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← ScienceWhich radio signal degradation occurs during tropospheric ducting?
A)Increased signal multipath fading✓
B)Reduced atmospheric nitrogen absorption
C)Decreased ionospheric signal refraction
D)Enhanced geomagnetic field interference
💡 Explanation
Tropospheric ducting traps radio waves, causing increased signal reflections and constructive/destructive interference which results in increased multipath fading, because the signal reaches the receiver via multiple paths. Therefore, the signal degrades, rather than nitrogen absorbtion.
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