SP8SN — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP8SN, decoded by SO8OO in southeastern Poland. 15 FT8 messages attributed to this token as transmitter, on 60m, 40m, 20m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-16 and 2026-10-02.
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 15 FT8 messages attributed to SP8SN as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 60 m (67%), followed by 40 m (27%) and 20 m (7%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-02 20:38 UTC
Observed FT8 message patterns
- Attributed sample
- 15 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 7.
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 SP8SN in decoded directed-looking exchanges:
Most frequent locator attributed to SP8SN
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
- KO11 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 193 km (approx.)
- Last such locator decoded
- 2026-10-02 20:34 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 | SP8SN S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-02 20:37 | 60m | -20 / - | VE1YX | - / -16 | 2 | ✓ Closing fragment |
| 10-02 20:36 | 60m | -20 / +5 | IZ0MIT | -10 / -6 | 5 | ✓ Full exchange observed |
| 10-02 20:35 | 60m | -22 / +4 | HF1Z | -3 / - | 5 | ✓ Full exchange observed |
| 10-02 20:34 | 60m | -18 / -4 | ER5DX | +4 / - | 3 | ✓ Closing observed |
| 09-06 15:47 | 60m | +1 / +4 | DD6ZV | -11 / - | 5 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 203400 -18 1638 ER5DX SP8SN KO11 203415 +1 2766 SP8SN ER5DX -04 (x2) 203515 -3 1532 SP8SN HF1Z JO73 203530 -24 1638 HF1Z SP8SN +13 203545 +0 1532 SP8SN HF1Z R+04 203600 -20 1638 HF1Z SP8SN RR73 203615 -12 2138 SP8SN IZ0MIT JN61 203615 -5 1532 SP8SN HF1Z 73 203630 -19 1638 IZ0MIT SP8SN -06 203645 -12 2138 SP8SN IZ0MIT R+05 203700 -20 1638 IZ0MIT SP8SN RR73 203715 -7 2138 SP8SN IZ0MIT 73 203730 -19 1639 VE1YX SP8SN -16 (x2)
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.
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