Which J-series message is for a reference point, area, or one/two segments lines?

Which J-series message is for a reference point, area, or one/two segments lines?

• A. J3.0
• B. J3.1
• C. J3.2
• D. J3.3

Answer: (A)

J-series messages in Link 16 carry geometric descriptions that tell a partner how to draw things on a tactical picture. The one that encodes a reference point, an area, or a line made of up to two connected segments is J3.0. This format is designed for the simplest shapes you need to mark: a single point, a defined area (polygon), or a short line with one or two segments. That makes it the best fit for describing those basic geometry types. The other J3.x formats cover different, more complex or extended shapes, so they aren’t the right choice when you only need a point, an area, or a short two-segment line.

J-series messages in Link 16 carry geometric descriptions that tell a partner how to draw things on a tactical picture. The one that encodes a reference point, an area, or a line made of up to two connected segments is J3.0. This format is designed for the simplest shapes you need to mark: a single point, a defined area (polygon), or a short line with one or two segments. That makes it the best fit for describing those basic geometry types.

The other J3.x formats cover different, more complex or extended shapes, so they aren’t the right choice when you only need a point, an area, or a short two-segment line.