What is the truth behind the cell phones being turned off or set to flight mode during takeoffs and landings? If there is a cell phone interference with the controls, then why is it that it can be turned on during the flight?
gofar99 Messages: 1955 Registered: May 2010 Location: Southern Arizona
Illuminati (5th Degree)
Hi, As I understand it they are not likely to cause any problems. Modern nav and commo gear on aircraft are designed to not have sensitivities to anything a consumer device can legally emit. The reason I get from airline folks is they don't want you annoying other passengers.
The reason I get from airline folks is they don't want you annoying other passengers.
Good to know about this because my partner is afraid that the plane might crash due to the phones being used during takeoffs and landings. Now I would ask the airline folks how passengers using their phones during those times would annoy or irritate other passengers.
You know the first time I ever flew, I heard the flight attendant ask us to put our phones on flight mode yet no one went around to check if everyone was abiding. Just like gofar explains, there could be no real danger after all.
There must be a reason for the airline companies to advise us to switch off the phones or set to flight mode during takeoffs and landings. I guess it is just a precaution that doesn't really affect the flight itself. If phone manufacturers have the flight mode in their cell phones, then there must be a need for that, which we don't really know.
TheWanderer Messages: 58 Registered: December 2018
Baron
There may have been a risk in the past, like with hospitals. You weren't allowed to have cell phones on at a hospital because the signals could interfere with the equipment. Heck, I noticed the other day when I was pumping gas, it said no cell phones beside the no smoking sign. I've never noticed that one before! Guess I'm unobservant.
I think there is no problem with precautions even though we don't know the reason for turning off the cellphones on airplanes, hospitals, or gas stations. Better be safe than sorry, as the saying goes.
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I've never noticed that one before! Guess I'm unobservant. 
