DO5TCK — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO5TCK, decoded by SO8OO in southeastern Poland. 61 FT8 messages attributed to this token as transmitter, on 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-22 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 61 FT8 messages attributed to DO5TCK as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (100%). Several six-hour UTC windows tied for the largest share (67%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -8 dB.
Overview
Observed FT8 message patterns
- Attributed sample
- 61 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -8 dB
- Estimated 10th-90th percentile
- -19 to +2 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 13, moderate (-15 to -9 dB) 15, strong (≥ -8 dB) 33.
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 DO5TCK 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 DO5TCK
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 · 31 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,054 km (approx.)
- Last such locator decoded
- 2026-08-26 20:51 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 | DO5TCK S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-20 16:59 | 10m | -12 / - | UX3HX | - / -11 | 2 | ✓ Closing fragment |
| 08-19 14:51 | 10m | -16 / - | EB5R | - / -2 | 2 | ✓ Closing fragment |
| 07-31 18:14 | 10m | - / - | F6FHZ | -20 / - | 2 | Partial capture |
| 07-31 18:05 | 10m | - / -3 | EA3DYI | -20 / - | 2 | ✓ Closing fragment |
| 07-29 18:38 | 10m | +3 / - | Z61DX | -8 / +5 | 4 | ✓ Full exchange observed |
| 07-29 15:36 | 10m | -19 / - | 3B8GL | - / -9 | 6 | Partial capture |
| 07-29 15:01 | 10m | -10 / - | CA6SNT | - / -11 | 3 | ✓ Closing fragment |
| 07-06 09:10 | 10m | -10 / - | 9H4JX | - / -11 | 2 | ✓ Closing fragment |
| 07-06 09:08 | 10m | -11 / - | <...> | - / -11 | 2 | Partial capture |
| 07-05 08:21 | 10m | -2 / - | UR6LUB | - / -12 | 3 | Partial capture |
| 06-28 16:03 | 10m | 0 / - | CN2DX | - / - | 8 | Partial capture |
| 06-28 15:53 | 10m | - / - | DN9OPA | -2 / - | 6 | Partial capture |
| 06-28 15:51 | 10m | +5 / 0 | DJ1TU | -20 / -2 | 5 | ✓ Full exchange observed |
| 06-28 15:49 | 10m | -2 / - | DN9WAV | - / -8 | 2 | ✓ Closing fragment |
| 06-28 15:48 | 10m | - / - | IK4LZH | -6 / - | 4 | Partial capture |
| 06-28 15:47 | 10m | - / - | S55A | -3 / - | 2 | Partial capture |
| 06-27 05:18 | 10m | - / - | UB3DLM | -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 145015 -11 2219 CQ DO5TCK JO31 (x3) 145145 -12 2219 EB5R DO5TCK -02 (x2) 145245 -7 2219 CQ DO5TCK JO31 a1 (x4) 150600 -16 773 DO5TCK SV2CLJ KN10 165645 -16 1078 CQ DO5TCK JO31 a1 165715 -13 1078 SO5WD DO5TCK -02 165915 -12 1078 UX3HX DO5TCK -11 (x2) 205145 -9 647 9Z4S DO5TCK JO31
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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