question_answer

Sky waves are not used in transmitting T.V. signals. Why? State two factors by which the range of transmission of T.V. signals can be increased.  

Answer:

                TV signals have a frequency of 100 to \[\text{22}0\text{ MHz}\] which cannot be reflected by the ionosphere. So transmission of TV signals via sky wave is not possible. Range of TV transmission can be increased by using (i) tall antenna and (ii) geo stationary satellites.