Radar Observer · Limitations — Side Lobes
Side-lobe echoes typically appear on the display as:
- AA single sharp target
- BA series of false echoes in an arc at the same range as a strong nearby target✓ Correct
- CRain clutter at long range
- DA second sweep trace
Explanation
Energy radiated in the antenna's side lobes returns from a strong close target and is painted at the same range on either side of the true echo, producing a row of false targets in an arc. Reducing gain helps suppress them.
Authority: Radar Navigation — False Echoes
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