HK4J — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving HK4J, decoded by SO8OO in southeastern Poland. 441 related FT8 messages, 2 CQ messages, observed on 60m, 40m, 20m, 10m, across 34 UTC dates. Heard between 2026-05-03 and 2026-07-22.
These are automated observations at the SO8OO receiver, not the station's official logbook. Times are UTC. Decoder S/N describes messages received at SO8OO; inferred entity and location data may be inaccurate for portable, remote or special-event operation.
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Overview
Frequent QSO partners observed at SO8OO
Stations HK4J worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by HK4J
Approximate centre of FJ26, decoded 2026-07-22 03:32 UTC. A transmitted locator is not proof of the operator's permanent location.
Observed FT8 exchanges
S/N cells show: decoded at SO8OO / report transmitted by the counterpart. An observed exchange is not a QSL or an official logbook confirmation.
| Time UTC | Band | HK4J S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-23 01:54 | 20m | - / -3 | A61QQ | -14 / - | 2 | ✓ Closing fragment |
| 07-22 03:32 | 20m | -21 / - | HZ1TT | - / -9 | 2 | Partial capture |
| 07-14 03:26 | 20m | - / - | RY6O | -14 / - | 2 | Partial capture |
| 07-14 02:03 | 20m | - / - | ON6AA | -14 / - | 2 | Partial capture |
| 07-12 03:50 | 20m | - / -19 | R4AEH | -22 / - | 3 | ✓ Closing fragment |
| 07-12 03:42 | 20m | - / -20 | RK6J | -21 / - | 4 | Partial capture |
| 07-12 03:42 | 20m | - / -19 | RA6BX | -18 / - | 3 | Partial capture |
| 07-12 03:37 | 20m | - / - | RU1AT | -24 / - | 2 | ✓ Closing fragment |
| 07-12 03:35 | 20m | - / -6 | RV6FT | +6 / - | 3 | ✓ Closing fragment |
| 07-12 03:27 | 20m | -19 / - | EW1MN | - / -23 | 2 | ✓ Closing fragment |
| 07-12 02:54 | 20m | -23 / - | ES2DR | - / -6 | 2 | ✓ Closing fragment |
| 07-11 03:12 | 20m | - / -6 | UA3GPM | -14 / - | 2 | ✓ Closing fragment |
| 07-09 05:18 | 20m | - / -8 | RZ3EM | -10 / - | 2 | ✓ Closing fragment |
| 07-09 05:05 | 20m | - / - | UA9LAO | -7 / - | 3 | Partial capture |
| 07-09 05:01 | 20m | - / -9 | R3OR | -2 / - | 2 | ✓ Closing fragment |
| 07-09 05:00 | 20m | - / - | UR5LMB | -18 / - | 4 | Partial capture |
| 07-09 04:31 | 20m | - / - | UA9WV | -12 / - | 3 | ✓ Closing fragment |
| 07-09 04:19 | 20m | -21 / -11 | R6SS | -15 / - | 4 | ✓ Closing observed |
| 07-09 04:02 | 20m | -23 / -13 | 4X1DA | -15 / - | 3 | ✓ Closing observed |
| 07-09 03:58 | 20m | -23 / - | RL6MT | - / -8 | 2 | ✓ Closing fragment |
| 07-09 03:52 | 20m | -22 / - | HK4JC | - / -3 | 2 | Partial capture |
| 07-09 03:43 | 20m | - / -8 | RX9WN | +2 / - | 2 | ✓ Closing fragment |
| 07-09 03:38 | 20m | -24 / - | EX8QD | - / - | 2 | Partial capture |
| 06-30 01:45 | 20m | - / - | KB2QCJ | -17 / - | 2 | Partial capture |
| 06-30 01:39 | 20m | -17 / - | 4A1MTY | - / -14 | 3 | Partial capture |
| 06-30 01:34 | 20m | -17 / - | HI3WWA | - / -8 | 2 | Partial capture |
| 06-30 01:33 | 20m | -17 / - | TM8WWA | - / -8 | 2 | Partial capture |
| 06-30 01:29 | 20m | -15 / - | DL1R | - / -2 | 3 | Partial capture |
| 06-28 03:00 | 20m | -20 / - | WL7E | - / -14 | 2 | Partial capture |
| 06-28 02:59 | 20m | -18 / - | UA2FFD | - / -18 | 2 | Partial capture |
| 06-28 02:57 | 20m | -18 / - | Z62NS | - / -13 | 2 | ✓ Closing fragment |
| 06-27 02:48 | 20m | -20 / - | 7Z1MM | - / -12 | 2 | Partial capture |
| 06-27 02:03 | 20m | -22 / - | 7Z1MM | - / -7 | 4 | Partial capture |
| 06-26 03:17 | 20m | -20 / - | 7Z1SJ | - / - | 2 | Partial capture |
| 06-26 03:06 | 20m | -20 / - | TA4INO | - / - | 6 | Partial capture |
| 06-26 03:02 | 20m | -21 / - | 3G0YM | - / -17 | 3 | Partial capture |
| 06-26 03:01 | 20m | -21 / - | TA4INO | - / -10 | 2 | Partial capture |
| 06-20 02:52 | 20m | -12 / - | Z62NS | - / -6 | 2 | Partial capture |
| 06-20 02:49 | 20m | -14 / - | LA9GX | - / -4 | 4 | Partial capture |
| 06-20 02:47 | 20m | -17 / - | A61CK | - / -11 | 3 | Partial capture |
| 06-20 02:42 | 20m | -12 / - | RA3TKS | - / -13 | 2 | Partial capture |
| 06-20 02:41 | 20m | - / -8 | A71QQ | +5 / - | 2 | ✓ Closing fragment |
| 06-20 02:39 | 20m | -12 / - | UA3DIB | - / -8 | 2 | ✓ Closing fragment |
| 06-20 00:21 | 20m | -10 / - | A61CK | - / - | 2 | Partial capture |
| 06-20 00:17 | 20m | -9 / -9 | <...> | +5 / - | 2 | Partial capture |
| 06-20 00:09 | 20m | -8 / - | A61CK | - / -18 | 2 | Partial capture |
| 06-20 00:08 | 20m | -8 / - | UK8OM | - / - | 2 | Partial capture |
| 06-19 23:37 | 40m | - / -17 | SN5JU | +14 / - | 2 | ✓ Closing fragment |
| 06-16 01:05 | 20m | -8 / - | UK8OM | - / -9 | 2 | Partial capture |
| 06-15 03:36 | 20m | -13 / -13 | RW1AX | -23 / -19 | 7 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 031830 -24 1704 HK4J RY6O KN87 (x3) 025345 -24 1644 OK1JAZ HK4J RR73 032830 -22 1842 HK4J UA6LET -11 042100 -18 1482 TA4KO HK4J -18 032545 -22 1704 TA1BJ HK4J RR73 032645 -21 1704 RZ4AZ HK4J RR73 033115 -22 1783 SQ9JKM HK4J RR73 033215 -21 1783 HZ1TT HK4J FJ26 (x3) 015400 -14 913 HK4J A61QQ R-03 (x2) 015945 -10 688 HK4J 7Z1BQ RR73
UTC dB Audio Message 233715 +9 2903 HK4J SN5JU -17 (x2)
UTC dB Audio Message 214615 -20 1667 KE2INI HK4J RR73 214945 -24 1669 OK1DXR HK4J RR73 215745 -23 1635 CU6AB HK4J -07 215845 -3 1703 HK4J F5IGF JN07 (x4)
UTC dB Audio Message 032800 -14 1606 HK4J DC4CP JO30 (x4)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.