KB4FSU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving KB4FSU, decoded by SO8OO in southeastern Poland. 3 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-04.
These are automated observations at the SO8OO receiver, not an official contact log. Times are UTC. Attribution follows decoded FT8 message structure: CQ uses the first token and directed-looking messages use the second. Free text that resembles a directed message can be attributed imperfectly. Summary S/N reflects propagation plus SO8OO receiver, antenna and local-noise conditions. Counts are not adjusted for monitoring outages; transmissions that were not decoded are absent. Inferred entity and location data may be inaccurate for portable, remote or special-event operation.
SO8OO decoded 3 FT8 messages attributed to KB4FSU as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 40 m (100%). The sample is too small to infer a recurring UTC-hour or received-S/N pattern.
Overview
Observed FT8 message patterns
- Attributed sample
- 3 messages
- Active dates
- 1 UTC dates
- S/N summary
- Too few decodes
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
WSJT-X defines S/N reports against a 2,500 Hz reference noise bandwidth. The ranges above are SO8OO receiver-side display categories, not official WSJT-X classes, transmitter-power measurements or estimates of how easy the station is to hear elsewhere. Statistics include only successful decodes on SO8OO's monitored FT8 channels; transmissions that were not decoded are absent. The sample does not meet the threshold for a recurring time or signal-pattern claim (20 attributed messages, three UTC dates and five distinct 15-minute windows).
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with KB4FSU in decoded directed-looking exchanges:
Most frequent locator attributed to KB4FSU
The map compares the centres and boundaries of the locator field attributed to this token by decoded message structure, 2° × 1° as a Maidenhead square, and SO8OO's six-character receiver square. The separation is not an exact antenna-to-antenna distance or a radio-path length.
- Attributed locator
- EL98 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 8,464 km (approx.)
- Last such locator decoded
- 2026-09-04 01:50 UTC
A decoded locator can describe portable, remote or special-event operation and is not proof of a permanent station address or transmitter identity.
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 | KB4FSU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-06 05:06 | 40m | - / -18 | IU1SCQ | -8 / - | 2 | ✓ Closing fragment |
| 10-06 04:49 | 40m | - / -19 | R7DX | +3 / - | 3 | Partial capture |
| 10-06 04:35 | 40m | - / - | DL3MIB | -9 / - | 4 | Partial capture |
| 09-04 01:35 | 40m | -14 / - | SP5LST | - / - | 2 | Partial capture |
| 07-13 02:17 | 40m | - / -14 | CR7BRV | -11 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 021715 -12 692 KB4FSU CR7BRV -14 (x2) 023615 -8 652 KB4FSU VA2EHQ RR73 013530 -12 2288 SP5LST KB4FSU EL98 (x2) 015015 -12 2689 KP4PW KB4FSU EL98 043545 -7 1660 KB4FSU DL3MIB JN57 (x4) 044900 +5 1202 KB4FSU R7DX -19 (x3) 050645 -11 1998 KB4FSU IU1SCQ -18 (x2)
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