It’s time to take off, and along with the guidelines that we know by heart, one that will leave you without “connection” until you reach your destination: you must change to the airplane mode your phone until landing. What is the real reason for this still haven’t changed?
The answer is given in The Conversation the professor and chief of aviation, Doug Druri. As he explains in the article, technology has come a long way. All in all, navigation and aviation communications depend on radio services, which have been coordinated to minimize interference since the 1920s:
The digital technology in use is much more advanced than some of the older analog technology that we used even 60 years ago. In fact, research has shown that electronic devices can emit a signal within the same frequency band as the aircraft’s communications and navigation systems, creating what is known as electromagnetic interference.
Something changed in the year 1992, when the US Federal Aviation Authority and Boeing, in an independent study, investigated the use of electronic devices in the interference of aircraft and found no problems in the critical phases, that is, in takeoffs and landings. At the same time, reserved frequency bandwidths were created for different uses, such as mobile phones and aircraft navigation and communications.
Thus, they could not interfere with each other and, among other things, that allows electronic devices to remain on on a flight since 2014.
However, the mobile signal remains unchanged (and off) in a flight, the reason? As Drury points out, one of the problems lies in something we may not expect: ground interference. Yes, wireless networks are connected by a series of towers, and the networks could become overloaded if passengers flying over these terrestrial networks use their phones.
The switch to 5G, even if it helps on “ground,” has created new concerns on flights, primarily because 5G wireless network bandwidth spectrum is believed to be remarkably close to reserved aviation bandwidth spectrum, which can cause interference with aircraft. navigation systems near airports that help with aircraft landing.
By the way, the expert brings up a third possible problem why we continue to limit the use of mobile phones on planes: with new Wi-Fi technologies, passengers could theoretically use their mobile phones to make video calls with friends or clients during the flight. .
According to Drury, “The problem with in-flight phone use has more to do with the social experience of having more than 200 people on a plane all potentially talking at once. In an age where disruptive passenger behavior, including “air rage,” is becoming more prevalent, in-flight phone use could be another trigger that changes the entire flight experience.” [The Conversation]