Organisasi Amatir Radio Indonesia Daerah Sulawesi Barat
Mark, XE1B will be active as XF4B from Socorro Island, Revillagigedo Islands, IOTA NA – 030, starting 25 October 2025.
He will operate on 80 – 6m, SSB, FT8, during 36 hours.
Recent DX Spots XF4B
XF4B Log search QSL via ClubLog OQRS.
Socorro Island, Revillagigedo Islands, Mexico. Author – Mathieu Chardonnet.
XF4B. Where is Socorro Island located. Map.
XF4B. Sunrise 10-23-2025 at 13:19 GMT sunset at 00:56 GMT