InterviewSolution
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InterviewSolution
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Is it necessary for a transmitting antenna to be at the same height asthat of the receiving antanna for line of sight communication? A TV transmitting antenna is 81 m tall. How much service area can it cover, if the receiving antena is at the ground level?A. `3800 km^(2)`B. `3260 km^(2)`C. ` 7400 km^(2)`D. `3320 km^(2)` |
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Answer» Correct Answer - B Range `, d=sqrt(2hR )` `:.` Service area ` = pi xx 2hR ` `=(22)/(7) xx 2 xx 81 xx 6.4 xx 10^(6)` `= 3258.5 xx 10^(6) m^(2)= 3258.5km^(2)=3260 km^(2)` |
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