如果您以前乘坐过飞机，您可能听说过有关将便携式电子设备设置为飞行模式或游戏模式的警告。
这是因为大多数主要航空公司都禁止在飞机在空中时使用无线通信，因为它可能会造成一些干扰，影响飞机上的无线电或其他设备无法正常工作。
不过，这并不是反对在飞机上使用移动设备的唯一原因。有时使用此类设备可能会分散同一航班上的其他乘客的注意力，因为并非每个人都希望有人在他们旁边说话或在他们的小工具上打字，尤其是当他们试图睡觉时。
在本指南中，我们将了解什么是飞行模式、它是如何工作的、它的实用性，以及它在启用时是否会妨碍您的智能手机或平板电脑的功能。
什么是飞行模式？(What Is Airplane Mode?)
飞行(Airplane)模式，也称为飞行或离线模式，是智能手机或平板电脑上的一项功能(feature on your smartphone)，可防止其接收或发送电话、短信和无线数据。
它主要在飞机上用作起飞和着陆时的安全预防措施，以禁用设备接收或发送可能干扰飞机无线电通信和相关系统的无线数据的能力。
飞行(Airplane)模式也出现在笔记本电脑和电脑上，激活后，它会禁用蓝牙(disables Bluetooth)、WiFi和其他电话通信，从而可以轻松暂停射频传输。
当您希望手机或平板电脑更快地充电或通过阻止设备寻找信号连接从而节省能源来节省电池寿命时，它也很有用。(save on battery life)
如果您的移动互联网出现问题(problems with your mobile internet)或找不到WiFi信号，飞行模式可以帮助您重新获得运营商设置。您可以通过重新打开和关闭它来执行此操作，就像重新启动手机或平板电脑时一样。
飞行模式(Airplane mode)的其他用途包括通过禁用来自游戏、社交媒体或文本和其他应用程序的持续通知来帮助您专注于手头的任务。此外，它还可以为您节省现金，特别是如果您将小工具留给倾向于下载或购买东西的孩子，大多数时候是错误的。(leave your gadget with kids)
飞行模式对智能手机或平板电脑有什么作用(What Airplane Mode Does To a Smartphone Or Tablet)
飞行(Airplane)模式会禁用手机或平板电脑的无线功能，包括蜂窝连接、蓝牙(Bluetooth)、GPS和WiFi，使您与所有这些功能断开连接，使其无法正常工作。
对于电池电量不足的情况，飞行模式会派上用场，因为它可以帮助您节省剩余的少量电池，尽管您也可以使用设备的低功耗模式(Power Mode)，因为它仍然可以让您使用无线连接。
但是，启用飞行模式时受影响的功能因设备而异。
例如，在 iPhone 上，飞机会禁用蜂窝语音和数据、蓝牙(Bluetooth)、WiFi、GPS和基于位置的服务。 GPS不同，因为它不传输无线电频率，但飞行模式是否禁用GPS将取决于您的手机或平板电脑。实时交通等某些功能在飞行模式下无法使用，即使离线地图在没有WiFi或蜂窝网络连接的情况下也可以使用。
如果您乘飞机旅行，并且您已启用飞行模式，您仍然可以重新打开WiFi以使用机上WiFi连接，除非航空公司的规定要求所有设备完全关闭。
您还可以在手机或平板电脑上使用相机、玩游戏或听音乐以及其他一些功能。
飞行模式的工作原理(How Airplane Mode Works)
飞行(Airplane)模式会禁用手机或平板电脑的数据发送器和接收器，因此不会有数据传入或传出设备。您也将无法接听或拨打任何电话和短信，或收到飞行模式关闭时通常会收到的通知。
当您的智能手机或平板电脑处于飞行模式时，它不需要太多资源即可运行。它也将停止搜索来自附近蜂窝塔、蓝牙(Bluetooth)设备和WiFi热点的信号，从而节省电池寿命。
但是，这也意味着您将更难定位，因为您的手机或平板电脑并未就此传输其位置(transmitting its location)或存在。
航空公司限制在飞行中使用移动设备背后( idea behind airlines’ restrictions to using mobile devices in-flight)的想法并不是因为他们不希望你这样做。这主要是关于此类设备所允许的无线电频率，这些设备可能会干扰飞机的通信和导航系统，有时甚至是其防撞系统。
这就是为什么美国联邦(Federal) 通信(Communications) 委员会(Commission)( FCC ) 制定规则来限制飞机上的手机传输，进而导致在起飞和着陆期间禁止使用手机。
FCC还认为，飞机上的许多手机可能会同时 ping 多个手机信号塔，这也会混淆电话网络。
启用飞行模式时的工作原理(What Works While Airplane Mode Is Enabled)
大多数需要蜂窝或 WiFi 连接的应用程序或服务将无法运行。其中包括电子邮件、社交媒体、在线游戏、天气和股票更新、Siri 等语音助手(voice assistants like Siri)、应用商店，甚至是来自Netflix、Spotify等提供商的流媒体音乐和视频，以及其他需要互联网连接的公司。
但是，您仍然可以检查您的笔记，并且您的警报和提醒将起作用，因为它们不依赖互联网连接来工作。
您也不能使用紧急号码，因为所有电话和短信都被禁用，因此您无法接收或发送短信，也不能拨打或接听电话。
否则，您可以通过手机或平板电脑收听音乐，前提是它不需要无线连接，并且您可以在其中自拍和合影，因为您的相机不会受到影响。
概括 (Summary )
根据您拥有的设备，可以通过手动启用在飞行(Airplane)模式下使用WiFi 。当今有航空公司提供机上WiFi，因此您不必费力地试图弄清楚如何将该电子邮件发送给您的客户，或者在您可以完成飞行时交付待处理的工作。
在尝试连接之前，请先咨询空乘人员，并确保在起飞和降落时将其关闭。
HDG Explains : What Is Airplane Mode On Your Smartphone Or Tablet?
