A 12 GHz direct broadcast satellite link was found to experience 4 dB of rain attenuation at an elevation angle of $45^{\circ}$ for $0.01 \%$ of the time in an average year. What would be the rain attenuation measured at the same time percentage for the same site if the elevation angle were $10^{\circ}$ ? ( $\mathbf{1 0} \boldsymbol{\times} \mathbf{2} \boldsymbol{=} \mathbf{2 0}$ Marks) PART - B Answer any one question from each Module. Each question carries 20 marks.
Explanation
The formula used to calculate the rain attenuation at the new elevation angle is based on the relationship between the path length and the rain attenuation.
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