How are LPAs (Lines, Points, and Areas) provided by Link 16?

How are LPAs (Lines, Points, and Areas) provided by Link 16?

• A. It transmits only geographic coordinates
• B. It transmits only text labels
• C. It allows transmission of lines, points, and areas, including free-draw lines limited to one or two segments, areas, and several JMPS-imported areas
• D. It prohibits free-draw lines

Answer: (C)

LPAs are graphical overlays sent over Link 16 to convey spatial information directly on a unit’s display. They aren’t just coordinates or text; they are vector shapes that include lines, points, and areas. Link 16 supports drawing lines for routes or engagement zones, points for markers or targets, and areas for polygons such as sectors or restricted zones. The system also allows quick “free-draw” lines, but these are limited to one or two segments to keep data flow manageable. Additionally, areas can come from the mission-planning tool (JMPS), so you can import several predefined areas for rapid display. This combination—lines, points, and areas, with lightweight free-drawl and JMPS-imported areas—captures how LPAs are provided.

LPAs are graphical overlays sent over Link 16 to convey spatial information directly on a unit’s display. They aren’t just coordinates or text; they are vector shapes that include lines, points, and areas. Link 16 supports drawing lines for routes or engagement zones, points for markers or targets, and areas for polygons such as sectors or restricted zones. The system also allows quick “free-draw” lines, but these are limited to one or two segments to keep data flow manageable. Additionally, areas can come from the mission-planning tool (JMPS), so you can import several predefined areas for rapid display. This combination—lines, points, and areas, with lightweight free-drawl and JMPS-imported areas—captures how LPAs are provided.