Why do some mobile phones still affect the flight of the aircraft when they turn on airplane mode?

For the "airplane mode" of mobile phones, it is only a function developed by mobile phone manufacturers, which simulates the state of "no network" when flying. Even when mobile phones are in "airplane mode", they can generate electromagnetic waves and radiated interference, but at a relatively low level. ‍‍

As far as I know, even when mobile phones are in "airplane mode", they can generate electromagnetic waves and radiated interference, but at a relatively low level. ‍

As long as the mobile phone is turned on, it may send out some signals, which may affect the flight of the aircraft.

Theoretically, there is no effect on the aircraft's operating signals, but this is not to say that the flight mode does not interfere with the normal take-off and landing of the aircraft.

Because some mobile phones may be unqualified, the airplane mode is just a decoration, and the module function is not loaded.

Because the mobile phone is an electronically operated product after all, even if you are in airplane mode, it is still running, and it will be subject to some interference.

Because the airplane mode only selectively turns off one or more of the call, SMS, Bluetooth and wifi functions, the airplane mode does not absolutely guarantee that the mobile phone will not send any signal during takeoff, once the mobile phone generates radio waves in the airplane mode, it may affect the aircraft's ground-to-air communication and thus affect the flight of the aircraft.

Airplane mode is actually just a gimmick launched by mobile phone manufacturers, and it has never been officially recognized.

Airplane mode is only isolated from most of the signals, but when the mobile phone is turned on, there will still be a small amount of signal and radiation generated, so the mobile phone must be turned off on the plane, and when the flight attendant reminds you, it will also be clearly stated that the airplane mode cannot replace the shutdown.

There's no basis for this, I don't know, my phone won't, at most some functions can't be used.

The mobile phone has started airplane mode, but it says that it can't be connected to the Internet, but the electronic devices in the mobile phone are still not completely turned off, which will affect the flight.

Because it is the chip in the phone that affects the flight of the plane, it will still be affected if you turn off the airplane mode.

No, you cannot. The main reason why domestic airlines do not accept "flight mode" is that the Civil Aviation Administration of China does not certify the flight mode, and whether it is a Chinese manufacturer or a foreign manufacturer, whether it is a brand manufacturer or a copycat manufacturer, they are developing their own "flight mode" function, so it is difficult to guarantee that there is no problem. In other words, the approach taken by the Civil Aviation Administration of China is undoubtedly the safest and at the same time the least flexible.

At the end of October last year, the FAA approved the ability for users to turn their mobile phones into "airplane mode" without turning them off during flights, but of course, the call function of mobile phones during flights is still expressly prohibited.

The reason why the mobile phone will interfere with the normal flight of the aircraft is that in the take-off and landing phases, the mobile phone will search for signals after it is turned on, and the frequency used by the mobile phone and the electromagnetic wave frequency of the aircraft and the tower are similar or even superimposed, which may be regarded as the operation signal sent by the tower, causing misoperation.

In order to solve this problem, smartphone manufacturers have provided a solution called "airplane mode". "Airplane mode" is to turn off the communication module of the mobile phone, can not receive and send text messages, and the base station has no signal contact, from this technology itself, basically solves the problem of signal interference generated by the mobile phone.

Taking most brands of smart phones such as Huawei and Apple as an example, the mobile phone on the plane can be turned on airplane mode. During the whole flight of the aircraft (from the time when the aircraft starts to fly into the runway to the time when the flight ends and taxith out of the runway), the mobile phone needs to be turned on the flight mode, and the mobile communication function (voice and data) is turned off, and then the mobile phone can be used.

The flight mode of the mobile phone, also known as the aviation mode, must be turned on when taking the plane, and the opening is to avoid the impact of the transmission and reception of the mobile phone signal on the flight of the aircraft. Different airlines may have different regulations, some airlines stipulate that the mobile phone can be used after the airplane mode is turned on, while some airlines passengers may still need to turn off the mobile phone at all times, please ask the flight staff for details.

On the plane, it is possible to turn on the airplane mode on the mobile phone and connect the Bluetooth headset.

