Actually there IS evidence that cellphones can disrupt the airplane
GPS navigation systems.  This was reported in my last month's
issue of IEEE magazine (Institute of Electrical and Electronic
Engineers).  One operates at 1.8Ghz and the other operates at
1.9Ghz.  The faint satellite signals can be washed out by strong
nearby cellphone transmissions.  This would be most dangerous
during instrument landings.

http://www.post-gazette.com/pg/06060/662669.stm

-Christopher Erickson


On 6/1/06, Bill Sheehan <[EMAIL PROTECTED]> wrote:
>
> This has been said before, but it bears repeating.  There is no
> evidence that cell phones or other consumer electronics cause
> interference with aircraft instruments.  However, new consumer
> electronics are introduced every day, and no airline can afford to
> test them all.  (Hell, they can't even afford peanuts!  "Would those
> in first class please fasten their seatbelts.  Tourist class
> passengers, please hold tightly to the overhead strap.")  When
> measuring the admittedly slight chance of the airplane slamming into
> a mountain with the benefit of a passenger being able to play Super
> Mario Brothers on his cell phone, the airline industry prefers risk
> avoidance.
>
> "Trans-American Airlines.  You'll feel like you've never left the
> ground, because we treat you like dirt."
>
> -- Bill
>
>
>
> On Jun 1, 2006, at 8:29 AM, Victor Grazi wrote:
>
> > I just took Continental Ny to San Francisco and back. Going, I was
> > using my
> > treo to read an ebook. They saw me and asked me to turn it off
> > during take
> > off.
> >
> > On the way back they announced to turn off all cell phones and
> > computers.
> > Thinking if I turned off my wireless mode I would qualify. Again
> > they asked
> > me to turn it off. I explained that wireless mode was off but they
> > weren't
> > impressed. But is there any real evidence for potential problems? I
> > would
> > think the airline industry would (still) have the wherewithall to
> > make a
> > definitive determination.
> > Regards
> > Victor
> >
> > ...... Original Message .......
> > On Thu, 01 Jun 2006 07:10:00 -0500 "Mitch Riechmann"
> > <[EMAIL PROTECTED]>
> > wrote:
> >> I just flew Continental yesterday from California to Tennessee.
> >> On one
> > flight they made the standard announcement that we could use "approved
> > portable electronics" at this time.  I used the Treo the whole flight
> > without any questions from the flight staff.
> >>
> >> On the second flight (Continental Express), the standard "approved
> > portable electronics" announcement was made, followed immediately
> > by, "If
> > your device has wireless features, make sure they are turned off."
> > The
> > flight attendant was new and was reading from a manual, so I have a
> > feeling
> > that this is Continental's written policy.
> >>
> >> Mitch
> >>
> >>
> >> -----Original Message-----
> >> From: Alli <[EMAIL PROTECTED]>
> >> Date: Wednesday, May 31, 2006 1:18 pm
> >> Subject: Re: [Treo] Treo on US Airways
> >>
> >> I need to check and see what Continental's policy is before I
> >> board them
> > next month....
> >>
> >>
> >>
> >>
> >>
> >> Yahoo! Groups Links
> >>
> >>
> >>
> >>
> >>
> >>
> >
> >
> >
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> > Yahoo! Groups Links
> >
> >
> >
> >
> >
> >
>
>
>
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> os software<http://groups.yahoo.com/gads?t=ms&k=Palm+os+software&w1=Palm+os&w2=Handspring+treo&w3=Palm+os+bible+software&w4=Palm+os+program&w5=Palm+os+software&w6=Palm+os+bible&c=6&s=124&.sig=Jd1Ui9IDOwJ0TQLQqaCZCA>  Palm
> os bible<http://groups.yahoo.com/gads?t=ms&k=Palm+os+bible&w1=Palm+os&w2=Handspring+treo&w3=Palm+os+bible+software&w4=Palm+os+program&w5=Palm+os+software&w6=Palm+os+bible&c=6&s=124&.sig=p59Q8UnP5nCqbBRA52gT-g>
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--
-Christopher Erickson
Network Design Engineer
5432 E. Northern Lights Blvd., Suite 529
Anchorage, AK  99508
N61° 11.710'  W149° 46.723'
www.data-plumber.com


[Non-text portions of this message have been removed]



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