EA4BU — 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 EA4BU, decoded by SO8OO in southeastern Poland. 169 FT8 messages attributed to this token as transmitter, on 20m, across 11 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-08-11.
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 169 FT8 messages attributed to EA4BU as the transmitting token by decoded message structure across 11 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). Several six-hour UTC windows tied for the largest share (72%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 169 messages
- Active dates
- 11 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -19 to -5 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 62, moderate (-15 to -9 dB) 68, strong (≥ -8 dB) 39.
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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with EA4BU in decoded directed-looking exchanges:
Most frequent locator attributed to EA4BU
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
- IN80 · 78 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,193 km (approx.)
- Last such locator decoded
- 2026-08-11 09:39 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 | EA4BU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-18 11:13 | 10m | - / - | DL3MIB | -2 / - | 6 | Partial capture |
| 08-11 09:38 | 20m | -17 / -9 | DK5OPA | -11 / -5 | 4 | ✓ Full exchange observed |
| 08-11 09:36 | 20m | -22 / - | CR5VP | - / -10 | 3 | ✓ Closing fragment |
| 08-10 11:20 | 20m | - / -9 | IK4LZH | +6 / - | 2 | ✓ Closing fragment |
| 08-10 11:04 | 20m | - / - | IK4LZH | +6 / - | 3 | Partial capture |
| 08-10 11:02 | 20m | - / +4 | IU2THY | -9 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 111315 +1 1105 EA4BU DL3MIB JN57 (x6)
UTC dB Audio Message 112045 +5 462 EA4BU IK4LZH R-09 (x2) 113130 -16 1221 CQ EA4BU IN80 (x5) 093600 -23 1751 CR5VP EA4BU IN80 (x3) 093830 -16 1746 DK5OPA EA4BU -05 093845 -12 565 EA4BU DK5OPA R-09 093900 -18 1745 DK5OPA EA4BU RR73 093915 -10 564 EA4BU DK5OPA 73 093930 -14 1744 CQ EA4BU IN80
Decoder S/N history by band
Count-weighted daily averages across messages attributed to this profiled token and successfully decoded at SO8OO, limited to the rolling 90-day UTC chart window.
CW
No CW receptions recorded for this callsign in the last 30 days.
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