ON3ML — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving ON3ML, decoded by SO8OO in southeastern Poland. 11 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-17 and 2026-09-07.
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 11 FT8 messages attributed to ON3ML as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (64%), followed by 80 m (18%) and 20 m (18%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-07 04:52 UTC
Observed FT8 message patterns
- Attributed sample
- 11 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -21 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 10, moderate (-15 to -9 dB) 1, strong (≥ -8 dB) 0.
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 ON3ML in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to ON3ML
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
- JO11 · 8 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,331 km (approx.)
- Last such locator decoded
- 2026-09-07 04:52 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 | ON3ML S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-07 04:44 | 40m | - / -3 | KB3Z | -11 / - | 2 | ✓ Closing fragment |
| 08-05 04:54 | 80m | -18 / - | K1ZM | - / -1 | 2 | Partial capture |
| 08-05 04:51 | 80m | - / -4 | DO8JB | -16 / - | 3 | ✓ Closing fragment |
| 07-24 04:54 | 40m | - / -13 | IZ3QCH | -15 / - | 2 | ✓ Closing fragment |
| 07-24 04:39 | 40m | - / - | IQ4JO | 0 / - | 2 | ✓ Closing fragment |
| 07-17 12:49 | 20m | - / -12 | IU5HIU | -7 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 043715 -23 1766 CQ ON3ML JO11 043815 -23 1766 F1PBZ ON3ML 73 043915 -24 1766 CQ ON3ML JO11 a1 043930 +0 2606 ON3ML IQ4JO JN63 (x2) 045400 -10 1523 ON3ML IZ3QCH R-13 (x2) 043545 -16 1903 CQ ON3ML JO11 (x2) 044400 -13 1903 ON3ML KB3Z R-03 (x2) 044915 -18 1902 CQ ON3ML JO11 (x2) 045530 -16 906 ON3ML LA1SNA JO49
UTC dB Audio Message 045145 -18 816 ON3ML DO8JB JO32 (x3) 045400 -18 1174 K1ZM ON3ML -01 (x2) 051045 -17 2387 ON3ML <...> +08
UTC dB Audio Message 124900 -6 606 ON3ML IU5HIU JN53 (x2) 125145 -21 1431 CQ ON3ML JO11 a1 055130 -24 1874 K9STL ON3ML JO11
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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