SP9ACB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP9ACB, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-08-28.
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 16 FT8 messages attributed to SP9ACB as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -2 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 16 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -2 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 16.
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 SP9ACB in decoded directed-looking exchanges:
Most frequent locator attributed to SP9ACB
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
- JO90 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 208 km (approx.)
- Last such locator decoded
- 2026-08-28 15:59 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 | SP9ACB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-28 16:02 | 40m | -3 / - | 9A4ZM | -10 / -6 | 6 | Partial capture |
| 08-28 16:01 | 40m | -4 / - | PE1NPS | - / -10 | 2 | ✓ Closing fragment |
| 08-28 16:00 | 40m | -2 / - | OE5LGJ | - / -15 | 2 | ✓ Closing fragment |
| 08-28 15:59 | 40m | +1 / - | S56LKP | - / - | 2 | Partial capture |
| 08-28 15:56 | 40m | -2 / - | OE5LGJ | - / - | 3 | Partial capture |
| 08-28 15:54 | 40m | -2 / - | S56LKP | - / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 155715 -1 1539 OE5LGJ SP9ACB JO90 (x2) 155915 +1 1540 S56LKP SP9ACB JO90 (x2) 160015 -1 1540 OE5LGJ SP9ACB R-15 (x2) 160145 -6 1540 PE1NPS SP9ACB -10 (x2) 160230 -12 1535 SP9ACB 9A4ZM JN86 (x2) 160315 -1 1540 F5RRS SP9ACB RR73 160345 -3 1540 9A4ZM SP9ACB -06 (x4)
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