Question

Why a signal transmitted from a TV tower cannot be received beyond a certain distance? Write the expression for the optimum separation between the receiving and the transmitting antenna. ??​

Answer 1

Answer:

No, it is not necessary for a transmitting antenna and the receiving antenna to be at the same height. Because in this specific case of transmission there is no physical obstruction between the transmitter and the receiver.

(b) Height of the given antenna, h = 81 m

Radius of earth, R = 6.4 × 106 m

For range, d = (2Rh)1/2, the service area of the antenna is given by the relation:

A = π d2

= π (2Rh)

= 3.14 × 2 × 6.4 × 106 × 81 m2

= 3255.55 × 106 m2

~ 3256 km2

[As 1km = 103 m , so 1km2 = 106 m2]

Answer 2

Answer:

HEYA!

Refer to the attachment above...

Refer to the attachment above...Hope it helps you!

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