Ham radio probably gets back to the 19th century or the beginning of the 20th when ninety amateur stations serviced Canada and the United States. The appearance of ham radio has very much to do with hobby practices and experiments, and very often the contribution made to science and public services has been preponderant. Moreover, plenty of emergency cases had a happy end because of the intervention of ham radio operators.

Ham radio covers several types of transmissions and besides the quality FM (frequency modulation) that we are all familiar with, ham radio operators also work on single sideband with a higher transmission reliability or on the Morse code even if technology has come a long way since the days of the radio-telegraph. Presently, computers have changed the evolution of ham radio for ever, with the introduction of the digital modes and the development of the packet radio. Last but not least, ham radio operators manage to use the low power communications on shortwave bands to stay in real-time mode.

Ham radio through satellite signal is no longer out of reach with the existence of the orbiting satellites carrying amateur radio (OSCAR); all one needs is a basic hand-held transceiver to make the broadcast possible. Another interesting aspect is that ham radio operators use the moon and the aurora borealis to get a good reflection of the radio waves. Some ham radio stations have even got into contact with the International Space Station as the astronauts on board are also licensed as amateur radio operators. Discussions are in fact common practice among the individual hams who get on-air just to join one meeting or another.