Can you do this with an E60?
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Originally Posted by merklebob' post='270759' date='Apr 18 2006, 01:27 PM
several, myself include have tried it and it does work.
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Originally Posted by Dickens' post='270677' date='Apr 18 2006, 07:05 PM
Since both remote entry batteries are dead on my current car, I cannot try at the moment. I'm not really concerned if I can do it on my current vehicle anyway. My coworker swears this is true story BTW* , so hold on to your seats.
One day we're in the office and my coworker, we'll call her Martha Kaclackin, comes up with this crazy story about accessing her vehicle after locking her keys in the car. She tells me "I was at the mall the other day and locked myself out of the car". She says she then phoned up her husband via cell, so that he may come to the rescue. Mr Kaclackin too busy watching the game, told her to "point the cell phone at the car honey". He then points the remote from his keychain at the phone he's using at home. She does what he says, and instantly the lights flash, and a click is heard. She said she hopped in her car and drove home.
Has anyone ever heard of such a thing? And even so, will this be possible with the new E60?
I remember reading a couple of years back that (can't remember brand of car Merc or Bimmer) The engine changes the security code each time its started via a signal transmitted by the key. Apparently it was some form of security system built into the engine. If the statement is true would this affect the ability to unlock the car via the phone as my friend claims she and her hubby did?
There is a similar link about locking the keys in the car, I felt this was different, hence the starting of a new post. I did provide the link anyway.
http://forums.e60.net/index.php?showtopic=19372
*BTW = By The Way
Lastly, anyone want to be the class guinea pig?
Dick
One day we're in the office and my coworker, we'll call her Martha Kaclackin, comes up with this crazy story about accessing her vehicle after locking her keys in the car. She tells me "I was at the mall the other day and locked myself out of the car". She says she then phoned up her husband via cell, so that he may come to the rescue. Mr Kaclackin too busy watching the game, told her to "point the cell phone at the car honey". He then points the remote from his keychain at the phone he's using at home. She does what he says, and instantly the lights flash, and a click is heard. She said she hopped in her car and drove home.
Has anyone ever heard of such a thing? And even so, will this be possible with the new E60?
I remember reading a couple of years back that (can't remember brand of car Merc or Bimmer) The engine changes the security code each time its started via a signal transmitted by the key. Apparently it was some form of security system built into the engine. If the statement is true would this affect the ability to unlock the car via the phone as my friend claims she and her hubby did?
There is a similar link about locking the keys in the car, I felt this was different, hence the starting of a new post. I did provide the link anyway.
http://forums.e60.net/index.php?showtopic=19372
*BTW = By The Way
Lastly, anyone want to be the class guinea pig?
Dick
Ive tried it with my last 3 Beemer and it works great.
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Originally Posted by jsal' post='270823' date='Apr 18 2006, 06:26 PM
I don't see how it can work. The remotes are radio based and the cell phone transmits sound, not radio frequencies.
....heres a good read on how it really works
![Thumbsup](https://5series.net/forums/images/smilies/imported/thumbsup.gif)
Let's start with the basics: In essence, a cell phone is a radio.
The Cell Approach
One of the most interesting things about a cell phone is that it is actually a radio -- an extremely sophisticated radio, but a radio nonetheless. The telephone was invented by Alexander Graham Bell in 1876, and wireless communication can trace its roots to the invention of the radio by Nikolai Tesla in the 1880s (formally presented in 1894 by a young Italian named Guglielmo Marconi). It was only natural that these two great technologies would eventually be combined.
In the dark ages before cell phones, people who really needed mobile-communications ability installed radio telephones in their cars. In the radio-telephone system, there was one central antenna tower per city, and perhaps 25 channels available on that tower. This central antenna meant that the phone in your car needed a powerful transmitter -- big enough to transmit 40 or 50 miles (about 70 km). It also meant that not many people could use radio telephones -- there just were not enough channels.
The genius of the cellular system is the division of a city into small cells. This allows extensive frequency reuse across a city, so that millions of people can use cell phones simultaneously.
Cell Phones and CBs
A good way to understand the sophistication of a cell phone is to compare it to a CB radio or a walkie-talkie.
Full-duplex vs. half-duplex - Both walkie-talkies and CB radios are half-duplex devices. That is, two people communicating on a CB radio use the same frequency, so only one person can talk at a time. A cell phone is a full-duplex device. That means that you use one frequency for talking and a second, separate frequency for listening. Both people on the call can talk at once.
Channels - A walkie-talkie typically has one channel, and a CB radio has 40 channels. A typical cell phone can communicate on 1,664 channels or more!
Range - A walkie-talkie can transmit about 1 mile (1.6 km) using a 0.25-watt transmitter. A CB radio, because it has much higher power, can transmit about 5 miles (8 km) using a 5-watt transmitter. Cell phones operate within cells, and they can switch cells as they move around. Cells give cell phones incredible range. Someone using a cell phone can drive hundreds of miles and maintain a conversation the entire time because of the cellular approach.
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Originally Posted by m630' post='270836' date='Apr 18 2006, 07:04 PM
though i dont think it should work with the security codes, it is certainly possible for transmission....a cell phone is actually a radio transmitter/receiver, how do you think the signal goes back and forth???
....heres a good read on how it really works
Let's start with the basics: In essence, a cell phone is a radio.
