KJ4KFJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KJ4KFJ, decoded by SO8OO in southeastern Poland. 1,617 related FT8 messages, 79 CQ messages, observed on 80m, 60m, 40m, 20m, across 52 UTC dates. Heard between 2026-05-26 and 2026-08-23.
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 KJ4KFJ worked most often, as logged from our receiver:
Activity Heatmap
Locator transmitted by KJ4KFJ
Approximate centre of EN74, decoded 2026-08-23 00:04 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 | KJ4KFJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-24 00:44 | 80m | - / - | SV8JE | +6 / - | 5 | Partial capture |
| 08-24 00:40 | 80m | - / - | DH1KJ | +6 / - | 3 | Partial capture |
| 08-24 00:39 | 80m | - / - | DK5WL | -6 / - | 2 | Partial capture |
| 08-24 00:38 | 80m | - / - | 9A5E | -1 / - | 61 | Partial capture |
| 08-23 02:16 | 40m | - / - | EA5XA | -13 / - | 4 | Partial capture |
| 08-22 23:58 | 20m | - / - | IK2LRF | +1 / - | 5 | Partial capture |
| 08-22 23:56 | 20m | - / - | DL3RAJ | +2 / - | 6 | Partial capture |
| 08-22 23:52 | 20m | - / - | IK2LRF | -4 / - | 2 | Partial capture |
| 08-22 23:50 | 20m | - / - | DL3RAJ | +3 / - | 6 | Partial capture |
| 08-22 23:45 | 20m | -18 / - | VE7HAR | - / - | 2 | Partial capture |
| 08-22 23:45 | 20m | - / - | DL9KM | +1 / - | 7 | Partial capture |
| 08-22 23:45 | 20m | - / - | IW2MYH | -10 / - | 30 | Partial capture |
| 08-22 23:44 | 20m | -17 / - | W5TSU | - / -1 | 2 | ✓ Closing fragment |
| 08-22 21:37 | 20m | - / - | TA4SSK | -20 / - | 2 | Partial capture |
| 08-22 21:34 | 20m | -24 / - | K4SJR | - / - | 2 | Partial capture |
| 08-22 21:29 | 20m | - / -10 | EA1NT | -6 / - | 3 | Partial capture |
| 08-22 21:19 | 20m | - / -7 | IK4LZH | -10 / - | 2 | ✓ Closing fragment |
| 08-22 19:38 | 20m | - / - | S57LU | +7 / - | 3 | Partial capture |
| 08-22 19:34 | 20m | - / -14 | G4VJL | +5 / - | 2 | Partial capture |
| 08-22 18:00 | 20m | - / - | M8GGQ | +8 / - | 3 | Partial capture |
| 08-22 17:42 | 20m | - / +1 | WK1O | -14 / - | 2 | ✓ Closing fragment |
| 08-20 15:28 | 20m | - / - | F4VTR | -10 / - | 3 | Partial capture |
| 08-20 15:17 | 20m | - / - | M0IEP | -8 / - | 3 | Partial capture |
| 08-19 18:29 | 20m | - / - | M0IEP | -12 / - | 4 | Partial capture |
| 08-19 17:24 | 20m | - / - | F8PRC | -14 / - | 4 | Partial capture |
| 08-19 17:05 | 20m | - / - | F8PRC | -14 / - | 2 | Partial capture |
| 08-17 21:38 | 20m | - / -13 | GD7RVP | -16 / - | 2 | Partial capture |
| 08-14 23:19 | 20m | - / - | IZ3EAW | -16 / - | 6 | Partial capture |
| 08-14 22:52 | 20m | - / - | DL1R | -3 / - | 7 | Partial capture |
