• Excigma@lemmy.world
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      6 months ago

      I believe they’re available as backup but re-calibrate themselves with GPS coordinates if available. This is not a problem when GPS jamming is used but becomes an issue with spoofing - the pilots need to monitor for it.

      I think they talk about it in this video by flightradar24 somewhere: https://youtu.be/4dG_Whxzdkk