Question:
derive an expression for the range of transmission via space wave from a transmitting antenna of height h
Answer:
The relation among radius of earth, height of antenna and range is, as below
Here, R= radius of earth
d= range
h= height of transmitting antenna
(R+h)2=R2+d2
R2+h2+2hR = R2+d2
d2= h2+2hR
but h<<R, so d2= 2hR
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