The Reason for Using Airplane Mode

When flight crews ask passengers to switch their phones to airplane mode before takeoff, it may seem like a routine instruction. However, the requirement is a precaution designed to limit wireless signals that could potentially interfere with aircraft systems. A smartphone acts as both a transmitter and a receiver. When cellular service is active, it continually searches for nearby mobile networks and attempts to maintain a connection. As an aircraft climbs and travels at high speed, the phone m