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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What aircraft would have these tail numbers?

Last night I was looking at a flight radar on my phone, and I saw two blips flying close to each other over Camden, NJ. They were heading northeast at around 250 knots, and the only information ...