Re: OT : XDA Exec deal ? - Supplementary

["Simon Coates" <simon@xxxxxxxxxxxxxxxxx>]

Phones can definitely affect electronics systems.

About five years ago my Nokia phone interfered with my car a couple of
times.  It happened the same way both times.  The phone was in the centre
console and rang just as I turned the key to start the car.  I got a
warning
signal to say that the engine had lost communication with the gearbox -
engine in the front and the gearbox in the back.  The phone had corrupted
the data bus which was a few cms away from the phone.

Regards

Simon

----- Original Message -----
From: Stuart Poulton <stuart.poulton@xxxxxxx>
To: <ukha_d@xxxxxxx>
Sent: 03 January 2006 16:33
Subject: Re: [ukha_d] OT : XDA Exec deal ? - Supplementary


> No mater who you talk to you'll get a differrent story about the
effects
of
> electonic on avionics.
>
> CAA Research: http://www.geekzone.co.nz/content.asp?contentid=800
>
> This from the internet also presents the problem in a different light
>
> "I've had lengthy discussion with Qantas about this issue and was
even
> issued a copy of the flight manual stating that all PDA phones must be
> turned off at all times. The reason given in the manual was that it
was
> impossible for the attendants to be 100% sure that flight mode is on
given
> the number of different devices on the market.
> Now, I've done a fair bit of reading on the effects of mobiles on
planes.
> Now, mobiles are very smart devices, the closer they are to a tower,
the
> less power / wattage they use. Obviously , the further away they are,
they
> up the wattage to maintain the signal. When there is no signal, the
mobiles
> use full power until they find one. One phone on a plane at 30,000
feet
isnt
> a problem, but 200 phones looking for a signal at full power does
produce
an
> audable buzz to the pilot's headset. However it has been proven that
it
has
> NO effect on navigation. ShadowLee is spot as Boeing are testing a
cell
> tower in a plane. 200 phones on low power (as the cell will be very
close)
> won't be a problem.
> As for mobiles ignititing petrol fumes? Virtually impossible. Even at
full
> power mobiles cannot produce enough power to ignite the fumes. The
only
way
> it could start a fire would be if the battery separated from the phone
as
> the terminals could produce a spark.
> If u can cast yout memories back a few years, Qantas actually allowed
city
> flyer flights to use mobiles once u landed and the seat belt sign was
off.
> With my old Smartphone I got constantly asked to turn it off (one time
the
> attendant got quite aggressive), but with my mini I'm yet to have a
problem
> (touch wood) and I travel every fortnight. I just keep my fingers over
the
> phone symbol buttons which seems to help.
> Anyway, hope this helps. "
>
> Personally, I'd rather the plane stay in the air, and not have to
listen
to
> the saleman next to me reasoning with his customers.
>
> S
>
>
>
>
> Yahoo! Groups Links
>
>
>
>
>
>
>