This feedhorn was designed to collect radio waves at the focus of the Parkes Radio telescope and to funnel them to a receiver. It was used during the 1969 Apollo 11 moon landing, when Parkes acted as a tracking station for NASA. The telescope was responsible for receiving radio signals transmitted by the Apollo spacecraft and lunar landing module, including critical telemetry data, as well as the now-famous live television images of the first ever moon walk by astronauts Neil Armstrong and Buzz Aldrin.