Creating Waves of Awareness
When calamity strikes, like the earth tremors and tsunami which struck Japan, the most important action to be done is to establish communications. Obviously all existing communication lines are already destroyed, transmitting and receiving towers are already flat and un-usable. So the only communication that can be established is Amature Radio Communication. All this needs is a radio (a small box with circutory), some wire to act as antenna and a 12 volts battery. All such emergency communication is done with a 12 volt battery since the battery is easily available from any car that is availabe even in damaged condition. There are two types of frequencies used for communicating.
All over the world, ham radio operators are operating their equipments every day and communicating. The official language of communication is English, though, when local hams are communicating, they talk in their own mother tongue or in their own national language. But when they communicate with hams from other countries, the language spoken is English.
All ham radio operators have a unique identification called CALL SIGN. This is given to them by the government of a country, where they have appeared and passed in a simple test of electronics and communicaation and a small test in morse communication (sending and receiving). The call signs contain some information about the country of origin. For example VU is for India. (Incidentally I am a ham and my call sign is VU3KUX)
The Ham radio operators speak in a language containing some cryptic words. Also they use some funny words, like fundamentals for parents, hormonics for son and daughter . All male are referred to as OLDMAN and all female are refered as YOUNG LADY, irrespective of age.
When calamity strikes in any area where communications are to be established, ham operators are to be transported to different parts of the area, where they will establish a network of communication stations and help in people from different areas communicating with each other. They can get information about their kith and kin and friends residing in different areas, since no external power is needed, this work is feasible. It takes hardly any time to establish a station. Connect a battery and tune the radio for a preplanned ham frequency and you are on. Hardly 5 minutes. Vhf radio is almost best suited for local communication. For communicating with international bodies, HF radio will be needed. VHF radio covers local areas and even up to say 100 km, when wave propagation is good. HF can cover entire world. Of course there will be some places where the communication will not be heard (hop frequency).
With a little bit of information, a small video is being presented which illustrates ham radio communication. The equipment shown in the video belongs to Mr. Rama Prabhu, who, is a veteran ham, teacher, research and development engineer and an avid designer of HF ham radios. His production models are very efficient in quality and are reasonably priced.
Please watch and comment.