Nowadays, many people prefer
to use TV and the internet rather than radio. They believe that radio has been
replaced by TV and the Internet. Besides their accessibility, TV and the
internet are also more sophisticated than radio. One of their sophistication is
visualization that radio does not possess. However, radio still has several
superiorities that cannot be replaced by the internet and TV.
The first superiority is as
an alternative when disaster happened. When an earthquake or tsunami occurs, it
usually damages electric power plant. As the consequence, the communication
devices that use electricity will be down. Therefore, communication devices
such as TV and the internet cannot be used when the earthquake or tsunami
occurs. The only one communication device that could be used in this situation
is radio. Although the electricity gets down, radio is possible to be used in
this situation. It is because many kinds of radios only use batteries. That is
the reason why the rescue squads use radio as an alternative in communicating
and evacuating people when the electricity is down due to earthquake damages.
Therefore, the internet and TV cannot replace radio in this situation.
The second superiority is as
a communication device in military operation. In the military operation,
strategy is an important part of military operation. In order to operate,
communication device is needed to implement the strategy. TV and the internet
cannot be used in this operation because both of the devices are too heavy and
the internet is also easy to be spied. That is the reason why combat troops use
radio in the military operation. So, the internet and TV cannot replace radio
in military operation.
The third superiority is as
a communication device with an aircraft. TV and the internet signal systems are
quite different. Radio system uses infrared to communicate with the other
devices. In order to communicate with an aircraft, airport usually uses radio.
Besides its scope range, radio is also used to communicate with an aircraft
because its infrared is invulnerable towards the extreme climate. So, the
communication between airplanes and the airports will run well.
As a final point, although
TV and the internet are more sophisticated than radio, it does not mean that TV
and the internet could replace radio because radio still has several
superiorities in some circumstances.
By: Muhammad Afdal | Hasanuddin University
Picture : www.freemake.com
0 komentar: