5G in the Skies: How High-Speed Internet Could Ground Canadian Flights—and a Mathematical Lifeline: Imagine boarding a flight from Toronto or Vancouver, only to learn your plane can’t take off because nearby 5G networks interfered with its instruments. It sounds like science fiction, but for Canadian aviation and telecom experts, it’s a very real—and urgent—problem. The rapid rollout of 5G across Canada has raised alarms with Transport Canada, airlines, and public safety advocates. The issue lies with radio altimeters, critical instruments that measure a plane’s altitude during takeoff, landing, and low-visibility operations. Operating around 4.2–4.4 GHz, these devices sit uncomfortably close to the C-band frequencies used by 5G, creating a risk of signal interference that could jeopardize flights.
5G in the Skies: How High-Speed Internet Could Ground Canadian Flights—and a Mathematical Lifeline: Imagine boarding a flight from Toronto or Vancouver, only to learn your plane can’t take off because nearby 5G networks interfered with its instruments. It sounds like science fiction, but for Canadian aviation and telecom experts, it’s a very real—and urgent—problem. The rapid rollout of 5G across Canada has raised alarms with Transport Canada, airlines, and public safety advocates. The issue lies with radio altimeters, critical instruments that measure a plane’s altitude during takeoff, landing, and low-visibility operations. Operating around 4.2–4.4 GHz, these devices sit uncomfortably close to the C-band frequencies used by 5G, creating a risk of signal interference that could jeopardize flights.
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