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Which risk increases when aiming a phased-array radar at low grazing angles?

A)Specular multipath signal interference
B)Ionospheric signal dispersion effects
C)Atmospheric ducting signal capture
D)Rain fade signal depolarization

💡 Explanation

Specular multipath interference significantly increases because low grazing incidence causes strong reflections from smooth surfaces; the multiple signals interfere. Therefore, range and angle accuracy decreases, rather than effects due to ionosphere, ducting, or rain.

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