ISM is a sound and radio installation that exposes a vast expanse of radio space punctuated by machine communications. The installation consists of an antenna mast supporting three antennas, each of which is appropriate for reception in the industrial, scientific and medical (ISM) radio bands. Each antenna is connected to a computer-controlled radio receiver, each of which is tuned to a particular frequency in those bands (920MHz, 434MHz and 315MHz). These frequencies are used by such devices as keyless car entry systems, wireless sensor networks and utility meter transmitters to name a few. A set of speakers diuse the sound of the demodulated signals into the audio space around the installation, creating a sound composition wholly determined by the stochastic arrangement of devices operating within receiving range.