Which of the following is a marking set beacon color combination?

Which of the following is a marking set beacon color combination?

• A. Red and Blue
• B. White and Infrared
• C. Green and Purple
• D. Black and White

Answer: (B)

Beacons marked for signaling are designed to be detected across different conditions and by different sensors. A marking set should be easy to spot with the naked eye in daylight and also detectable by specialized equipment using infrared wavelengths. White provides high visibility in daylight against most backgrounds, while infrared can be picked up by night-vision or IR cameras, ensuring the beacon is identifiable in low light or through camouflage. That combination—white for daytime visibility and infrared for IR detection—fits the need for reliable recognition across environments, which is why it’s the best choice. The other pairings rely solely on visible colors or don’t offer an infrared component, making them less versatile for marking sets that must be detected with both standard observation and infrared equipment.

Beacons marked for signaling are designed to be detected across different conditions and by different sensors. A marking set should be easy to spot with the naked eye in daylight and also detectable by specialized equipment using infrared wavelengths. White provides high visibility in daylight against most backgrounds, while infrared can be picked up by night-vision or IR cameras, ensuring the beacon is identifiable in low light or through camouflage.

That combination—white for daytime visibility and infrared for IR detection—fits the need for reliable recognition across environments, which is why it’s the best choice. The other pairings rely solely on visible colors or don’t offer an infrared component, making them less versatile for marking sets that must be detected with both standard observation and infrared equipment.