DO6UM — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO6UM, decoded by SO8OO in southeastern Poland. 10 FT8 messages attributed to this token as transmitter, on 10m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-20 and 2026-08-26.
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 10 FT8 messages attributed to DO6UM as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). In this small sample, the estimated median decoder S/N was -21 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 10 messages
- Active dates
- 2 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) 6, moderate (-15 to -9 dB) 2, strong (≥ -8 dB) 2.
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 DO6UM in decoded directed-looking exchanges:
Most frequent locator attributed to DO6UM
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
- JO33 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,091 km (approx.)
- Last such locator decoded
- 2026-08-26 19:31 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 | DO6UM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-26 19:30 | 10m | -14 / - | PY1SX | - / - | 2 | Partial capture |
| 08-26 19:28 | 10m | -8 / +4 | UX1AA | -10 / - | 4 | ✓ Full exchange observed |
| 08-20 14:18 | 10m | - / -19 | IK2SND | -8 / - | 7 | Partial capture |
| 08-20 14:11 | 10m | -22 / - | I8KRC | - / +2 | 2 | ✓ Closing fragment |
| 08-11 09:07 | 10m | - / -8 | SV1CQN | -2 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 141945 -7 638 DO6UM IK2SND -19 (x5) 145015 -22 1316 <...> DO6UM R+14 152245 -22 1650 HA2KF DO6UM 73 152315 -24 1918 HG1DRC DO6UM JO33 152645 -24 1395 DO6UM R3GO RR73 192830 -8 693 UX1AA DO6UM JO33 192845 -11 693 DO6UM UX1AA +04 192900 -8 693 UX1AA DO6UM R+22 192915 -8 693 DO6UM UX1AA RR73 193030 -14 819 PY1SX DO6UM JO33 (x2)
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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