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Why making a satellite phone on an aircraft may affect the safety of popular science: the mobile phone is too powerful

via:快科技     time:2023/9/11 20:03:56     readed:134

Recently, Huawei's Mate 60 Pro series supports the function of directly connecting to satellite calls on mobile phones, attracting enthusiastic attention from netizens, according to news from Kuaitech on Sept. 11.

This feature is not only available in deep mountains and forests, but even users have tested satellite phones on airplanes, and the results are also available. However, irregular phone calls on the plane also affect flight safety. Bruce Lee, Huawei terminal BG CTO, specially sent an article to remind users:

It is a violation of the relevant flight safety regulations to use the satellite phone function of Mate60Pro to make calls and record video transmission during the flight phase of civil aircraft.

Why does it affect flight safety when you use your own mobile phone to make phone calls or surf the Internet on the plane? In this regard, & ldquo; Science and Technology Daily & rdquo; made the popularization of science:

According to its introduction, the existing mobile communication is the so-called mobile communication system, which needs a base station to transmit signals, but it is not yet equipped in the aircraft cabin. If you do not turn off the mobile phone or make calls, you need the mobile phone to find the base station with maximum power, which can easily lead to individual abnormal mobile phones to produce harmful interference signals to the aircraft.

The communication and navigation system on the aircraft has to receive signals from hundreds of kilometers away, and the sensitivity of the system is particularly high. Even very slight interference will have a great impact on flight safety.

In addition, the ranging navigation equipment of civil transport aircraft includes inertial navigation, GPS and ranging system DME. Among them, due to the different working principles, inertial navigation is completely free from communication equipment interference.

The working frequency band of GPS is 1.5GHz, while that of ranging DME system is 1000MHz, which is close to that of mobile communication network, so it is likely to be interfered by mobile phone.

为何飞机上打卫星电话可能影响安全 科普:手机大功率信号影响飞机通信导航

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