If you’ve traveled by рlane before, you’ve probably heard the warning about setting your portable electronic deviсes to airplane mode оr game mode.
This is because most major airlines forbid the use of wireless communications while the plane is in the sky, as it could cause some interference that affects radios or other devices in the plane not to function properly.
This isn’t the only reason against using mobile devices in the airplane though. Sometimes using such devices can be distracting for other passengers on the same flight, because not everyone wants someone talking next to them or typing on their gadgets, especially if they’re trying to sleep.
In this guide, we’ll look at what is airplane mode, how it works, its usefulness, and whether it hinders your smartphone or tablet’s functionality when enabled.
What Is Airplane Mode?
Airplane mode, also known as flight or offline mode, is a feature on your smartphone or tablet, which prevents it from receiving or sending calls and text messages, and wireless data.
It’s mostly used while on an airplane as a safety precaution when taking off and landing, to disable the device’s ability to receive or send wireless data that can interfere with the plane’s radio communication and related systems.
Airplane mode is also found on laptops and computers, and when activated, it disables Bluetooth, WiFi and other telephone communications, making it easy to suspend radio-frequency transmissions.
It’s also useful when you want your phone or tablet to charge faster, or save on battery life by preventing your device from looking for signal connections thereby saving energy.
If you’re having problems with your mobile internet or finding a WiFi signal, airplane mode can help you regain carrier settings. You can do this by switching it on and off again in the same way you would when restarting your phone or tablet.
Other uses for Airplane mode include helping you focus on the task at hand by disabling constant notifications from games, social media, or texts and other apps. Plus, it also saves you cash, especially if you leave your gadget with kids who tend to download or purchase stuff, most times by mistake.
What Airplane Mode Does To a Smartphone Or Tablet
Airplane mode disables your phone or tablet’s wireless functions including the cellular connection, Bluetooth, GPS and WiFi, disconnecting you from all of them so they won’t work properly.
For low-battery situations, airplane mode comes in handy as it helps you save on the little battery you have left, though you can also use your device’s Low Power Mode instead, as that still lets you use your wireless connections.
However, the functions affected when airplane mode is enabled vary from one device to another.
On iPhones, for instance, airplane disables cellular voice and data, Bluetooth, WiFi, GPS, and location-based services. GPS is different though, because it doesn’t transmit radio frequencies, but whether or not airplane mode disables GPS will depend on your phone or tablet. Some features like live traffic won’t work in flight mode, even though offline maps may work without WiFi or cellular connections.
If you’re traveling by plane, and you’ve enabled airplane mode, you can still turn WiFi back on so as to use the in-flight WiFi connection, unless the airline’s rules require that all devices be turned off completely.
You can also use the camera, play games or listen to music and a few other functions on your phone or tablet.
How Airplane Mode Works
Airplane mode disables your phone or tablet’s data transmitters and receivers so there’s no data coming to your device or going out of it. You also won’t be able to receive or make any calls and texts, or get notifications that you’d normally get when flight mode is off.
When your smartphone or tablet is in airplane mode, it doesn’t need many resources to function. It’ll stop searching for signals from nearby cellular towers, Bluetooth devices, and WiFi hotspots too, thus conserving the battery life.
However, it also means you’ll be harder to locate because your phone or tablet isn’t transmitting its location or existence for that matter.
The idea behind airlines’ restrictions to using mobile devices in-flight isn’t because they don’t want you to. It’s mainly about the radio frequencies admitted by such devices that can interfere with the plane’s communication and navigation systems, sometimes even its collision avoidance system.
This is why the Federal Communications Commission (FCC) put rules to limit cellphone transmissions on airplanes, which in turn led to the prohibition of their use during takeoff and landing.
The FCC also believes that lots of cellphones aboard the plane may ping multiple cell towers at the same time, which can also confuse the phone network.
What Works While Airplane Mode Is Enabled
Most apps or services that require cellular or WiFi connections won’t work. These include email, social media, online games, weather and stock updates, voice assistants like Siri, app stores, or even stream music and videos from providers like Netflix, Spotify and the rest that need the internet to connect.
However, you can still check your notes, and your alarms and reminders will work as they don’t rely on an internet connection to work.
You can’t use emergency numbers too as all calls and texts are disabled so you can’t receive or send texts, neither can you make or receive calls.
Otherwise, you can listen to music from your phone or tablet, provided it doesn’t require a wireless connection, and you can take selfies and groupfies while you’re at it as your camera won’t be affected.
Summary
It’s possible to use WiFi on Airplane mode, depending on the device you have, by enabling it manually. There are airlines today that offer in-flight WiFi, so you need not get stuck trying to figure out how to send that email to your client, or deliver pending work when you can finish in-flight.
Check with the flight attendants first before you try to connect, and make sure you keep it turned off at takeoff and when the plane is landing.
