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U.S. airlines warn 5G wireless could wreak havoc with flights


  • Registered Users Posts: 8,233 ✭✭✭cml387

    The explanation the FAA have made is that it might interfere with the radar altimeter. I guess that would have consequences for autoland and CAT III approaches.

  • Registered Users Posts: 6,039 ✭✭✭zg3409

    I don't think the same frequencies here are used for radar altimeter. If you read the details the altimeters are actually on a different frequency to the 5G. The extra caution is on cheaper/older altimeters that may not filter out nearby frequencies that did not have strong signals in the past. Over a city with lots of 5G, the signal would be crazy strong, and the altimeters in general would be very sensitive expecting to hear a ping reflected back from the ground. It may also not give the pilot an error or error on display of wrong radar altitude. Often these systems are used for automatic landing, but also automatic ground collision avoidance, which may fail silently if the radar altimeter starts to become dodgy over time. In the main I think it's the industry pushing back as they don't want to upgrade existing systems, or even fully test older systems. The reality is the frequencies are already sold to the highest bidder.

  • Registered Users Posts: 809 ✭✭✭HTCOne

    I don't think the 5G in Europe goes above 3.7 gHz unlike what's about to happen in the US so not an issue here yet.

  • Registered Users Posts: 139 ✭✭Dhenalau

    Adding a new article from Reuters for reference:

    Explainer: Do 5G telecoms pose a threat to airline safety?

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  • Registered Users Posts: 1,399 ✭✭✭Noxegon

    And here's me thinking that 5G network compatibility was based on whether you got Pfizer, Moderna, or J&J....

    ...I'll get my coat.

    I develop Superior Solitaire when I'm not procrastinating on