OM0ACA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OM0ACA, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 80m, 40m, across 2 UTC dates in the available aggregate history. Observed between 2026-07-09 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 18 FT8 messages attributed to OM0ACA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (83%), followed by 40 m (17%). In this small sample, the estimated median decoder S/N was -9 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-11 17:28 UTC
Observed FT8 message patterns
- Attributed sample
- 18 messages
- Active dates
- 2 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) 2, moderate (-15 to -9 dB) 7, 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 OM0ACA in decoded directed-looking exchanges:
Most frequent locator attributed to OM0ACA
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
- KN09 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 75 km (approx.)
- Last such locator decoded
- 2026-08-11 17:27 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 | OM0ACA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-11 17:33 | 10m | - / -4 | 9A2KS | -14 / - | 2 | Partial capture |
| 08-11 17:28 | 40m | -16 / -6 | LY3BES | -20 / -16 | 4 | Partial capture |
| 07-24 11:28 | 20m | - / -12 | IQ4JO | -2 / - | 3 | ✓ Closing fragment |
| 07-09 19:09 | 80m | -7 / - | DL8SXB | - / -16 | 2 | ✓ Closing fragment |
| 07-09 19:07 | 80m | - / - | UA4FKT | +5 / - | 3 | Partial capture |
| 07-09 18:27 | 80m | -9 / -19 | YO9CB | -5 / -3 | 5 | ✓ Full exchange observed |
| 07-09 18:25 | 80m | -2 / -11 | <...> | 0 / -4 | 3 | Partial capture |
| 07-09 18:24 | 80m | -12 / - | OH/DL4SVA | - / +1 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 173330 -14 1470 OM0ACA 9A2KS JN65 (x2)
UTC dB Audio Message 172745 -17 1899 CQ OM0ACA KN09 a1 172815 -14 1899 LY3BES OM0ACA R-16 172830 -20 1899 OM0ACA LY3BES -06 172845 -19 1899 LY3BES OM0ACA R-08 172900 -19 1899 OM0ACA LY3BES -06
UTC dB Audio Message 182800 -6 2389 OM0ACA YO9CB -19 182815 -9 1865 YO9CB OM0ACA R-03 182830 -4 2388 OM0ACA YO9CB RR73 182845 -4 1865 YO9CB OM0ACA 73 182945 +1 1865 YO9GWW OM0ACA KN09 190730 -13 1866 CQ OM0ACA KN09 190745 +5 1865 OM0ACA UA4FKT LO23 190800 -10 1866 CQ OM0ACA KN09 190815 +7 1865 OM0ACA UA4FKT LO23 (x2) 190900 -8 1866 DL8SXB OM0ACA -16 (x2) 172600 +3 1865 R2UC OM0ACA KN09 172630 +7 1865 CQ OM0ACA KN09 (x2)
UTC dB Audio Message 112815 -2 2588 OM0ACA IQ4JO JN63 (x3)
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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