The Cell Approach
One of the most interesting things about a cell phone is that it is actually a radio -- an extremely sophisticated radio, but a radio nonetheless. The telephone was invented by Alexander Graham Bell in 1876, and wireless communication can trace its roots to the invention of the radio by Nikolai Tesla in the 1880s (formally presented in 1894 by a young Italian named Guglielmo Marconi). It was only natural that these two great technologies would eventually be combined.
In the dark ages before cell phones, people who really needed mobile-communications ability installed radio telephones in their cars. In the radio-telephone system, there was one central antenna tower per city, and perhaps 25 channels available on that tower. This central antenna meant that the phone in your car needed a powerful transmitter -- big enough to transmit 40 or 50 miles (about 70 km). It also meant that not many people could use radio telephones -- there just were not enough channels.
The genius of the cellular system is the division of a city into small cells. This allows extensive frequency reuse across a city, so that millions of people can use cell phones simultaneously.
Cell Phones and CBs
A good way to understand the sophistication of a cell phone is to compare it to a CB radio or a walkie-talkie.
Full-duplex vs. half-duplex - Both walkie-talkies and CB radios are half-duplex devices. That is, two people communicating on a CB radio use the same frequency, so only one person can talk at a time. A cell phone is a full-duplex device. That means that you use one frequency for talking and a second, separate frequency for listening. Both people on the call can talk at once.
Channels - A walkie-talkie typically has one channel, and a CB radio has 40 channels. A typical cell phone can communicate on 1,664 channels or more!
Range - A walkie-talkie can transmit about 1 mile (1.6 km) using a 0.25-watt transmitter. A CB radio, because it has much higher power, can transmit about 5 miles (8 km) using a 5-watt transmitter. Cell phones operate within cells, and they can switch cells as they move around. Cells give cell phones incredible range. Someone using a cell phone can drive hundreds of miles and maintain a conversation the entire time because of the cellular approach.![W00t](https://5series.net/forums/images/smilies/imported/w00t.gif)
....heres a good read on how it really works
![Thumbsup](https://5series.net/forums/images/smilies/imported/thumbsup.gif)
Let's start with the basics: In essence, a cell phone is a radio.
The Cell Approach
One of the most interesting things about a cell phone is that it is actually a radio -- an extremely sophisticated radio, but a radio nonetheless. The telephone was invented by Alexander Graham Bell in 1876, and wireless communication can trace its roots to the invention of the radio by Nikolai Tesla in the 1880s (formally presented in 1894 by a young Italian named Guglielmo Marconi). It was only natural that these two great technologies would eventually be combined.
In the dark ages before cell phones, people who really needed mobile-communications ability installed radio telephones in their cars. In the radio-telephone system, there was one central antenna tower per city, and perhaps 25 channels available on that tower. This central antenna meant that the phone in your car needed a powerful transmitter -- big enough to transmit 40 or 50 miles (about 70 km). It also meant that not many people could use radio telephones -- there just were not enough channels.
The genius of the cellular system is the division of a city into small cells. This allows extensive frequency reuse across a city, so that millions of people can use cell phones simultaneously.
Cell Phones and CBs
A good way to understand the sophistication of a cell phone is to compare it to a CB radio or a walkie-talkie.
Full-duplex vs. half-duplex - Both walkie-talkies and CB radios are half-duplex devices. That is, two people communicating on a CB radio use the same frequency, so only one person can talk at a time. A cell phone is a full-duplex device. That means that you use one frequency for talking and a second, separate frequency for listening. Both people on the call can talk at once.
Channels - A walkie-talkie typically has one channel, and a CB radio has 40 channels. A typical cell phone can communicate on 1,664 channels or more!
Range - A walkie-talkie can transmit about 1 mile (1.6 km) using a 0.25-watt transmitter. A CB radio, because it has much higher power, can transmit about 5 miles (8 km) using a 5-watt transmitter. Cell phones operate within cells, and they can switch cells as they move around. Cells give cell phones incredible range. Someone using a cell phone can drive hundreds of miles and maintain a conversation the entire time because of the cellular approach.
![W00t](https://5series.net/forums/images/smilies/imported/w00t.gif)
![Blink](https://5series.net/forums/images/smilies/imported/blink.gif)
For the record... I have 'walkie-talkie's' that transmit at 5w and the wattage has little to do with how far the signal will travel. CB's in the US operate at 4w and in AU it's ~40w for their UHF CB. How far a radio transmits depends on the frequency used and the height and type of antenna used.
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Originally Posted by ImolaRedM' post='270845' date='Apr 18 2006, 07:33 PM
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As ScottishBimmer said above, this is an urban legend (and an old one at that...)
http://www.breakthechain.org/exclusives/phonelocks.html
http://urbanlegends.about.com/librar...nlock_door.htm
http://www.truthminers.com/hoaxarticles/unlock.htm
http://www.snopes.com/autos/techno/keyless.asp
http://www.breakthechain.org/exclusives/phonelocks.html
http://urbanlegends.about.com/librar...nlock_door.htm
http://www.truthminers.com/hoaxarticles/unlock.htm
http://www.snopes.com/autos/techno/keyless.asp
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So this has been around forever, eh? But if there are people who have tried it and it actually worked could this possibly dispel the title as it being an "urban legend"?
Also, what about the key changing the security code to the engine to prevent "theftage".
Theftage is a term created by my Acct Prof. His funny away of saying how to account for stolen items.
Dick
Also, what about the key changing the security code to the engine to prevent "theftage".
Theftage is a term created by my Acct Prof. His funny away of saying how to account for stolen items.
Dick