Moonbounce: Bouncing Morse Code Off the Moon EME turns the Moon into a reflector and the delay into a signature. This guide covers the path, the losses and the CW culture that built it. Quick facts One-way distance ~384,000 km Echo delay ~2.5 seconds Path loss 250+ dB (2 m) Pioneer Project Diana, 1946 Founding mode CW Nothing else in the hobby feels like hearing your own signal return from another world. The stations are extreme and the signals are whispers, but the arithmetic closes - especially for operators whose ears were trained the slow way. Keep learning - decode morse code audio online: Morse Code Works - free Morse code tools and guides. Reference chart