UNIT_01.pdf

INTRODUCTION TO RADIO An Introduction to Radio Radio is a medium of communication. It is a wireless set. Radio can transmit messages all around the world instantly, and the message can be received in any part of the globe. It's no secret that radio is the most popular form of public commu...

INTRODUCTION TO RADIO An Introduction to Radio Radio is a medium of communication. It is a wireless set. Radio can transmit messages all around the world instantly, and the message can be received in any part of the globe. It's no secret that radio is the most popular form of public communication today. It's solely a sound-based medium. As a performer, you can't see your audience. That's why it's called a "blind medium" An Introduction to Radio It gives a lot of room for the listeners imagination. Aside from that, it is a very personal medium because the broadcaster always addresses the listener in the singular form as though he/she is talking to him alone.  Hertz, a German scientist, was the first person to use a simple device to make electromagnetic waves. But the waves that he made could not travel far. In 1885, an Italian scientist named Marconi came up with electromagnetic waves that could carry messages over long distances. These electromagnetic waves travel at an amazing speed of 300,000 km per second and cover the surface of the earth in the same second. Characteristics of Radio Radio as a mass medium Radio is portable Radio is a low-cost medium Radio does not need electric power supply Radio is a medium of immediacy Limitations of Radio Radio relies only on the ability to hear. There are no pictures in it Radio broadcast is not supported by the powerful medium of visual, unlike television. One Chance medium Range and Signal Bandwidth Radio lacks permanence Limitations of Radio Poor performance on the part of annocers. Radio Does not hold listeners' full attention Radio can suffer from interference  Thank you!!!!