SM4OTI — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving SM4OTI, decoded by SO8OO in southeastern Poland. 154 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 3 UTC dates in the available aggregate history. Observed between 2026-08-27 and 2026-09-01.
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 154 FT8 messages attributed to SM4OTI as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 160 m (59%), followed by 80 m (41%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (100%); the estimated median was +3 dB.
Overview
Bands
Last attributed message: 2026-09-01 20:13 UTC
Observed FT8 message patterns
- Attributed sample
- 154 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- +3 dB
- Estimated 10th-90th percentile
- -4 to +7 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 154.
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.
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 SM4OTI
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
- JP70 · 141 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,249 km (approx.)
- Last such locator decoded
- 2026-09-01 20:13 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 | SM4OTI S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-01 20:08 | 80m | -3 / - | P29YY | - / - | 3 | Partial capture |
| 09-01 19:58 | 80m | -4 / - | P29YY | - / - | 4 | Partial capture |
| 09-01 19:24 | 80m | - / - | PE1IDG | -12 / - | 2 | Partial capture |
| 09-01 19:01 | 80m | +1 / - | P29YY | - / -25 | 39 | Partial capture |
| 08-29 22:46 | 160m | +3 / - | RI1FJL | - / -15 | 7 | Partial capture |
| 08-29 21:58 | 160m | +4 / - | RI1FJL | - / -15 | 84 | Partial capture |
| 08-27 18:44 | 80m | +4 / - | RI1FJL | - / - | 8 | Partial capture |
| 08-27 18:34 | 80m | -1 / - | RI1FJL | - / - | 8 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 191945 -7 680 P29YY SM4OTI JP70 (x5) 192400 -10 681 SM4OTI PE1IDG JO32 (x2) 195845 -6 1514 P29YY SM4OTI JP70 (x8)
UTC dB Audio Message 224015 +4 285 RI1FJL SM4OTI JP70 (x15)
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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