Which information is displayed by the Unpaired Limited Data Block?

Which information is displayed by the Unpaired Limited Data Block?

• A. Flight plan data only.
• B. Beacon code and, if available, Mode C altitude for untracked aircraft.
• C. Beacon code only.
• D. Weather data.

Answer: (B)

Unpaired Limited Data Block is the display used for aircraft that aren’t associated with a full radar track, providing only essential identification. It shows the beacon code (the four-digit transponder code) and, if the aircraft is transmitting altitude information with Mode C, the altitude value. This gives the controller a basic sense of who the untracked aircraft is and where it is in altitude, even without a complete tracked target. Weather data and flight plan data aren’t part of this block, because those require different data sources or full track information. So the beacon code plus Mode C altitude when available is the information you’d see here.

Unpaired Limited Data Block is the display used for aircraft that aren’t associated with a full radar track, providing only essential identification. It shows the beacon code (the four-digit transponder code) and, if the aircraft is transmitting altitude information with Mode C, the altitude value. This gives the controller a basic sense of who the untracked aircraft is and where it is in altitude, even without a complete tracked target. Weather data and flight plan data aren’t part of this block, because those require different data sources or full track information. So the beacon code plus Mode C altitude when available is the information you’d see here.