On Sep 11, 3:02 pm, "TomTom" invalid.com> wrote:

It’s simple physics. Choose the right frequencies and it will happen.
Every EE-student probably does such experiments in a lab session
during his degree.

To “empirically test” this “theory”, you would have to consider all
devices that passengers could possible bring on board. And that’s
simply impossible.
The only incident I know of is a video camera that caused interference
at cruising altitude when someone was filming his family.

However, I agree that much about the use of mobile phones on planes is
exaggerated. Planes don’t fall out of the skies when someone turns on
his mobile phone mid-flight – that’s clearly rubbish.

I also agree that many factors would have come together to cause a
major incident, but better be safe than sorry. I don’t mind switching
off my iPod for 10 minutes during take-off and landing.

Bob.