In SSR, what data is provided in addition to aircraft identification?

In SSR, what data is provided in addition to aircraft identification?

• A. Position data only.
• B. Weather data.
• C. Altitude and Flight ID data.
• D. Pilot credential information.

Answer: (C)

In Secondary Surveillance Radar, the transponder replies to interrogations with data beyond just an aircraft’s identity: it includes altitude and a flight identification string. The altitude comes from Mode C (and Mode S carries altitude info as well), letting air traffic control know how high the aircraft is. The flight ID is the call sign or flight number carried by the transponder, so controllers can recognize which specific flight is being tracked. Weather data and pilot credentials aren’t part of the SSR reply, and position is determined mainly from radar range and bearing rather than a separate data field from the transponder.

In Secondary Surveillance Radar, the transponder replies to interrogations with data beyond just an aircraft’s identity: it includes altitude and a flight identification string. The altitude comes from Mode C (and Mode S carries altitude info as well), letting air traffic control know how high the aircraft is. The flight ID is the call sign or flight number carried by the transponder, so controllers can recognize which specific flight is being tracked. Weather data and pilot credentials aren’t part of the SSR reply, and position is determined mainly from radar range and bearing rather than a separate data field from the transponder.