Introduction of Radio Advantage & Disadvantage of Radio.

 

TOPIC: Introduction of Radio Advantage & Disadvantage of Radio.          

                                                                                         
CONTENT
 Introduction  A brief history of radio  Uses of radio  Advantages of radio  Disadvantages of radio                

INTRODUCTION

Radio enables distant communication. Radio broadcast it simply refers an audio form of communication, and using radio waves , an electromagnetic radiation to broadcast from a transmitter to a receiving antenna. In order to transmit the same kind of programming, stations are connected to all the radio networks. Today we have many radio stations all over the world broadcasting by the means of transmission. Radio stations are usually connected to radio networks for transmitting the same kind of programming either in syndication or simulcast or both. It has been revealed that audio broadcasting can also be done through cable FM, local wire networks satellite and internet. Radio broadcast introduction further shows that the broadcasting process is not complicated at all since the essential equipments are easily available today.
As we know there are different types of radio stations but the best known kind of radio stations are the ones that broadcast through radio waves. These generally consists of AM and FM stations. There are also various subtypes which include commercial, public and non profit varieties. Other subtypes also further include student run campus radio as well as hospital radio. However, in this internet world, now we also have internet radio broadcast.
Though internet distributed radio has now eclipsed the radio broadcasting yet there are also radio stations that generally broadcast on shortwave bandwidth with the use of AM technology reaching good distances. As a matter of fact, bad weather conditions can usually affect radio broadcasting. Apart from the normal FM radio and internet radio, there is also satellite radio. Satellite radio which is also called subscription radio, broadcasts by a communication satellite, covers a much wider geographical range than territorial radio signals. However, the world of digital radio broadcasting is not static.

A BRIEF HISTORY OF RADIO

Many people worked to make radio possible. Heinrich Rudolf Hertz in Germany first showed that radio waves exist. Guglielmo Marconi in Italy made radio into a practical tool, and is sometimes said to have invented radio. Nikola Tesla in the States made the first practical radio that sent audio (sound) signals.
USES OF RADIO

 Radio is a way to send electromagnetic signals over a long distance, to deliver information from one place to another.  A machine that sends radio signals is called a transmitter, while a machine that "picks up" the signals is called a receiver.   When radio signals are sent out to many receivers at the same time, it is called a broadcast.  Television also uses radio signals to send pictures and sound.  Sound can be sent by radio, either through Frequency Modulation (FM) or Amplitude Modulation (AM).  Radio was first created as a way to send telegraph messages between two people without wires, but soon two-way radio brought voice communication, including Walkie-talkies and eventually mobile phones.   Radio shows were used before there were TV programs.  In the 1930s the US President started sending a message about the country every week to the American people.  Companies that make and send radio programming are called radio stations.
 These are sometimes run by governments, and sometimes by private companies, who make money by sending advertisements.  Other radio stations are supported by local communities.  These are called community radio stations.   Radio waves are still used to send messages between people.  Talking to someone with a radio is different than "talk radio".   Citizen band radio and amateur radio use radio.   Policemen, firemen and other people who help in emergency use a radio emergency communication system to communicate (talk to each other).   It is like a mobile phone, (which also uses radio signals) but the distance they reach is shorter and both people must use the same kind of radio.

ADVANTAGES OF RADIO

  A universal medium. Can be enjoyed at home, at work, and while driving. Most people listen to the radio at one time.  Permits you to target your advertising spends to the market most likely to respond to your offer.  Permits you to create a personality for your business using only sounds and voices.  It is also illiterate persons medium.  Can be customized from region to region.  Least inflated medium. During the past ten years, radio rates have gone up less than other media.  

DISADVANTAGES OF RADIO
 
 Radio is a background medium. Most listeners are doing something else while listening, which means your ad has to work hard to be listened to and understood.   Listeners cannot refer back to your ads to go over important points.   Ads are an interruption to the entertainment. Because of this radio ads must be repeated to break through the listener’s tune out factor.   Not as fast as using a phone or internet; could take a little bit.  The line could get fuzzy, or not clear.                  
Reference  Mass communication