However, television advertising tends to be expensive. Satellites Satellite technology is increasingly being used as a communication medium, particularly in remote locations where conventional telecommunications lines are not available. Dedicated hardware is needed to send and receive satellite transmissions. Microwaves Microwave technology is also increasingly being used as a medium for transmitting data. Microwave transmissions are useful in situations where conventional telecommunications lines are not available or desirable.
Dedicated hardware is needed to send and receive microwave transmissions.
For greater detail on communications, see Communications Technology .