DO2SEB — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO2SEB, decoded by SO8OO in southeastern Poland. 153 FT8 messages attributed to this token as transmitter, on 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-07-24.
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 153 FT8 messages attributed to DO2SEB as the transmitting token by decoded message structure across 3 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Most decodes (98%) fell within the six-hour window 10:00-16:00 UTC. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -11 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 153 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -11 dB
- Estimated 10th-90th percentile
- -16 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 19, moderate (-15 to -9 dB) 88, strong (≥ -8 dB) 46.
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.
Frequent counterpart tokens observed at SO8OO
Tokens most often paired with DO2SEB 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 DO2SEB
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
- JO31 · 102 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,054 km (approx.)
- Last such locator decoded
- 2026-07-24 14:18 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 | DO2SEB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 07-24 14:07 | 10m | -4 / - | PD9FLX | - / - | 18 | Partial capture |
| 07-24 13:50 | 10m | -7 / - | DL3RSK | - / - | 5 | Partial capture |
| 07-24 13:30 | 10m | -4 / - | YU1BV | - / - | 2 | ✓ Closing fragment |
| 07-24 13:18 | 10m | -10 / - | EI2KVB | - / -7 | 12 | ✓ Closing fragment |
| 07-24 13:14 | 10m | -6 / - | OK2XCG | - / +2 | 2 | Partial capture |
| 07-24 13:10 | 10m | -4 / - | YO3FRI | - / -4 | 3 | ✓ Closing fragment |
| 07-24 13:03 | 10m | -7 / - | HA0AA | - / +9 | 7 | ✓ Closing fragment |
| 07-24 13:01 | 10m | -9 / - | PY2DS | - / - | 3 | Partial capture |
| 07-24 10:38 | 10m | -14 / - | SP9RA | - / +8 | 3 | ✓ Closing fragment |
| 07-24 10:16 | 10m | -14 / - | R3LC | - / - | 5 | Partial capture |
| 07-24 10:07 | 10m | -13 / - | R3LC | - / - | 9 | Partial capture |
| 07-24 10:06 | 10m | -15 / - | YO2LFP | - / - | 3 | ✓ Closing fragment |
| 07-24 09:52 | 10m | -14 / - | YO4FPF | - / - | 2 | ✓ Closing fragment |
| 07-23 12:47 | 10m | - / - | F4BJN | -13 / - | 3 | Partial capture |
| 07-23 12:45 | 10m | -8 / - | <...> | - / -8 | 2 | Partial capture |
| 07-23 10:23 | 10m | -12 / - | RW6AU | - / - | 3 | Partial capture |
| 07-23 10:21 | 10m | -11 / - | EA8AT | - / -18 | 3 | Partial capture |
| 07-23 10:18 | 10m | -7 / - | EA3ACQ | - / - | 2 | ✓ Closing fragment |
| 07-23 10:17 | 10m | -10 / - | DN9CHV | - / -1 | 3 | ✓ Closing fragment |
| 07-23 10:16 | 10m | -10 / - | LZ1BK | - / - | 2 | Partial capture |
| 07-23 10:12 | 10m | -12 / - | EA3ISZ | - / +10 | 5 | ✓ Closing fragment |
| 07-23 10:11 | 10m | -11 / - | OH3OJ | - / -1 | 2 | Partial capture |
| 07-23 10:09 | 10m | -12 / - | EA3NG | - / - | 3 | ✓ Closing fragment |
| 07-23 10:07 | 10m | -16 / - | IK1MJK | - / +2 | 2 | ✓ Closing fragment |
| 07-23 09:07 | 10m | - / +2 | LZ3CB | +2 / - | 3 | ✓ Closing fragment |
| 07-15 15:01 | 10m | -14 / - | IS0AAS | - / -4 | 2 | ✓ Closing fragment |
| 07-15 14:55 | 10m | -16 / - | UX7QV | - / -1 | 2 | ✓ Closing fragment |
| 07-15 14:48 | 10m | -17 / - | OM3DX | - / +6 | 2 | ✓ Closing fragment |
| 07-15 11:37 | 10m | -14 / - | 9A2VX | - / -16 | 6 | Partial capture |
| 07-15 11:31 | 10m | -15 / - | 9A2VX | - / -16 | 5 | Partial capture |
| 07-15 11:26 | 10m | -14 / - | 9A2VX | - / -16 | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 141045 -1 2407 PD9FLX DO2SEB JO31 (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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