SP3ML — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SP3ML, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 80m, 60m, across 2 UTC dates in the available aggregate history. Observed between 2026-09-15 and 2026-09-21.
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 14 FT8 messages attributed to SP3ML 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 (86%), followed by 60 m (14%). In this small sample, the estimated median decoder S/N was -24 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-21 15:05 UTC
Observed FT8 message patterns
- Attributed sample
- 14 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -24 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, 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 SP3ML in decoded directed-looking exchanges:
Most frequent locator attributed to SP3ML
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
- JO82 · 12 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 439 km (approx.)
- Last such locator decoded
- 2026-09-21 15:05 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 | SP3ML S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 14:19 | 40m | - / +5 | ON3MOH | -15 / - | 4 | Partial capture |
| 09-21 14:14 | 40m | - / -18 | DL6UM | 0 / - | 4 | ✓ Closing fragment |
| 09-20 04:34 | 40m | - / - | PE1NPS | -1 / - | 4 | Partial capture |
| 09-19 19:22 | 60m | - / -25 | ON7GB | +5 / - | 7 | ✓ Closing fragment |
| 09-18 19:37 | 60m | - / -19 | DD6ZV | 0 / - | 11 | ✓ Closing fragment |
| 09-18 19:37 | 60m | - / -18 | OZ1GXW | +2 / - | 3 | Partial capture |
| 09-18 17:48 | 60m | - / -16 | SQ1ES | +4 / - | 3 | ✓ Closing fragment |
| 09-17 14:52 | 40m | - / -14 | LY1SR | +2 / - | 2 | Partial capture |
| 09-17 14:46 | 40m | - / -18 | US2UM | +4 / - | 3 | ✓ Closing fragment |
| 09-17 14:29 | 40m | - / +6 | SQ5PFI | +3 / - | 3 | ✓ Closing fragment |
| 09-17 14:26 | 40m | - / -9 | LY1DY | -1 / - | 3 | ✓ Closing fragment |
| 09-15 17:13 | 80m | -18 / -19 | SP3IOE | +5 / -11 | 7 | ✓ Full exchange observed |
| 09-15 16:41 | 80m | -22 / - | DO9FR | - / - | 4 | Partial capture |
| 09-15 11:46 | 40m | - / - | SP9XG | -9 / - | 3 | Partial capture |
| 09-15 11:45 | 40m | - / - | HG8LXL | -10 / - | 4 | Partial capture |
| 09-14 15:27 | 40m | - / -12 | LY5LT | -8 / - | 2 | ✓ Closing fragment |
| 09-11 06:44 | 40m | - / -16 | US2YW | -2 / - | 4 | ✓ Closing fragment |
| 08-24 15:08 | 20m | - / - | R7OV | -8 / - | 4 | Partial capture |
| 08-20 08:28 | 20m | - / -13 | F1ODM | -4 / - | 2 | ✓ Closing fragment |
| 08-11 08:18 | 20m | - / - | RV6F | -16 / - | 4 | Partial capture |
| 08-07 11:51 | 20m | - / -14 | YO6RK | -6 / - | 2 | ✓ Closing fragment |
| 08-05 11:43 | 20m | - / - | RA6OY | +2 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 194015 +0 1888 SP3ML DD6ZV JO62 (x5) 192245 +7 657 SP3ML ON7GB JO21 (x7) 192745 +3 1368 SP3ML DL5DQZ JO61 150430 -24 1534 CQ SP3ML JO82 (x2)
UTC dB Audio Message 144715 +2 743 SP3ML US2UM 73 145245 -1 1231 SP3ML LY1SR -14 (x2) 043400 -5 486 SP3ML PE1NPS JO22 (x4) 141415 -2 1048 SP3ML DL6UM JO60 (x4) 141915 -13 2310 SP3ML ON3MOH +05 (x4)
UTC dB Audio Message 161515 -24 1400 CQ SP3ML JO82 a1 164145 -24 1878 DO9FR SP3ML JO82 (x4) 164715 -24 1878 CQ SP3ML JO82 a1 (x3) 171315 -7 2501 SP3ML SP3IOE JO72 171330 -18 964 SP3IOE SP3ML -11 (x2) 171445 +10 2501 SP3ML SP3IOE R-19 (x4)
UTC dB Audio Message 104945 -5 1343 SP3ML RK4FF -05 115100 -6 2089 SP3ML YO6RK -14 (x2) 081800 -12 1439 SP3ML RV6F LN14 (x3) 081900 -18 1393 SP3ML ON1DGN -12 081930 -17 1439 SP3ML RV6F LN14 081215 -5 1321 SP3ML RA4Y LO35 082815 -2 2149 SP3ML F1ODM -13 (x2) 150815 -8 2282 SP3ML R7OV KN87 (x4)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee