The SCR-270 radar detected incoming Japanese planes during which 1941 attack?

The SCR-270 radar detected incoming Japanese planes during which 1941 attack?

• A. Battle of Midway
• B. Pearl Harbor attack
• C. Battle of the Atlantic
• D. Guadalcanal campaign

Answer: (B)

Early warning radar is only valuable if the detected signal is interpreted correctly and acted on quickly. The SCR-270 operating on Oahu did pick up an approaching mass of Japanese aircraft on the morning of December 7, 1941, the Pearl Harbor attack. However, the information didn’t trigger an effective alert because the blips were misinterpreted or not promptly escalated to the defense commanders, and the attack proceeded with devastating surprise. The other options refer to events in different years or theaters and are not the 1941 event associated with this radar.

Early warning radar is only valuable if the detected signal is interpreted correctly and acted on quickly. The SCR-270 operating on Oahu did pick up an approaching mass of Japanese aircraft on the morning of December 7, 1941, the Pearl Harbor attack. However, the information didn’t trigger an effective alert because the blips were misinterpreted or not promptly escalated to the defense commanders, and the attack proceeded with devastating surprise. The other options refer to events in different years or theaters and are not the 1941 event associated with this radar.