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The call JO2SUM looks like it could be from

Japan
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Search for JO2SUM. Search results: jo2sum : 3.
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Results 1 - 3 of 3. (0.029 seconds)
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QRZCQ - The database for radio hams 2026-02-16 04:55:00 UTC Call: Advanced Call: Pass: or Home Login Stream Buddies Chat OnAir Register Logbook Search DX-Tron ★ ARLog2 Ham Maps DX Cluster Search DX Map Hot DX DXpeds Last 24h Users only IOTA only SOTA only VLF only QRP only COTA only YOTA only WWFF only LH only HQ-Stations Field-Day Internal Resources Greyline Timezones DL DOKs Prefixes RU Oblasts IOTA SOTA Repeaters Manuals Mirrors Propinfo BC SWL Forums Articles News RSS Feeds Calendar Media Videos Swapmee...
http://qrzcq.com/log/JR9ECD - 270591 bytes
... 59 59 SSB 10m 28.430000 339 45 25 2025-10-26 02:32:28 -- JH4DIT 59 59 SSB 10m 28.430000 339 45 25 2025-10-26 02:31:18 -- JH1PXH 59 59 SSB 10m 28.430000 339 45 25 2025-10-26 02:24:53 -- JR3RVB 59 59 SSB 10m 28.430000 339 45 25 2025-10-26 02:23:04 -- JO2SUM 59 59 SSB 10m 28.430000 339 45 25 2025-10-26 02:22:07 -- JA9CXV 59 59 SSB 10m 28.430000 339 45 25 EU-022 2025-10-26 02:21:44 -- JA9BJS 59 59 SSB 10m 28.430000 339 45 25 2025-10-26 02:20:54 -- JG1BKX 59 59 SSB 10m 28.430000 339 45 25 2025-10-26 02:08:13 ...
http://qrzcq.com/log/YC0SJA - 279128 bytes
QRZCQ - The database for radio hams 2026-01-20 04:49:15 UTC Call: Advanced Call: Pass: or Home Login Stream Buddies Chat OnAir Register Logbook Search DX-Tron ★ ARLog2 Ham Maps DX Cluster Search DX Map Hot DX DXpeds Last 24h Users only IOTA only SOTA only VLF only QRP only COTA only YOTA only WWFF only LH only HQ-Stations Field-Day Internal Resources Greyline Timezones DL DOKs Prefixes RU Oblasts IOTA SOTA Repeaters Manuals Mirrors Propinfo BC SWL Forums Articles News RSS Feeds Calendar Media Videos Swapmee...
http://qrzcq.com/log/DV1DLX - 279342 bytes
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