KJ4KFJ — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Locator transmitted in a decoded message: EN74

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

1,617
Related messages
79
CQ messages
52
UTC dates heard
-7 dB
Mean decoder S/N

Bands

First seen: 2026-05-26
Last seen: 2026-08-23 23:09 UTC

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 UTCBandKJ4KFJ S/NCounterpartCounterpart S/NMsgsCapture
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.

80m
UTC    dB Audio  Message
010200  -5 1972  KJ4KFJ 9A5E JN75 (x15)
40m
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
20m
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
60m
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.