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Centennial Celebration of San Lorenzo Island — Special Event Callsign OC100ISL The centennial of the occupation of San Lorenzo Island by the Peruvian Navy will be commemorated with the special event callsign OC100ISL. OC100ISL will be active throughout September 2026, and an eQSL will be issued to confirm each valid contact. Note: The IOTA SA-052 reference is valid only on September 25, 26, and 27, when operations will take place from San Lorenzo Island. BANDS HF: 80, 40, 20, 17, 15, 12,…