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You Don’t Need to Use Airplane Mode on Airplanes | Airplane mode hasn't been necessary for nearly 20 years, but the myth persists. (gizmodo.com)

submitted 10 months ago by L4s@lemmy.world to c/technology@lemmy.world

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You Don’t Need to Use Airplane Mode on Airplanes | Airplane mode hasn't been necessary for nearly 20 years, but the myth persists.::Airplane mode hasn't been necessary for nearly 20 years, but the myth persists.

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[–] rrrurboatlibad@lemdro.id 194 points 10 months ago (4 children)

You should still set airplane mode when airborne for other reasons besides interference with the aircraft. For one, you'll save your battery. It takes a lot of "juice" for your device to search for cell towers that are likely out of reach. You may also want to avoid connecting to a tower outside where you have coverage. E.g. for a flight from Anchorage to Minneapolis, maybe you don't want to connect to Canadian cell towers and potentially receive charges in another country. Obviously this depends on your plan limits. But, yeah, it's not really about protecting the airplane, in most cases

[–] n01getsout@sh.itjust.works 37 points 10 months ago* (last edited 10 months ago) (1 children)

Here is a video from TED-Ed that explains why. TLDR: phones looking for a signal broadcast on high power, but planes move so fast that you can end up right next to a cell tower so the high power signal can interfere with other phones trying to communicate.

https://youtu.be/iKYHf22qVdM

I disagree with how he phrases a few things, but I think it's mostly accurate.

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[–] cm0002@lemmy.world 9 points 10 months ago

Most flights I've been on had outlets and/or USB for charging, I've been leaving airplane mode off for every flight for years now

Come to think of it, I'm pretty sure battery drain is about normal anyways when I don't plug it in, the radio must eventually switch to a lower power lower search frequency at some point. Either that or the tower searching drains your battery thing is about as overblown as the leaving GPS on thing

[–] pineapplelover@lemm.ee 1 points 10 months ago

I turn on airplane mode whenever I am already connected to wifi

[–] Deebster@programming.dev -5 points 10 months ago* (last edited 10 months ago) (3 children)

I thought another reason was to avoid blasting everyone* you pass with your phone's maximum power signal while trying to reconnect.

Edit: the problem being interference, not any health effects. I read that the effectively one-way signals from the sky worked somewhat like a jammer.

[–] Revan343@lemmy.ca 17 points 10 months ago

Cell phone radiation is negligible

[–] LufyCZ@lemmy.world 6 points 10 months ago

I don't think even the combined power of all the phones in the plane would be enough to cause interference for anyone

The phone's modem is not powerful enough, it takes a couple watts at most, which is tiiny compared to what a cell tower can output