Tests Cast Doubts on iPad and Kindle Restrictions
bits.blogs.nytimes.com
bits.blogs.nytimes.com
http://www.boeing.com/commercial/aeromagazine/aero_10/interf...
"Emissions at the operating frequency were as high as 60 dB over the airplane equipment emission limits, but the other emissions were generally within airplane equipment emission limits. One concern about these other emissions from cell phones is that they may interfere with the operation of an airplane communication or navigation system if the levels are high enough."
I would agree that the recommendations are strongly based in paranoia, and I'm completely ok with that. Being based on inertia, and policy vs the latest science is something no one wants to see, but it will take a lot more than a NYT pseudo-test to change it.
If you get a chance, read through this recent Ars Technica thread discussion these issues (if you don't have time, start on page 4), there's a lot of info, including links to NASA research, about this topic.
edit: to save readers some time, here are a couple of links from that thread-
http://asrs.arc.nasa.gov/publications/callback/cb_237.htm
http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/2001006...
For pacemakers, do they have a choice? Could the user reasonably turn off his pacemaker during takeoff and landing if he wanted to?
Don't get me wrong, I appreciate someone doing the legwork of articulating the inanity of these rules, I truly do. It seems to me though something akin to bringing carbon dating or geographical records to a young-earth society meeting.
I've heard a story where the chief pilot for a large company with a fleet of corporate jets banned Blackberrys because everytime the plane was landing and the CEO was onboard, the plane lost it DME localizer (older type of aircraft navigation beacon). No biggie, but in a worst case scenario that could easily become an issue.
If that were true, all terrorists would have to do is keep their devices on. This cell phone rule dates from when the airline wanted you to swipe your card and pay $10 to use the seatback phone.