1 July 2026

Clandestine radio stations

Explore the hidden world of clandestine radio stations, pirate broadcasts, and secret wartime transmitters that shaped the history of radio communication. On Radio TSF, discover remarkable stories of underground resistance radios, Cold War propaganda stations, covert political broadcasts, and illegal transmitters that challenged governments and crossed borders during the golden age of wireless communication. From World War II secret networks to mysterious pirate stations of the 1950s and beyond, these historical articles reveal how clandestine radio became a powerful tool for resistance, espionage, propaganda, and free expression across Europe and the world. Dive into rare archives, forgotten voices, and fascinating true stories from the history of shortwave, TSF, and underground broadcasting.

After the Liberation of Paris, the U.S. Broadcast Two Secret Fake Radio Stations

9 March 2026 0

“Les radios” refers not to the medium in general, but to individual stations, the specific broadcasters, voices and frequencies that populated the airwaves in radio’s formative decades.

“Au temps de” means “in the time of” or “in the age of”, a phrase with a distinctly nostalgic, almost romantic flavour in French. It evokes a lost era, a world that was, rather than a simple historical period.

“La TSF” Télégraphie Sans Fil, literally “wireless telegraphy”, was the word ordinary French people used for radio throughout the 1920s, 30s and 40s, long before “la radio” became the common term. Crucially, it carries enormous emotional weight: it conjures the crackling family receiver in the living room, the amateur enthusiast building his own set from spare parts, the Resistance operator tapping out morse code in an attic. For anyone with a passion for broadcast history, TSF is not a technical term, it’s a time machine.

So the title really means something closer to: “Radio stations from the golden age of wireless”, a deliberate, affectionate nod to the era when broadcasting was still young, still miraculous, and the act of pulling a human voice out of thin air felt like nothing short of magic.