Members of the group included Henri Abraham, Maurice de Broglie, Paul Laüt and Lucien Lévy.

The laboratory was in a wooden barracks on the Champ de Mars, and used the Eiffel tower as an antenna for 100 kW radio transmissions.

Levy developed in turn the first low frequency amplifier, which made it possible to listen to the enemy's telephone conversations, ground-based telegraphy, the first airplane receiver with vacuum tubes, the first wireless telegraphy station for automobiles and the superheterodyne receiver.

[4] In an improvement over Fessenden's design, the superheterodyne principle uses a variable oscillator and a fixed narrow filter to amplify an incoming AM radio signal.

In 1924 the horizontal polarized antenna let Levy obtain experiment results that confirmed the existence of the ionizing Kennelly-Heaviside Layer.

[9] However, Lévy spent more time improving his receivers than in managing the station, which did not gain a large audience.

[2] In May 1935 Lévy sold the station to Marcel Bleustein, the young boss of Publicis, who converted it into "Radio Cité".

Bleustein understood that to attract big advertisers the station operator had to conduct audience research, which led to more sponsored variety shows, light drama, games and popular songs.

[10] In 1930 Lévy made the radio equipment used by Jean Mermoz in his crossing of the South Atlantic.

[2] During World War II (1939–45), being Jewish, Lévy went into hiding during the German occupation of France.