SP4OSK — 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 SP4OSK, decoded by SO8OO in southeastern Poland. 19 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-25.
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 19 FT8 messages attributed to SP4OSK as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (63%), followed by 80 m (37%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-25 18:07 UTC
Observed FT8 message patterns
- Attributed sample
- 19 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -9 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 9, strong (≥ -8 dB) 9.
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 SP4OSK in decoded directed-looking exchanges:
Most frequent locator attributed to SP4OSK
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
- KO04 · 9 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 510 km (approx.)
- Last such locator decoded
- 2026-10-25 18:07 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 | SP4OSK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-25 18:06 | 160m | -17 / - | EA4HPY | - / - | 2 | Partial capture |
| 10-25 18:02 | 160m | -10 / -16 | SQ2PHC | -6 / +1 | 7 | ✓ Full exchange observed |
| 10-25 17:57 | 160m | -9 / -15 | DK9OR | -2 / -1 | 5 | Partial capture |
| 10-25 17:38 | 80m | 0 / - | 9A4ZM | +4 / -10 | 8 | Partial capture |
| 10-25 17:36 | 80m | -1 / -16 | EW6PG | -10 / - | 3 | ✓ Closing observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 175900 -11 1092 DK9OR SP4OSK R-01 175915 -3 1971 SP4OSK DK9OR -15 180130 -12 1092 CQ SP4OSK KO04 (x2) 180215 -7 1582 SP4OSK SQ2PHC JO94 180230 -10 1092 SQ2PHC SP4OSK +01 180245 -11 1582 SP4OSK SQ2PHC R-16 180300 -9 1092 SQ2PHC SP4OSK RR73 180315 -5 1582 SP4OSK SQ2PHC R-16 180330 -11 1092 SQ2PHC SP4OSK RR73 180345 -1 1582 SP4OSK SQ2PHC 73 180430 -11 1092 CQ SP4OSK KO04 (x2) 180630 -20 1092 EA4HPY SP4OSK KO04 (x2)
UTC dB Audio Message 173645 -1 1093 EW6PG SP4OSK KO04 173700 -7 1758 SP4OSK EW6PG -16 (x2) 173800 +4 1089 SP4OSK 9A4ZM JN86 (x2) 173845 +5 1093 9A4ZM SP4OSK -10 (x6)
CW
No CW receptions recorded for this callsign in the last 30 days.
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