This would interfere with the cellular signals people on the ground receive. Even if these transmissions do cause problems, your plane won't fall out of the sky because a few people forgot to enable airplane mode!Ī more demonstrable concern is that, as you're traveling very quickly, all the phones on the plane would be constantly handing off from cell tower to cell tower. That's the concern that brought these laws about, anyway. This sort of communication could interfere with an airplane's sensors and potentially cause issues with sensitive navigation equipment. If the towers are far away, the phone or tablet has to boost its signal so it can communicate with the towers. A typical phone or cellular-enabled tablet is communicating with several cell towers and attempting to maintain a connection at all times. Regulations in many countries prohibit the use of devices that transmit signals on commercial aircraft. However, some aircraft regulations do not allow the use of GPS-receiving functions for whatever reason. In theory, GPS is unlike all the other technologies here - a device with GPS turned on is only listening to GPS signals it receives, not transmitting any signals. This is a bit confusing and inconsistent. ![]()
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