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chuck
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Posted: Sun Nov 12, 2006 | 08:38 PM
Well I thought about this and what I have come down to is this...the fob transmitts RF your cell phone picks up an audio signal and converts it to a RF so I am not sure if it would wok I am trying to just be sensible and wonder if the Rf from my fob would be strong enough and would be able to "get to" the reciver part of the cell phone to transmitt it out to another phone...the air is compressed to make an audio sound to hit the diaphram in the mic to make it go back and forth to move it per sya and then this is converted to an electrical wave and sent out..just like our ears and brains do..but is this conversion part in a closed system? can the rf from the fob get past this audio conversion and get right to the recievr part of the phone?? Myth Buster guys could tell us or just do it yourself. |
miles
in deez nuts
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Posted: Fri Dec 01, 2006 | 06:42 PM
it works
i'm so angry right now
go try it wet blankets |
azure.
in south florida
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Posted: Mon Dec 04, 2006 | 08:48 AM
Miles, I'm sorry you are so mad. I just tried it last night. Cell to land line, and cell to cell. And it did not work. |
piefurz
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Posted: Tue Feb 20, 2007 | 10:16 PM
Very unlikely to work because electronic equipment is designed to block out interference. If you could disable noise filtering circuits you may have a chance of it working. I have picked up radio stations on a video camera which I heard thru an earpiece and saw a TV station image on my Sony digital still image camera preview screen. Very stong signals can get past filtering. I had a problem where a press box was picking up radio stations from nearby towers, strong signal and apparantly inadequate filtering. From the discussions I'm sure current cell phones don't use simple hetrdyning which would make this idea more possible. |
Monk E Shines
in your mom
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Posted: Mon Feb 26, 2007 | 05:51 PM
Alright, so I was skeptical at first, but then I did a thought experiment. It is quite conceivable for this to happen, and its rather simple.
First for all, I will admit a single farse in my logic as I'm not an expert on microphones. However, I must say that the assumption that an E-M wave will somehow magically NOT affect a coil/magnet is idiotic if you're somewhat educated in e-m theory.
Whilst I don't have the quantitative reasoning, I can give you a good qualitative approach: Assuming an apparatus of microphones that IS affected by e-m waves(which is about 99% of the mics out on the market). What the hell makes you think that a mic/speaker cannot produce RF signals? In fact, it is VERY much likely it can, and not only such, WILL transmit this signal across any form of digital network in the form of signal, NOT noise. It is up to the network to attempt to extract this 'noise', but I contend its able to pass with what is thought to be a signal.
Enough of the technobabble btw, it only shows you know a very narrow band of technology. |
Rob
in peoples republic of california
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Posted: Sun Mar 18, 2007 | 09:18 AM
More experimental results.
So the family is sitting around last night, and the mother in law shares this "really useful" email she got with all thes cell phone tricks in it. My brother in law and I are both engineering types, so we don't believe it of course.
He sends his wife yonder with the car opener and goes out to his car. Several minutes later he came back in saying that it absolutely worked. I said there's no way, let's get to work and figure this out. It was repeated before my very eyes several times, and I still could not believe it.
Experiment 1 -- verizon cell to verizon cell
Absolutely did not work. Then I questioned which phone was originally used as the sender initially. It was the house cordless phone. Ahh-haa I say.
Experiment 2 -- house wireless to verizon cell
Called the cell from the house wireless, but the cell phone was nowhere near the car. The car still opened and closed when activated near the house wireless. The car was not opened and closed when the opener was held an arms length distance away from the phone.
Experiment 3 -- house wireless calling 'Time'
Called 'time' from the house wireless. The car still opened and closed when activated near the house wireless.
Conclusions
The cell phone has nothing to do with it. The remote opening device signal is somehow boosted by the by the house wireless phone. It does not work for all vehicles. It worked with a ford truck and an exterra but not a honda civic. I'm sure it would stop working once we were out of range of the house wireless phone.
myth busted?
Rob |
Suzanne
in Orlando
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Posted: Sun Mar 18, 2007 | 06:08 PM
I got the same e-mail and My 8th grader is writing a speech about cell phones and we thought we would include it - myth or not. It didn't work for us - but a print out of this forum will be included in his bibliography. Thanks. |
tjamnz
in Seattle
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Posted: Thu Jul 05, 2007 | 03:14 PM
Cbs news reported this.. so they must have tried it out...
deal with it skeptics. Please
Who knows? It may not work with all phone and all carriers.
