http://en.wikipedia.org/wiki/Jagadish_Chandra_Bose http://en.wikipedia.org/wiki/Jagdish_Chandra_Bose Through interesting and alternating "Clin d' Ailes" exhibitions, the club displays radio and transmission equipment of Swiss aviation troops collected over time. It also demonstrates the importance of radio in military aviation by operating the amateur radio station HB4FR. Thus it is possible to interest the numerous visitors in both radio technology and amateur radio.

Click on the marquee for a description of the exhibits from the collection of Dr Max de Henseler (HB9RS).
The Memento (provisionally in French) delivers some important characteristics of the objects. All the devices described are part of the collection.

The picture shows our two illustrious members and a legendary radio station:

• On the left side: Dr Max de Henseler (HB9RS); hisd historical collection of "Hallicrafters" radios is currently exibited. Max is an eminent personality in the amateur radio community. Learn more about Max
• On the right side: Astronaut Claude Nicollier, HB9CN. Claude is a member of our club and assists us especially in the context of our events with schoolchildren and students. [Learn more about our Swiss astronaut].

The radio between the two men is a short-wave SE-402 (transmitter-receiver 402), formerly used in the Swiss Army. These devices have been sold by the Americans in the post-war surplus under the name SCR-499/A. It is a station built on the basis of amateur radio Hallicrafters HT-4 and the tuning device AT-3, combined with receivers "Signal Corps" and BC-342 BC-312. In Switzerland the army station covered first the name SM46 and later SE 402.

Within the history of radio, several people were involved in the invention of radio and there were many key inventions in what became the modern systems of wireless. During the early development of wireless technology and long after its wide use, disputes persisted as to who could claim credit for the invention of radio:

• Jagadish Chandra Bose pioneered the investiagtion of radio and microwave optics
• Gugliegmo Marconi was an Italian inventor, and was (at first) credited with the invention of the radio, but he was later proven to have used 17 of Nikola Tesla's patents. In 1943, the radio patent by a vote by the United States Congress was reversed and given to Nikola Tesla.
• Nikola Tesla invented the fundamentals for the radio transmission before Marconi even thought of it
• Alexander Stepanovich Popov continued the experiments of other radio pioneers, such as Heinrich Hertz. In 1894 he built his first radio receiver, a version of the coherer