggy1111 — Mon, 19 Jul 2010 22:45:29 +0000

This will really help thanks burning the bacon

By: Tweets that mention 5 Things You Never Knew Your Cell Phone Could Do — burning the bacon with barrett -- Topsy.com

Wed, 07 Oct 2009 19:47:47 +0000

[...] This post was mentioned on Twitter by Robert Bob Watson. Robert Bob Watson said: Great tips Tweeps…RT @ARDELLd: 5 things you may not know your cell phone can do http://bit.ly/2lAHak #2 is very cool!] [...]

By: pathardy

pathardy — Sat, 25 Jul 2009 06:29:00 +0000

Everyone of these will help me–and I need it!!! Thanks

By: pathardy

pathardy — Sat, 25 Jul 2009 02:29:00 +0000

Everyone of these will help me–and I need it!!! Thanks

By: Linkables « Durias Delight

Linkables « Durias Delight — Sun, 28 Sep 2008 09:05:10 +0000

[...] 1. Ron Pai Music 2. Jesus Is My Friend 3. Portfolio Shoot 4. My Friend Charlie Is Going to Jail 5. 5 Things You Never Knew Your Cell Phone Could Do [...]

By: Phil Barrett

Phil Barrett — Wed, 24 Sep 2008 15:43:45 +0000

Check this out – a new phone by Sharp will allow you to unlock your car and start the engine!
http://www.reportonbusiness.com/servlet/story/RTGAM.20080924.wcarkey0924/BNStory/Business/home

By: kenny

kenny — Mon, 22 Sep 2008 14:41:24 +0000

WELL I WOULD HAVE TO SAY, THAT THE REMOTE AND PHONE BIT TO OPEN CAR DOES WORK

By: MARSHA

MARSHA — Sat, 20 Sep 2008 00:54:24 +0000

THE REMOTE AND CELL PHONE ENTRY DOES WORK I HAVE DID IT WITH TWO DIFFERENT CARS BOTH WERE NEWER MODELS

By: Bob A

Bob A — Thu, 28 Aug 2008 22:15:53 +0000

Your comment on Unlocking a car with a cellphone DOES NOT WORK. See: http://www.snopes.com/autos/techno/keyless.asp
Sorry to rain on your parade.

By: sasha

sasha — Fri, 23 May 2008 04:06:09 +0000

On-Star – it can alert emergency services you’ve been in an accident, it can unlock your car, it can even locate the nearest beer store to your current location – On-Star comes standard on many vehicles now and many people opt to add it to their cars.

But how does it work?

OnStar is a telematics service, a subscription-based communications, monitoring and tracking service provided by General Motors.

Telematics?

Telematics is the transmission of data communications between systems and devices; it is the integrated use of telecommunications and informatics, also known as ICT (Information and Communications Technology) Essentialy it is the science of sending, receiving and storing information via telecommunication devices – wireless meets computers.

Why doesn’t it work when we send the signal through our mobile phones?

OnStar unlocks the car by sending a cellular data signal to the car’s computer. An On-Star operator can unlock your car from miles away because the system allows them to locate the car and access its internal computer.

Remote door lock keychains work by emitting a low-power radio signal to a receiver in your car (at a frequency of about 300-400MHz). The signal is encrypted specifically to work with your vehicle and is very hard to duplicate. Cell phones use a higher-powered and higher-frequency radio signal (DMA and GSM typically operates at 850MHz and 1900MHz) compared to the remote door keychains. This means that although cell phones can transmit voice and data they cannot transmit other radio signals.

so until remote keyless entry is closer to the frequency of our voice (voice frequency ranges from 85-155Hz) we probably won’t be able to unlock our phones.