Question:
The maximum line-of-sight distance \(d\) between the transmitting antenna of height \(h_t\) and receiving antenna of height \(h_r\) in LOS communication is \((R=\) radius of the earth\()\)
The maximum line-of-sight distance \(d\) between the transmitting antenna of height \(h_t\) and receiving antenna of height \(h_r\) in LOS communication is \((R=\) radius of the earth\()\)
Show Hint
LOS distance is the sum of the individual horizon distances of the two antennas.
Updated On: Apr 29, 2026
- \(h_t+h_r\)
- \(\sqrt{h_t+h_r}\)
- \(\dfrac{h_t+h_r}{2}\)
- \(\sqrt{h_t}-\sqrt{h_r}\)
- \(\sqrt{2Rh_t}+\sqrt{2Rh_r}\)
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The Correct Option is
Solution and Explanation
The line-of-sight distance for two antennas is:
\[
d=\sqrt{2Rh_t}+\sqrt{2Rh_r}
\]
Hence,
\[
\boxed{(E)\ \sqrt{2Rh_t}+\sqrt{2Rh_r}}
\]
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