KF4BI — FT8 activity observed at SO8OO

DXCC entity inferred from callsign: United States Locator transmitted in a decoded message: EM81

Receiver-side FT8 activity involving KF4BI, decoded by SO8OO in southeastern Poland. 69 related FT8 messages, observed on 40m, 20m, across 8 UTC dates. Heard between 2026-06-09 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

69
Related messages
0
CQ messages
8
UTC dates heard
-4 dB
Mean decoder S/N

Bands

First seen: 2026-06-09
Last seen: 2026-08-23 02:00 UTC

Activity Heatmap

Locator transmitted by KF4BI

Approximate centre of EM81, decoded 2026-06-10 01:07 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 UTCBandKF4BI S/NCounterpartCounterpart S/NMsgsCapture
08-23 04:00 20m - / -9 TA2FE +4 / - 2 ✓ Closing fragment
08-23 03:34 20m - / - RK4H +1 / - 2 Partial capture
08-23 03:32 20m - / -14 UA3ZAB +12 / - 4 ✓ Closing fragment
08-23 03:30 20m - / -17 R4AEH -18 / - 3 Partial capture
08-23 03:25 20m - / - UT2AU -11 / - 2 ✓ Closing fragment
08-05 02:52 40m - / -3 G5TV -19 / - 3 ✓ Closing fragment
07-13 02:57 20m - / -5 R6OP -18 / - 5 ✓ Closing fragment
07-13 02:56 20m - / -16 RT6DU -6 / - 2 ✓ Closing fragment
07-13 02:53 20m - / - RT6DU -8 / - 2 Partial capture
07-07 00:37 20m - / - DL1BBO -5 / - 3 Partial capture
07-07 00:31 20m - / -10 HB9TIH -16 / - 6 ✓ Closing fragment
06-29 23:59 20m - / -2 DL9KM -16 / - 2 Partial capture
06-11 03:56 20m -9 / - KL5PF - / - 2 Partial capture
06-11 03:53 20m - / -6 R2EC +9 / - 3 ✓ Closing fragment
06-11 03:52 20m -4 / - R3YK +9 / -17 7 ✓ Closing observed
06-11 03:46 20m -17 / - KY4KY - / - 2 ✓ Closing fragment
06-11 03:43 20m - / -18 UA6HBJ +14 / - 3 Partial capture
06-11 03:41 20m -4 / - PE5I - / -17 3 Partial capture
06-11 03:39 20m -13 / - UR9QQ -2 / - 3 ✓ Closing observed
06-11 03:38 20m +4 / - NI7L - / -6 2 ✓ Closing fragment
06-11 03:36 20m -8 / - <...> - / -14 2 Partial capture
06-11 03:29 20m -9 / - OE6MDF - / -2 2 ✓ Closing fragment
06-10 01:08 40m - / -23 R2EA -2 / - 2 Partial capture
06-10 01:07 40m -15 / - KT5OT - / -8 3 ✓ Closing fragment
06-10 00:58 40m -9 / +3 F5RMK +4 / -5 5 ✓ Full exchange observed
06-10 00:56 40m -10 / - KC9TQV - / -8 2 Partial capture
06-10 00:46 40m - / - F5PBG -10 / - 4 Partial capture
06-10 00:42 40m -14 / -11 HB9EFK +4 / -8 4 ✓ Full exchange observed
06-10 00:25 20m - / -6 D2UY +7 / - 3 ✓ Closing fragment
06-09 23:20 20m -6 / - N2DMI - / - 3 Partial capture

Recent FT8 messages decoded at SO8OO

Frequency values are decoder audio offsets in hertz, not RF frequencies.

20m
UTC    dB Audio  Message
032630 -12  678  KF4BI UT2AU 73
033000 -15 1666  KF4BI R4AEH LN28 (x3)
033230 +15  663  KF4BI UA3ZAB KO80 (x3)
033400  +5 1075  KF4BI RK4H LO53
033400 +14  663  KF4BI UA3ZAB 73
033430  -3 1075  KF4BI RK4H LO53
034100  -5 1883  KF4BI EN35UKR +10
034830  -7  542  KF4BI A93MO RR73 (x2)
040000  +6 1463  KF4BI TA2FE -09 (x2)
40m
UTC    dB Audio  Message
005645 -10  893  KC9TQV KF4BI -08 (x2)
005845  -8 2537  F5RMK KF4BI EM81
005900  +7 2538  KF4BI F5RMK +03
005915 -10 2537  F5RMK KF4BI R-05
005930  +2 2538  KF4BI F5RMK RR73
005945 -10 2537  F5RMK KF4BI 73
010700 -13 1078  KT5OT KF4BI EM81 (x3)
010815  +1 2208  KF4BI R2EA -23 (x2)
025230 -15 1648  KF4BI G5TV IO93 (x3)

Decoder S/N history by band

Daily averages across messages associated with this profile as decoded at SO8OO.