Re: Can car alarm be set off by cell phone?

["Sue" <sodom@xxxxxxxxxx>]

Read this thread all the way from the top:

http://www.bimmerfest.com/forums/showthread.php?p=1545889


"mikey" <loismustdie@xxxxxxxxx> wrote in message
news:447b5ab5$0$24246$88260bb3@xxxxxxxxxxxxxxxxxxxx
> And folks walk around with these transmitters nestled up nice and
> close to their brains.
>
> "Jim" <alarminex@xxxxxxx> wrote in message
> news:1148701603.254458.57590@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> >
> > DanK wrote:
> > > We have a 2004 Toyota with a factory installed car alarm.  The alarm
> > > goes off randomly.  Sometimes a few times a day, some days not at all.
> > > No physical disturbance is setting it off (it does it even sitting in
> > > our closed garage).  However, we noticed that it seems to happen when
> > > my daughter's cell phone is in the car.  I am still trying to confirm
> > > this relationship (by having the phone in there, or not having it in
> > > there, and seeing when the alarm goes off).
> > >
> > > Could the cell phone be setting off the alarm?  It's nothing obvious,
> > > like the phone being on "vibrate" mode, and receiving a call.  Could
> > > the phone be sending a radio signal that is at a frequency that sets
> > > off the alarm (like the frequency of the emergency button on the key
> > > pad)?
> > >
> > > We had it at the Toyota dealer, but they didn't find anything (this
was
> > > before I made the cellphone connection).
> > >
> > > Thanks for any help!
> > >
> > > DanK
> >
> > Four or five years ago, I had to move a smoke detector out of a
> > business conference room. Every time someone would use a cell phone in
> > the room, it would set off the fire alarm.
> >
> > At my office. When I'm using the office phone (land line) and my office
> > assistants cell phone is going to get a call ( a few seconds before her
> > cell phone rings) I hear strong clicking on the desk handset. Seems
> > like it might be able to cause a problem with a sensitive circuit in a
> > car alarm.
> >
>
>
>
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