The radio waves are omnidirectional. While the microwaves are directional. Radio waves are used for one sender and multiple receivers i.e. for multicusting property. Because of this multicast communication, it is used by radio, television, cordless phones and pagers. Radio waves is a general term to encompass frequencies in the range 3 KHz to 1 GHz. The microwaves ranges in frequencies between 1 to 300 GHz. Broadcast radio term may be informally used for the…"Wireless Transmission and Radio Waves."