Question

Distinguish btwentypes of propagation based on communication system

Answer 1

As we have seen, modulation is used to encode the information onto

a carrier wave, and may involve analog or digital methods.

It is only the characteristics

of the carrier wave which determine how the signal will propagate over any significant

distance.

The part that enters the new medium is

called the transmitted portion and the other the reflected portion.  The part which

is reflected has a very simple rule governing its behavior.  Make the following

construction:

Answer 2

Answer:

As we have seen, modulation is used to encode the information onto

a carrier wave, and may involve analog or digital methods.

It is only the characteristics

of the carrier wave which determine how the signal will propagate over any significant

distance.

The part that enters the new medium is

called the transmitted portion and the other the reflected portion.  The part which

is reflected has a very simple rule governing its behavior.  Make the following

construction: