This is an archive of the ∏-node radio laboratory, which was held in Berlin from January 24 to February 2, during CTM Festival 2014. Π-node took the form of a fragmented radio infrastructure, a multi-local-transceiver radio, with several nodes of transmission dispatched in the city (cf. Map). Each Π-node box was both a local sound-transmitter and reciever through microphone and audio-files sharing device. Π-node was also a continuous 240 hours radio program, the program was produced locally in a temporary studio, and a selection is archived below (cf. Schedule). In addition, two performances have been carried out collectively: in West Germany (2/02) and in DR-Kultur (7/02) (cf. below for the archive of the performances).