It is not allowed to turn on mobile phones when flying. Most people should know that. But many people may wonder why I switched my mobile phone to flight mode and the stewardess asked me to turn it off?

Let's start with a friend's story. One day when he was on a business trip by plane, the woman in front of him suddenly quarreled with the man next to him. The woman grabbed the man's mobile phone and shouted, "You want to kill us!" My friend was shocked at that time and thought that a terrorist hijacked his plane. Amen. Of course, terrorists are not. The actual situation is that men have switched their mobile phones to flight mode, while women somehow say that flying mode on the plane will cause misoperation of the plane, or even serious accidents. What's the outcome? Of course, good men don't fight with women. After hearing that they may be fined 2000, they removed the battery.

The above story may be exaggerated, but the fine of 2000 yuan is not to frighten you. If it is not for this measure, I believe many people will still play Angry Birds on the plane in flight mode. What does the plane have to do with mobile phones?

Because the aircraft navigation mainly depends on electromagnetic waves, if the electromagnetic waves are interfered, the navigation equipment may fail, and the frequency used by the mobile phone is similar to or even overlaps with the frequency of the electromagnetic waves connected between the aircraft and the tower. In this case, the aircraft may be mistaken for the signals sent by the tower, causing misoperation. For example, the airport tower requires the aircraft to rise, because there is another aircraft below, and the interference of mobile phone electromagnetic waves causes the aircraft to execute the command of descending, which leads to the tragedy of the aircraft playing "folding music" in the midair.

What is the flight mode?

After the flight mode is enabled, the GSM/GPRS and other modules of the mobile phone will not be used and will not actively send paging signals to the base station. In fact, it is equivalent to turning off the phone, but you can also use non communication functions.

Since flight mode is equivalent to shutdown, why can't you use flight mode?

At present, the flight mode is mainly believed by the mobile phone manufacturer that it will not affect the mobile phone, and the Civil Aviation Administration of China has not yet certified the "flight mode" of any mobile phone. Although in principle, the mobile phone has little impact on the flight, it may still have some. For civil aviation companies, there is no harm in being strict, safety first

In addition, it is difficult to ensure that all flight modes are real flight modes. Considering the uneven quality of China's counterfeit mobile phones, it is difficult to ensure that all can meet the standard.

What is the meaning of flight mode?

Flight mode is useless on the plane. Why do you want this function? It is true that this function on the aircraft is really meaningless, but it is just a wishful thinking of the manufacturer to please users.

In fact, it has a certain effect. For example, when you don't want to answer your girlfriend's phone, you can set it to flight mode to play missing. If your mobile phone doesn't have much power and you want to play games, it can also save power when you set it to flight mode, especially at high altitude, when your mobile phone can't search for signals at high altitude, it will search with high power, which is very power consuming.

In addition, it is said that the flight mode also has a godlike function, that is, after your mobile phone is set to the flight mode, it will not be broken from high down, because this is the flight mode (please do not imitate it when you are under 18 years old, and for adults, please conduct it under the guidance of experts).

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