Questions tagged [mode-s]

Mode S is a type of aircraft transponder used in conjunction with Secondary Surveillance Radar. Mode S equipped aircraft transmit an aircraft specific unique code, which can be used for selective interrogation by surveillance equipment.

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How do I use the Mode S MB Data subfield of the ASTERIX data item I062/380?

In the ASTERIX message cat062, there's a data item I062/380 -Aircraft Derived Data- which has a Subfield #25 called "Mode S MB Data". What is this subfield for? The field is 56 bits long, which ...