Expression for the LOS distance is _____ (km)(a) \(4.12(\sqrt{h_t}+\sqrt{h_r})\)(b) \(4.12(\sqrt{h_t}-\sqrt{h_r})\)(c) \(3.56(\sqrt{h_t}+\sqrt{h_r})\)(d) \(3.56(\sqrt{h_t}-\sqrt{h_r})\)I got this question in an online quiz.Origin of the question is Space Wave Propagation in portion Space Wave Propagation of Antennas

Expression for the LOS distance is _____ (km)(a) \(4.12(\sqrt{h_t}+\sq

1.	Expression for the LOS distance is _____ (km)(a) \(4.12(\sqrt{h_t}+\sqrt{h_r})\)(b) \(4.12(\sqrt{h_t}-\sqrt{h_r})\)(c) \(3.56(\sqrt{h_t}+\sqrt{h_r})\)(d) \(3.56(\sqrt{h_t}-\sqrt{h_r})\)I got this question in an online quiz.Origin of the question is Space Wave Propagation in portion Space Wave Propagation of Antennas
Answer» The correct answer is (a) \(4.12(\SQRT{h_t}+\sqrt{h_r})\) The explanation is: LOS is thedistance COVERED by a direct SPACE WAVE from TRANSMITTING to receiving antenna.Expression for the LOS distance is \(d = 4.12(\sqrt{h_t}+\sqrt{h_r})\) in km. Expression for the Radio horizon distance is \(d =3.56(\sqrt{h_t}+\sqrt{h_r})\) in km.

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