ERROR: No data for call JK4UAO/4 found in our database!
The call JK4UAO/4 looks like it could be from

Japan
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Search for JK4UAO/4. Search results: jk4uao : 13, 4 : stopword.
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Results 1 - 10 of 13. (0.068 seconds)
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QRZCQ - The database for radio hams 2026-04-07 06:14:14 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/JE3BBA - 132938 bytes
QRZCQ - The database for radio hams 2026-03-20 04:58:53 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/JJ1NYA - 284791 bytes
QRZCQ - The database for radio hams 2026-04-08 04:51:07 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/JE1UFF - 257733 bytes
QRZCQ - The database for radio hams 2026-03-29 05:25:49 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/VK6MLL - 281141 bytes
QRZCQ - The database for radio hams 2026-04-01 06:39:41 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/YD0DMS - 249916 bytes
QRZCQ - The database for radio hams 2026-03-24 06:44:22 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/7N4PIC - 267129 bytes
QRZCQ - The database for radio hams 2026-04-05 05:42:57 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/UA0CQD - 295145 bytes
QRZCQ - The database for radio hams 2026-04-06 06:11:04 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/JF3INI - 267487 bytes
... CW 30m 10.1281 2015-11-08 07:22:00 -- JM7UBI 599 599 CW 30m 10.1260 2015-11-08 00:13:00 -- JS1CII 599 599 CW 30m 10.1270 2015-11-07 23:06:00 -- 8N2KCJ 599 599 CW 80m 3.51200 2015-11-02 21:53:00 -- JA4GXS/6 599 599 CW 40m 7.01720 2015-10-31 12:08:00 -- JK4UAO/4 59 59 DIG 70cm 430 2015-10-25 06:54:00 -- JG8NKJ 599 599 CW 30m 10.1200 2015-10-12 08:28:00 -- JS3QBP 599 599 CW 40m 7.00800 2015-10-12 08:20:00 -- JA1KJW/6 599 599 CW 40m 7.00692 2015-10-12 08:16:00 -- JH5EZB/5 599 599 CW 40m 7.01150 2015-10-12 ...
http://qrzcq.com/log/JO4EUP - 270979 bytes
QRZCQ - The database for radio hams 2026-03-24 06:34:01 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/JR2PZX - 270261 bytes