The Airborne Measurement Facility (AMF) is a data collection and conversion system that provides a means for obtaining recorded data representing pulsed electromagnetic signals received on one of the two ATC radar beacon frequency bands that is selected for a given data collecting mission. The facility consists of two subsystems: (1) an airborne subsystem which collects and records data during flight, and (2) a ground playback facility which processes the data and transcribes it onto computer-compatible tape.