Very often i see aircraft rated into Categories like A1, A3, A4 etc.
Is there somewhere an overview available where the different categories are documented?
So far i was not able to identify a pattern which explain it.
Currently i have for example a B737 on my screen documented as A0, an Airbus A400M as A4 and a B748 as A5
But there are also B737 documented as A3
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It is the ADS-B Emitter Category, documented in the ADS-B spec:
What you see in received messages is whatever was configured in the transponder, sometimes it is misconfigured.
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Perfect, many thanks.
Google did not give me that list…
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