Question

Suppose thatthere are two antennas A and B respectively. A is transmitter withheight 50 meters while B is receiver with height 15 meters.Considering LOS (Line-of-Sight),

a) Compute thathow much distance it should cover by transmission?

b) If distance is30 Km then what height is required for antenna B while consideringsame height of antenna A as mentioned in abovestatement?

Answer 1

Answer: (a) 45 km

(b) 53 km

Step-by-step explanation:

(a)

h = Height of antenna.

D =Distance between antenna's horizon in km

k =adjustment factor and it is 4/3 commonly.

Formula:

`D=3.57(√(kh_a)+√(kh_b))`

=3.57 x 12.64

= 45 km

(b)

Distance D=30km

`D=3.57√(kh)`

`30=3.57√(4h/3)`

h = (30 /4.122)²

h = (7.28)2 = 52.96 ˜ 53m.