{{unreferenced, date=December 2013 SMA - Segnalamento Marittimo e Aereo was an Italian

radar Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track ...

manufacturer for naval, aerial and terrestrial use, in operation between 1943 and 1994.

History

SMA was founded on August 2, 1943 in

Florence Florence ( ; ) is the capital city of the Italy, Italian region of Tuscany. It is also the most populated city in Tuscany, with 362,353 inhabitants, and 989,460 in Metropolitan City of Florence, its metropolitan province as of 2025. Florence ...

by Giuseppe Salvini, Lorenzo Fernandes, Enrico Bocci. In 1948, the development of

equipment was influenced by

Nello Carrara Nello Carrara (19 February 1900 – 5 June 1993) was an Italian physicist and founder of the Electromagnetic Wave Research Institute. He researched X-rays and was a pioneer of radar, but is best known for coining the term "microwave". Bio ...

. In 1988, the EFIM public group purchased a majority interest in the company's capital, controlling 98.8% of the shares. Following the collapse of EFIM, in 1988, "SMA" was merged with Officine Galileo, part of

Finmeccanica Leonardo S.p.A., formerly Leonardo-Finmeccanica and originally Finmeccanica, is an Italian multinational company specialising in aerospace, defence and security. Headquartered in Rome, the company has 180 sites worldwide. It is the 12th largest ...

. Defence companies of Italy Manufacturing companies based in Florence Radar equipment of the Cold War Technology companies established in 1943 Italian companies established in 1943