communication-systems Question 11
Question: Q. 4. A TV transmission tower antenna is at a height of $20 \mathrm{~m}$. How much range can it cover if the receiving antenna is at a height of $25 \mathrm{~m}$ ? $R$ [CBSE-SQP -2018]
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Solution:
Ans. Range $d=\sqrt{2 h R}+\sqrt{2 h_{R} R}$
$$ d=\sqrt{2 \times 20 \times 6.4 \times 10^{6}}+\sqrt{2 \times 25 \times 6.4 \times 10^{6}} $$
$$ \begin{equation*} d=33.9 \mathrm{~km} \tag{1} \end{equation*} $$
[CBSE Marking Scheme, 2018]
