What causes radar clutter when two radar systems operate on similar frequencies?

• A. Signal interference
• B. Radar interference
• C. False echoing
• D. Feedback loop

Answer: (B)

Radar clutter occurs when two radar systems operate on similar frequencies due to radar interference. This phenomenon happens when the signals emitted by one radar system interfere with the signals of another, leading to confusion or overlap in the data they receive. The overlapping signals can result in misleading information being fed to the radar operators, creating returns that can mask actual targets or create ghost images of non-existent targets.

Radar systems rely on accurately distinguishing between the signals reflected from real aircraft and unwanted echoes from other sources. When interference is present from a nearby radar system using a similar frequency, it complicates this distinction and can lead to reduced accuracy in tracking and identifying actual air traffic. Thus, understanding radar interference is crucial in air traffic control to ensure seamless and safe operation within airspace.