The heights of the transmitting and receiving | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) The maximum line-of-sight distance $d$ between a transmitting antenna of height $h_T$ and a receiving antenna of height $h_R$ is given by the form

Vedclass · Accepted Answer

$49.6$

Vedclass · Answer

(C) The maximum line-of-sight distance $d$ between a transmitting antenna of height $h_T$ and a receiving antenna of height $h_R$ is given by the formula: $d = \sqrt{2 R h_T} + \sqrt{2 R h_R}$.Given: $h_T = 33.8 \ m = 33.8 	imes 10^{-3} \ km$,$h_R = 64.8 \ m = 64.8 	imes 10^{-3} \ km$,and $R = 6400 \ km$.Substituting the values:$d = \sqrt{2 	imes 6400 	imes 33.8 	imes 10^{-3}} + \sqrt{2 	imes 6400 	imes 64.8 	imes 10^{-3}}$$d = \sqrt{12800 	imes 0.0338} + \sqrt{12800 	imes 0.0648}$$d = \sqrt{432.64} + \sqrt{829.44}$$d = 20.8 \ km + 28.8 \ km = 49.6 \ km$.

The heights of the transmitting and receiving antennas are $33.8 \ m$ and $64.8 \ m$ respectively. The maximum distance between the antennas for satisfactory communication in a line of sight mode is (Radius of the earth $= 6400 \ km$) (in $km$)

Similar Questions

The process of increasing the strength of a signal using an electronic circuit is called

Television signals broadcast from the moon can be received on the earth,while the $TV$ broadcast from Delhi cannot be received at places about $100 \, km$ distant from Delhi. This is because:

An antenna behaves as a resonant circuit only when its length is

In the process of modulation,........

$A$ carrier wave of peak voltage $15 V$ is used to transmit a message signal. What should be the peak voltage of the modulating signal in order to have a modulation index of $80\%$ (in $V$)?

Vedclass Test Series

Exam Paper Generator

Online Exam Module