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But you can see for yourself aeroplanes far over the ocean clearly not following a great circle route, presumably avoiding weather patterns.

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Interesting. So how does that work in FR24? If there was a service to get this data over long distances, then all these short range receivers would be unnecessary. So something is missing in “how does FR24 work” when it comes to that data.

Probably satellite ADS-B receivers like from: https://en.wikipedia.org/wiki/Aireon

If that's what happens - does that mean that suddenly FR24 won't need all this data crowdsourcing?

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