| 08-14 22:52 | 20m | - / - | IU3QWQ | -20 / - | 11 | Partial capture |
| 08-14 21:54 | 20m | - / -14 | IU2WCY | -19 / - | 7 | ✓ Closing fragment |
| 08-14 21:49 | 20m | - / - | IU2WCY | -12 / - | 3 | Partial capture |
| 08-14 21:38 | 20m | - / -7 | HB9SZV | -7 / - | 3 | ✓ Closing fragment |
| 08-14 21:29 | 20m | - / -9 | SV5BYP | -21 / - | 4 | ✓ Closing fragment |
| 08-14 21:17 | 20m | - / - | EA4HOS | -17 / - | 2 | Partial capture |
| 08-04 22:38 | 20m | - / -9 | IK4LZH | -5 / - | 5 | Partial capture |
| 08-04 22:37 | 20m | - / - | DL9KM | -9 / - | 4 | Partial capture |
| 08-04 22:32 | 20m | - / - | IW2ENA | -18 / - | 2 | Partial capture |
| 08-04 22:26 | 20m | - / - | E70SZ | -7 / - | 2 | Partial capture |
| 08-04 15:53 | 20m | - / - | EA5AOP | -4 / - | 2 | Partial capture |
| 08-04 00:28 | 40m | - / -21 | EC3A | -18 / - | 2 | Partial capture |
| 08-04 00:28 | 40m | - / -14 | F1PBZ | -6 / - | 2 | Partial capture |
| 08-04 00:28 | 40m | - / - | UA4FKT | +4 / - | 2 | Partial capture |
| 08-04 00:26 | 40m | - / -10 | OS4K | -23 / - | 3 | Partial capture |
| 08-03 14:53 | 20m | - / - | ON7PS | -10 / - | 2 | Partial capture |
| 08-03 14:43 | 20m | - / - | DK3HV | -12 / - | 2 | Partial capture |
| 08-03 00:57 | 40m | - / +4 | OS4K | -22 / - | 2 | Partial capture |
| 08-03 00:56 | 40m | - / -3 | F1PBZ | -6 / - | 2 | Partial capture |
| 08-03 00:43 | 20m | - / - | HZ1ES | -8 / - | 4 | Partial capture |
| 08-01 01:35 | 40m | - / - | DH2YBG | -7 / - | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 010200 -5 1972 KJ4KFJ 9A5E JN75 (x15)
UTC dB Audio Message 002715 -24 1931 KJ4KFJ OS4K -10 (x2) 002815 -6 2636 KJ4KFJ F1PBZ -14 002815 -4 2813 KJ4KFJ UA4FKT LO23 002845 -6 2635 KJ4KFJ F1PBZ -14 002845 -16 1147 KJ4KFJ EC3A -21 002845 +11 2813 KJ4KFJ UA4FKT LO23 002915 -19 1147 KJ4KFJ EC3A -22 021600 -15 2646 KJ4KFJ EA5XA IM98 (x4) 022130 -22 1435 N9HSJ KJ4KFJ R-07 022315 -12 2318 KJ4KFJ SP9WLC -16 022315 +3 706 KJ4KFJ EW4DX KO23
UTC dB Audio Message 235845 +0 2066 KJ4KFJ IK2LRF JN45 235845 -16 2266 KJ4KFJ IW2MYH JN45 235900 -22 1484 CQ KJ4KFJ EN74 a1 235915 +0 2066 KJ4KFJ IK2LRF JN45 235915 -16 2266 KJ4KFJ IW2MYH JN45 235930 -19 1485 CQ KJ4KFJ EN74 235945 +3 2066 KJ4KFJ IK2LRF JN45 235945 -8 2266 KJ4KFJ IW2MYH JN45 (x2) 000015 -14 1617 KJ4KFJ IW5ALZ JN53 000045 +1 2066 KJ4KFJ IK2LRF JN45 000045 -13 2266 KJ4KFJ IW2MYH JN45 (x3) 000400 -23 1485 CQ KJ4KFJ EN74 a1
UTC dB Audio Message 020200 +10 2763 KJ4KFJ 9A4ZM JN86 (x2)
Decoder S/N history by band
Daily averages across messages associated with this profile as decoded at SO8OO.