What is a spurious echo and how can you identify it?

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Multiple Choice

What is a spurious echo and how can you identify it?

A spurious echo is a false radar return caused by interference or internal radar artifact, not a real object. On the screen it can look like a solid target, but it isn’t tied to anything in the real world and often isn’t consistent with the environment. You identify it by how it behaves when you change the radar setup. If you alter range, bearing, or switch modes and the echo disappears, moves erratically, or vanishes, that points to a spurious return. Real targets tend to persist and move in a way that’s consistent with your own ship’s motion and the environment. Weather or land returns usually don’t disappear with routine setting changes in the same way, and they have characteristics that differ from a rogue radar artifact.

A spurious echo is a false radar return caused by interference or internal radar artifact, not a real object. On the screen it can look like a solid target, but it isn’t tied to anything in the real world and often isn’t consistent with the environment.

You identify it by how it behaves when you change the radar setup. If you alter range, bearing, or switch modes and the echo disappears, moves erratically, or vanishes, that points to a spurious return. Real targets tend to persist and move in a way that’s consistent with your own ship’s motion and the environment. Weather or land returns usually don’t disappear with routine setting changes in the same way, and they have characteristics that differ from a rogue radar artifact.

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