Until someone fully tests out all carriers and several phones.. from a range or more than a mile from the source. This concept cannot be truly criticized even if it didnt work for you.
Heres the CBS link...
http://uploads.atomfilms.com/Clip.aspx?key=6DB69393B558E3B0 |
tjamnz
in seattle
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Posted: Thu Jul 05, 2007 | 03:22 PM
Im hearing this works only with GSM networks. |
Dave
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Posted: Mon Aug 13, 2007 | 12:18 AM
Seems really unlikely, -but- as far as people saying that the "home phone" (or other) -only- picks up sound waves, they don't know squat. Any phone receiver will pick up RF signals.
As a matter of fact, any electronic device will pick up RF signals, and if that device is connect to any kind of amplifier those signals will be even more pronounced. |
Samsarai
Member
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Posted: Mon Dec 31, 2007 | 12:17 AM
Ok It worked for me, here's the data.
Distance: 200 yards
Variables: Transmiter inside a brick building
Control: Multiple attemps failed without cell phone.
Test 1: cell phone* connection made and the door to the Nissan Sentra was Unlocked
Test 2: The door was relocked
Test 3: a High End Digital Audio recorder was used to record the signal a replay it to the car.
This Failed, probably due tio the rolling security code.
* the cell phones in question were a Verizon G'zOne Type - S, And an unknown smart phone on a seperate carrier.
Conclusion:
1. I highly doubt that the phones are capable of boosting the signal of a frequency not programed to function within the hardwired parameter of the phone.
2. I doubt that same phone is capable of carrying that same signal through it's cell towers.
Problem is it did work for me and in the presence of an engineer that works with radio technology. We were both amazed and stumped and I will not rest till I figure this out. |
Samsarai
Member
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Posted: Mon Dec 31, 2007 | 12:24 AM
P.S. The reason we tried the Audio Recorder was to rull out a high frequency audio remote function.
And I will be doing experiments with greater distances and will let you know.
I will also be more accurate in recording the equipment used and variables as well as controls. |
idiot wind
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Posted: Tue Jan 22, 2008 | 08:28 PM
i cant believe how dumb you all are. |
mike
in fresno, ca
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Posted: Thu Feb 14, 2008 | 12:19 PM
IT DOES WORK!!!!!
How ever, you have to stick your elbow in your ear, hold a metric crescent wrench, while juggling spark plugs for a diesel engine. |
david in n'awlins
in new orleans
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Posted: Fri May 09, 2008 | 01:50 PM
what's the longest distance that this has been tested and worked? |
Ed
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Posted: Tue Jul 22, 2008 | 04:51 PM
IT WORKS! I have seen it done. And...9-11 was a inside job! |
jake
in huntington beach
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Posted: Tue Jul 22, 2008 | 06:32 PM
well,, I don't know the science but we just tried it from three miles away and it worked. |
doug
in chicago
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Posted: Sun Aug 03, 2008 | 06:35 PM
doesn't work just tried for A friend who was locked out of his car. |
JustaGuy
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Posted: Fri Aug 08, 2008 | 05:12 PM
I cant believe these morons who so quickly discount the real world experience of people who have done it and not just read what someone else thinks about it.
I have tried it and it works sporadically. Dont know what the details are or the criteria for getting it to work, but it does sometime work.
Please, if you dont think it works and have not experimented with it yourself, be reasonable, ask questions maybe or discuss it reasonably.
But dont show everyone what a closed-minded ignoramus you can be by telling us what you obviously dont have a clue about.
This is about some kind of EM induced currents in the key receptor in the car. It is not about IR or sound carried over the phone for Heavens sake. |
Grimreaper
in Durban S.A.
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Posted: Mon Aug 11, 2008 | 03:36 PM
Looks like what we have here, is a failure to communicate. All of those who believe that it works, may be correct... In as far as that they believe it works, NOT in that it does actually work. Too many variables creep into these "internet truthisms". Think of all the possible combinations; People on their cell phones all day, using garage door openers, gate remotes, car fob's, in all sorts of combinations, and in all sorts of proximity to devices, should have caused chaos by now, or should have at least created more of a buzz than we see from these sad people who think it's true.
Besides, who on EARTH just conveniently leaves their spare fob lying around, so that it's available to be used in an 'emergency' anyhow? I'd say that these people who've 'tried' it were in range of the transmitter, or were inadvertently creating conditions that boosted the RF signal. Conclusion: These same people ALSO dissolved a steak using a well known Cola soft drink... |
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