I use one of those black pouch thingies that velcros onto the truck. Mine has been on my F250 since 1996 and it has been thru lots of rain, some snow, lots of freezing and some 100+ temps. SO I guess if it was going to fall off it would have long ago.

The couple times I have had to use it, it was on really tight. There are a lot of good places on the trucks to hide one of these things since they are about the size of a business card and they lay flat. Mine is hidden where I can get it without having to crawl underneath or do any tough stuff to get at it. The trick is that mine is in a spot where it is hard to get your hand in with enough leverage to easily get it out. So a casual person would have to really want to get it and know what it was before going thru the trouble.

I like the card wallets, but this pouch is always right where I need it and I can't forget it. It is easy enough to check if you know where to look and so far it has never even given a hint that it was getting loose. It might actually be getting stuck tighter with age.

Jim Henderson

 

hey Fellro- you anywhere close to Kahoka? I'm from there originally.

 

People who understand the difference between RF and the way cell phones handle a signal shouldn’t have any trouble seeing this is a lot of bull*****.

The people who don’t understand the difference may actually try to depend on this at some point.

I just wanted to give folks a heads up.

If you find people who think depending on this will get them out of trouble, just set them straight.

I’d hate to see anyone get stranded anywhere because of them following this silly urban legend.

An extra door/ignition key tucked into my wallet works well.

 

Probably not the best place to keep it since if you lose your wallet not only do they get your key but they also get your address where your truck would probably be. Then they just need to do a little recon to find out what you drive then "borrow it". Just my .02

Dan

 

Point well taken. However, my NRA card is in there too, which might make them think twice about messing with my S&W Magnum Security System. Besides, with a few well placed RCA jacks and a few creative circuit modifications, it won't be gone in 60 seconds, even with the key. It won't crank without the "S" terminal on the solenoid getting a signal. And if they use a remote, it still won't run if the computer won't wake up. Even if they do get it to wake up, it still won't run without fuel delivery. And even if that is solved, it won't start without power to the ignition coil. And if they get through all that they have to disable the jumper that activates the horn and 4 way flashers. Even then, if they solve all that, and don't disable the jumper that links the starter to the airbag (I have used a hidden trio of relays to arm the airbag if the starting circuit, the fuel pump circuit, and the ingition circuit are operational) then they might get hurt when they engage the start portion of the ignition switch. I love having the factory service manual with full wiring diagrams.

P.S. My '84 Olds is wired up similar, except the fuel pump is mechanical, and there is no airbag.

 

How close do you want me to be? 12 west close enough? (1 west of Luray)

 

If you're a member of AAA, you can get 2 of those credit-card keys for free.

Steve

 

Theoretically, it COULD work. RF signals, are pretty much just light/sound waves. They just happen to be at a frequency that we can "piggyback" audio, or video, or both on. It is feasable that you could indeed unlock the car's doors over the cell phone... It would require wiring the transmitter into the sending phone, and holding the cell's speaker close enough to the car.

 

The microphone of the cell phone won't pick up the RF from the FOB. It's only designed to pick up audio (voice). Audio is 20 - 20khz. RF is 300khz and above.

samckernan

 

I have one of those plastic key thingys in my wallet. That thing has saved my butt many times.

 

since I go nowhere without my wallet, I have a spare in my wallet, and would have put one on the frame, but I just have a problem with that, dunno why

 

i just dont lock the truck, i dont keep anything in there to steal and i dont want a broken window. i even pulled the power lock relay so i dont accidently hit the switch on the door on my way out. as for someone stealing the whole truck, well its insured. and someone with a roll back wouldnt need keys to steal it anyhow.

 

First off, I’ve worked in cellular telecommunications engineering and operations since 1986. So I speak with some confidence that my theories are accurate. I try never to say never so my statements aren’t saying this is impossible, just that I can apply my years of experience to this situation and can’t come up with a way for it to happen.

In my wildest imagination, I can think of a way that this might happen with an old analog phone. But, the odds are exponential that it could actually happen and are astronomical that it could be repeated with any consistency.

As for the new digital phones, even in my wildest imagination, I can’t begin to dream of a way for this to happen, ever.

Actually, The human ear is capable of hearing frequencies between 300 and 3600 hertz. Most cellular phones today are digital and use a type of voice coding that doesn't even carry your actual voice. They use small samples of your voice to produce codes that represent your voice and then use a synthesizer to reproduce something similar to your voice on the other end of the call. The idea in part, is to maximize bandwidth by not processing unnecessary signals, only those within the human hearing range. Ever notice how quiet digital phone calls are? That’s because they don’t process most unnecessary background frequencies/noise, just voice. So, even if the phones speaker or IM frequency and mixer were capable of receiving the modulated signal of the cars remote, the voice coding circuitry would not encode or decode it because it is not within the expected human voice frequency range.

Just my .02

 

i dont have keyless entry so i just keep a spare in my wallet, works fine. im gonna try to see if i can get a spare made thats thinner tho, when i they make the spare they match teh keytype so the end without the teeth is pretty thick. still fits in the wallet but would rather it was thinner

 

Actually the range is 20 to 20khz...

A google search on "human hearing frequency range yielded these results at:

http://hypertextbook.com/facts/2003/ChrisDAmbrose.shtml

"Experiments have shown that a healthy young person hears all sound frequencies from approximately 20 to 20,000 hertz."

"The maximum range of human hearing includes sound frequencies from about 15 to about 18,000 waves, or cycles, per second."

"The general range of hearing for young people is 20 Hz to 20 kHz."

"The human ear can hear vibrations ranging from 15 or 16 a second to 20,000 a second."

"The full range of human hearing extends from 20 to 20,000 hertz."

I thought it was 20 to 20khz...but did a search on Google to confirm it. There are more sources out that there than those listed here.

Not trying to be argumentative...just didn't think the range you quoted sounded quite right.

Regards,
Scott