China Eastern Airlines and Hainan Airlines have announced the lifting of the ban on the use of mobile phones in the air, allowing passengers to use portable electronic devices (PED) such as mobile phones, tablets, laptops, and e-readers, but they need to set their electronic devices to airplane mode. But for cabin safety reasons.

During the critical phases of flight such as taxi, take-off, descent, and landing, small PED devices such as mobile**, e-books, etc., are not allowed to connect accessories such as headphones, charging cables, etc. That is to say, in addition to the key stages of flight such as taxi, takeoff, descent and landing, you can use Bluetooth headsets to listen to songs after the mobile phone turns on the airplane mode.

The introduction to the use of mobile phones in the air is as follows:

WiFi on the plane is not available to all passengers, such as basic first class and business class are definitely available, but economy class is not necessarily, sometimes it is only temporarily free, or free for a limited time, etc.

If you are already using your mobile phone to surf the Internet, the data connection on your mobile phone cannot be turned on, and you must turn on the airplane mode of your mobile phone, and then connect to the wireless that comes with the plane through wireless connection. If your mobile phone is out of power, you can't use a power bank to charge, and not all power banks can be brought on the plane.

The above content reference: Phoenix.com - Many countries have lifted the ban on mobile phones on airplanes.

1. It is not possible to turn on the airplane mode on the mobile phone on the plane.

2. Airplane mode is to turn off the communication module of the mobile phone, can not receive and send text messages, and the base station has no signal contact, at this time you can use other functions such as calculator, stopwatch, clock, this is a "anti-interference" state, but also the original meaning of "airplane mode", that is, like taking a plane so that the mobile phone is not disturbed. But on the other hand, it doesn't mean that mobile phones won't interfere with the take-off and landing of aircraft.

3. Although this mode can provide users with some convenience such as anti-disturbance in some specific circumstances, it should be noted that this function has not been recognized by the aviation department, and it is still a violation for passengers to use "airplane mode" without turning off their mobile phones when taking an airplane.

1. It is not possible to turn on the airplane mode on the mobile phone on the plane.

2. Airplane mode is to turn off the communication module of the mobile phone, can not receive and send text messages, and the base station has no signal contact, at this time you can use other functions such as calculator, stopwatch, clock, this is a "anti-interference" state, but also the original meaning of "airplane mode", that is, like taking a plane so that the mobile phone is not disturbed. But on the other hand, it doesn't mean that mobile phones won't interfere with the take-off and landing of aircraft.

3. Although this mode can provide users with some convenience such as anti-disturbance in some specific circumstances, it should be noted that this function has not been recognized by the aviation department, and it is still a violation for passengers to use "airplane mode" without turning off their mobile phones when taking an airplane.

1. It is not possible to turn on the airplane mode on the mobile phone on the plane.

2. Airplane mode is to turn off the communication module of the mobile phone, can not receive and send text messages, and the base station has no signal contact, at this time you can use other functions such as calculator, stopwatch, clock, this is a "anti-interference" state, but also the original meaning of "airplane mode", that is, like taking a plane so that the mobile phone is not disturbed. But on the other hand, it doesn't mean that mobile phones won't interfere with the take-off and landing of aircraft.

3. Although this mode can provide users with some convenience such as anti-disturbance in some specific circumstances, it should be noted that this function has not been recognized by the aviation department, and it is still a violation for passengers to use "airplane mode" without turning off their mobile phones when taking an airplane.

1. It is not possible to turn on the airplane mode on the mobile phone on the plane. Shiyuan.

2. The airplane mode is to turn off the communication module of the mobile phone, can not receive and send text messages, and there is no signal contact with the base station, at this time you can use other functions such as calculators, stopwatches, clocks, this is a state of "anti-slow sale interference", and it is also the original meaning of "airplane mode", which means that the mobile phone is not disturbed like taking a plane. But on the other hand, it doesn't mean that mobile phones won't interfere with the take-off and landing of aircraft.

3. Although this mode can provide users with some anti-disturbance and other conveniences in some specific circumstances, it should be noted that this function has not been recognized by the aviation department, and it is still a violation for passengers to use "airplane mode" without turning off their mobile phones when taking an airplane.