Originally Posted by
lemme
Here are links to the subsections. Please let me know of any corrections or missing aspects.
The statement
LMI2933 operates with Enhanced Mode S (not technically ADS-B).
is a tad confusing, and not strictly correct.
Mode S Enhanced Surveillance (EHS) and ADS-B aren't mutually exclusive - most aircraft nowadays have both - and the LAMIA RJ85 was no exception.
The data that FlightRadar24 captured appears to be exclusively from ADS-B squitters (albeit subject to the positional errors previously discussed).
It would have been interesting had FR24 also captured the additional EHS data that the flight would have been sending, such as TAS, IAS, heading, selected altitude, etc (although decoding those is a bit more challenging).