KF4YUS — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving KF4YUS, decoded by SO8OO in southeastern Poland. 2 FT8 messages attributed to this token as transmitter, on 20m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-26.
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 2 FT8 messages attributed to KF4YUS as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The available sample contains attributed decodes on 20 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
- 2 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 KF4YUS in decoded directed-looking exchanges:
Most frequent locator attributed to KF4YUS
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
- FM06 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,672 km (approx.)
- Last such locator decoded
- 2026-08-26 04:15 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 | KF4YUS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-30 03:05 | 40m | - / -11 | F5PBG | -7 / - | 3 | ✓ Closing fragment |
| 10-08 01:45 | 40m | - / -15 | EA3HMM | +7 / - | 6 | Partial capture |
| 09-15 23:31 | 40m | - / -18 | SV9QWC | -8 / - | 3 | ✓ Closing fragment |
| 09-15 23:15 | 40m | - / - | M0PEL | -4 / - | 12 | Partial capture |
| 08-26 04:15 | 20m | -20 / - | UA3ZAB | - / - | 2 | Partial capture |
| 08-26 04:13 | 20m | - / - | EA4ITG | -14 / - | 2 | Partial capture |
| 08-26 04:10 | 20m | - / -23 | R3KCW | +8 / - | 3 | Partial capture |
| 08-24 05:08 | 20m | - / -13 | IT9CCB | +4 / - | 3 | ✓ Closing fragment |
| 08-24 04:45 | 20m | - / -14 | UR3LM | -19 / - | 3 | ✓ Closing fragment |
| 08-24 04:44 | 20m | - / -13 | A93MO | -14 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 232015 +1 610 KF4YUS M0PEL JO01 (x2) 233100 -11 1980 KF4YUS SV9QWC R-18 (x3) 014445 +4 2590 KF4YUS MI7XHT R-11 014515 +8 358 KF4YUS EA3HMM JN00 (x6) 030530 -7 1547 KF4YUS F5PBG IN78 (x3)
UTC dB Audio Message 044615 -23 1526 KF4YUS UR3LM R-14 (x2) 045630 -22 1305 KF4YUS ZL1BQD RR73 050830 +1 1528 KF4YUS IT9CCB JM77 (x3) 053045 -18 1400 KF4YUS E77FN JN93 040130 -11 1458 KF4YUS R3KCW KO90 (x4) 041300 -17 2248 KF4YUS EA4ITG IN80 (x2) 041515 -24 1525 UA3ZAB KF4YUS FM06 (x2)
CW
No CW receptions recorded for this callsign in the last 30 days.
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