| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | radar reflector | Maritime countries | Required safety equipment on boats and ships to enhance visibility on radar for collision avoidance | 1 |
| 2 | radar reflector | maritime culture | Mandatory safety equipment on boats and ships to enhance visibility on radar for other vessels | 1 |
| 3 | radar reflector | maritime culture | Mandatory safety equipment on boats to improve visibility on radar for other vessels | 1 |
| 4 | radar reflector | maritime cultures | Required safety equipment for boats and ships to enhance visibility on radar systems, especially in low visibility conditions. | 1 |