We used to have to put our phones in the back pocket of our bags until ukraine phone number library the end of the flight, but now we can use them as much as we want in airplane mode. Why? What changed? Shouldn't planes crash every time someone forgot to turn off their phone before takeoff? And what would really happen if everyone started talking on their phone during a flight?
Connecting calls through cell towers
Let's start with the basics - how cell towers work. When you make or receive a call, your phone searches for the nearest cell tower it can connect to. Each tower can provide coverage for an area within a 50-mile radius.
As you move from one area to another, constantly moving, your calls are transferred from one tower to another. This process requires a lot of work to make this movement seamless for you. There are also built-in expectations related to wait time, the speed of the user, and the altitude.
Air travel exceeds all three of these expectation factors. Simply put, calls in the sky interfere with the normal functioning of this complex system.
Therefore, at the moment, the use of mobile phones during flights is prohibited.
But what is the risk?
This all sounds like a maintenance issue, not a safety issue. What would happen if someone left their phone in normal mode at 30,000 feet? Probably nothing. But there is a small risk that using the phone could interfere with critical aircraft systems.
Most new smartphones no longer pose a threat to aircraft systems, but 2G phones were less secure in this regard.
Researchers have found that electromagnetic radiation from personal electronic devices can interfere with aircraft systems. In particular, those in the 800-900 MHz range can interfere with cockpit instrumentation.
