Well the idea is that the radio signal on peoples phones could interfere with the electronics in the plane, and things not working properly on a plane for takeoff/landing is good for no one.
What happens if you don’t put your phone on airplane mode Reddit?
You don’t HAVE to. Airplane mode suspends the transmit and receive functionality on your phone. While it’s not necessary, it will save your battery power while in flight. Your phone will be constantly expending energy looking for a signal it can use, so in Airplane mode, it won’t.
What happens if no airplane mode?
All that radio activity can minorly affect the plane’s navigational and communication systems. While your phones aren’t going to make the plane spontaneously stop working, or cause a crash landing, it can make the pilots’ jobs a lot harder.
Do you really have to put your phone on airplane mode?
But the real reason airlines in the U.S. make you put your phone on “Airplane Mode” is because of the Federal Communications Commission. But most airlines restrict passengers from making calls over in-flight Wi-Fi.
What happens if you use your phone in a plane?
If you don’t put your phone on airplane mode during a flight, your phone will probably annoy a few pilots and air traffic controllers. A phone’s radio emissions can be very strong, up to 8W; they cause this noise due to parasitic demodulation. Today In: Tech. I actually heard such noise on the radio while flying.