Distinguish between Sky wave and Space wave modes of propagation in a communication system.

Distinguish between 'sky waves' and 'space waves' modes of propagation in communication system. (a) Why is sky wave mode propagation restricted to frequencies upto 40 MHz?

Distinguish between .sky waves. and .space waves. modes of propagation in communication system. Why is sky wave mode propagation restricted to frequencies upto 40 MHz?

Distinguish between 'sky wave' and ' space wave' modes of propagation. Why is the sky wave mode of propagation restricted to frequencies upto 40 MHz ?

Distinguish between sky wave and space wave modes of communication. What is the main limitation of space wave mode? Write the expression for the optimum separation between the transmitting and receiving antenna for effective reception of signals in this mode of communication.

Distinguish between sky wave and space wave propagation. Give a brief description with the help of suitable diagrams indicating how these waves are propagated.

Space wave propagation is used in

Differentiate between ground waves and sky waves propagation.

The space wave propagation is