Example image of eyePlorer eyePlorer map for 'Racon': Radar Transponder Acronym and initialism Frequency Morse code Plan position indicator Oil platform United States United States Coast Guard Buoy Coast Coral reef ITU-R Lighthouse S band X band Microsecond Nanosecond Duty cycle United Kingdom Battery (electricity) Ramark White Shoal Light (Michigan) Buzzards Bay Entrance Light MV Tricolor List of Lights Automatic Identification System Hellenic Coast Guard Foghorn Casquets Fastnet Rock Susitna River Lady Isle