DK1BF — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DK1BF, decoded by SO8OO in southeastern Poland. 49 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 8 UTC dates in the available aggregate history. Observed between 2026-06-11 and 2026-08-12.
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 49 FT8 messages attributed to DK1BF 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 (88%), followed by 20 m (12%). Several six-hour UTC windows tied for the largest share (69%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (67%); the estimated median was -3 dB.
Overview
Bands
Last attributed message: 2026-08-12 17:57 UTC
Observed FT8 message patterns
- Attributed sample
- 49 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -3 dB
- Estimated 10th-90th percentile
- -16 to +10 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, moderate (-15 to -9 dB) 9, 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 DK1BF 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 DK1BF
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 · 32 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,091 km (approx.)
- Last such locator decoded
- 2026-08-12 17:57 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 | DK1BF S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 06-27 06:21 | 20m | -17 / - | UB4HVA | - / +5 | 2 | Partial capture |
| 06-27 06:19 | 20m | -17 / -13 | EC5M | -16 / -14 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 095645 -21 2023 YO9PH DK1BF 73 102400 -24 1748 R1BRY DK1BF JO33 145100 -8 842 DK1BF IU4QRO JN54 175745 -16 1151 F5NNN DK1BF JO33
UTC dB Audio Message 061900 -16 2228 EC5M DK1BF JO33 061915 -13 2228 DK1BF EC5M -13 061930 -18 2228 EC5M DK1BF R-14 061945 -18 2228 DK1BF EC5M RR73 062100 -19 1991 UB4HVA DK1BF JO33 (x2) 153245 -12 1192 UT1UW DK1BF 73 171715 -13 1180 BG0FQU DK1BF JO33
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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