All of us are acquainted with CB (Citizen Band) radio and most of us have already accustomed with this popular instrument though the use of it is decreasing day by day. Instead of Ham radio is getting its popularity day by day as because of its wide range utility. Now we do not know what is ham radio and even the meaning of ham.
From dictionary meaning of ham is pig’s meat from leg or shoulder but here we get a complete different meaning for ham. You know that radio waves or electromagnetic wave play a very important role in radio communication. Over more than 100 years passed since the discovery of this technology and so many scientists are involved in its success.
There are 2 stories found about the origin of word HAM. According to the 1st story HAM was originated from the name of famous three scientists of early 20th century. The 2nd story of the word HAM originates from the name of three renowned ham operators.
It is noted that the word HAM was originated from three initial letters of famous scientist Heinrich Hertz, Edwin Armstrong and Gugleimo Marconi. Hertz was famous for inventing the electromagnetic wave, Armstrong was famous for FM frequency modulation theory and Marconi was famous for transmission of electromagnetic signal across the Atlantic.
Therefore the letter H comes from Hertz, the letter A comes from Armstrong and the letter M comes from Marconi. Finally HAM came into being. In the beginning of 20th century in the year 1908 all but a few operators became the members of a newly formed Radio club.
The most active operators in the name of Albert Hyman, Bob Almy and Poogie Murray had great contribution in building the ham radio club and according to their name a radio station was called “Hyman-Almy-Murray”. After a few years this so big name was coming much tiresome and need to be shortened.
The new name came as “HYALMU” which stands for a radio station. After another year of time the ham operators discovered a Mexican ship in the name of “HYALMU”. This created a great confusion among the operators and immediate change needed.
There was no alternative but only to take all the initial letters from the names of ham operators. As a result H coming from HY, A coming from AL and M coming from MU- the whole name came into being as HAM.
Ham radio or Amateur radio is not only a fun or an exciting hobby but also offers variety of activities in our modern life.
- Wireless talking around the globe.
- Talking across the city through the repeaters.
- Emergency communication in disasters.
- Public service and business communication.
- Contest and awards around the world.
- Amateur radio spread up to satellite in space.
- Talking by moon bouncing.
In USA over 6,00,000 ham radio operators have valid license and at least 2 million licensed ham radio operators exist in the world. They are most of the time are specialized in communicating in one or more modes of communications.
Some communication modes of Ham Radio:
- CW, carrier wave transmission using Morse code.
- Phone, two way voice communication with the help of microphone.
- HF/SSB, worldwide communication using high frequency.
- FM/Repeaters, “line of sight” for short transmission.
- Packet PSK-31, various form of data communication
Ham radio or amateur radio whatever we call it both are hobbies but the operators that are called as hams use various types of radio communication equipment in order to accomplish the job of fun, recreation, self training and emergency conversations during disaster.
It is estimated that 3 million people are involved in this type of radio communication all over the world. They are from different ages, sexes, income groups in the common interest of radio communication. If you are new and interested to use ham, you can try these portable ham radios for novice.
The ham radio operators not only enjoy their personal communication but also they help each other in emergency and disaster communication. This enables them to gather a vast practical knowledge in this field.
All the ham radio operators have the common basic knowledge of wireless technology, regulations, and operating principles. They all need to collect license from FCC passing an exam held under the supervision of FCC.
The radio spectrum is very vast that ranges from some khz to some ghz.You should know at least some important radio theory, Some FCC regulations, how radio works and some safety rules. We will try our level best for getting you the Technician license as because this is the basic license in order to operate on radio frequencies higher than 30 megahertz with some short waves.
Technician Class: This license is awarded after passing an exam of 35 questions out of which you must correct 26 answers. All answer is from multi-choices and questions are from basic electronic theory and FCC regulations. With this license you get the privilege of transmission 30 MHZ including 2 meter band frequency.
Operators may also operate 15, 40, 80 meter band using different modes. This is just similar to the exam of tech. class. Difference is the exam is a bit harder than previous one. The general class license holders enjoy the facility to transmit all over the globe.
The same procedure that has been applied in technician class is applied here; the difference is that the questions are selected from a larger pool than previous one. This class license exam consists of same 35 questions out of which you will have to correct at least 26 answers. The answers are from multiple choice styles.
Extra Class: In order to obtain this type of license you are to pass a harder exam consisting 50 questions. It covers the advanced electronic theory, FCC regulations and specialized operating practices and radio equipment design. In this case no Morse code is needed. The FCC allows any citizen to take ham test for free. After passing you can get a license for 10 years duration.