Which of the following is NOT a recommended action when a radar alarm indicates high noise levels?

Prepare for the Operations Specialist (OS) A School Test 7. Enhance your radar operations skills with multiple choice questions, each offering hints and explanations. Ace the test with comprehensive study materials and practice quizzes.

When a radar alarm indicates high noise levels, the priority is to diagnose and reduce the noise rather than dismiss it. High noise can mask real targets or create false echoes, so simply ignoring the alarm risks degraded situational awareness and missed detections.

Verifying thresholds is important because you want to confirm the alarm is configured correctly and triggered by actual noise, not a mis-set limit. If the thresholds are off, you may be reacting to something that isn’t truly problematic or ignoring something that is.

Checking the environment helps identify external sources of clutter or interference—like weather, sea clutter, nearby equipment, or electrical interference—that can raise the noise level. Understanding the source guides what adjustments or actions are needed.

Adjusting gain tunes the radar’s sensitivity. If gain is set too high, noise can overwhelm the signal; if it’s too low, targets may be hard to see. Proper gain helps improve the signal-to-noise ratio and restore reliable detection.

Together, these steps address the cause of the high noise and restore reliable radar operation.