Putting your phone on airplane mode while flying is not a legal requirement, but it is generally advised by airlines and regulatory authorities for safety reasons. Here's why:
Interference with aircraft systems: Electronic devices, including mobile phones, emit radio waves that could potentially interfere with an aircraft's communication and navigation systems. Although modern aircraft are designed to be more resilient to such interference, it's still considered a precautionary measure to minimize any potential risks.
Cellular network interference: When you're flying at high altitudes, your mobile phone can connect to multiple cell towers simultaneously. This can cause network congestion and interference as your phone switches between different towers rapidly. Additionally, as you move further away from the towers due to the aircraft's speed and altitude, your phone may continuously search for a stronger signal, draining its battery faster.
Compliance with regulations and airline policies: Airlines often require passengers to switch their phones to airplane mode during flight to comply with their policies and maintain a distraction-free cabin environment. Cabin crew members typically make announcements prior to takeoff, reminding passengers to switch their devices to airplane mode.
However, it's worth noting that many airlines now offer in-flight Wi-Fi services, allowing passengers to connect to the internet and use their devices safely without interference. In such cases, you can keep your device connected to the aircraft's Wi-Fi network and follow the airline's guidelines.
Ultimately, while it may not be a legal requirement, following the advice to switch your phone to airplane mode is generally recommended to ensure a safe and uninterrupted flight experience.