OK1FBU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OK1FBU, decoded by SO8OO in southeastern Poland. 17 FT8 messages attributed to this token as transmitter, on 160m, 10m, across 3 UTC dates in the available aggregate history. Observed between 2026-06-10 and 2026-09-07.
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 17 FT8 messages attributed to OK1FBU 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 (76%), followed by 10 m (24%). In this small sample, the estimated median decoder S/N was -5 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-07 19:09 UTC
Observed FT8 message patterns
- Attributed sample
- 17 messages
- Active dates
- 3 UTC dates
- Estimated median S/N
- -5 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 1, moderate (-15 to -9 dB) 5, strong (≥ -8 dB) 11.
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 OK1FBU in decoded directed-looking exchanges:
Most frequent locator attributed to OK1FBU
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
- JN79 · 6 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 491 km (approx.)
- Last such locator decoded
- 2026-09-07 19:06 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 | OK1FBU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-07 19:07 | 160m | -3 / -3 | SQ8AA | +10 / -3 | 5 | ✓ Full exchange observed |
| 09-07 19:07 | 160m | -6 / - | UA3ZUX | +5 / -4 | 3 | Partial capture |
| 09-07 19:06 | 160m | -6 / - | YO2MTG | 0 / -3 | 4 | ✓ Closing observed |
| 09-07 19:03 | 160m | -7 / - | RL2F | - / -15 | 4 | ✓ Closing fragment |
| 09-07 19:00 | 160m | -8 / -13 | PA3FR | 0 / +4 | 4 | ✓ Full exchange observed |
| 08-12 18:40 | 10m | - / +6 | LA1HW | -21 / - | 3 | ✓ Closing fragment |
| 07-24 16:42 | 10m | -7 / - | SM5VSS | - / 0 | 3 | ✓ Closing fragment |
| 07-18 06:11 | 10m | - / -14 | RD7LC | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 190415 -7 1442 RL2F OK1FBU JN79 (x3) 190600 -12 1442 YO2MTG OK1FBU JN79 (x2) 190645 +0 1942 OK1FBU YO2MTG RR73 190700 -2 1442 YO2MTG OK1FBU 73 190715 +5 2262 OK1FBU UA3ZUX KO90 190745 +12 2445 OK1FBU SQ8AA KN19 190800 -4 1442 SQ8AA OK1FBU -03 190815 +13 2445 OK1FBU SQ8AA R-03 190830 -2 1442 SQ8AA OK1FBU RR73 190845 +6 2445 OK1FBU SQ8AA R-03 190900 -4 1442 UA3ZUX OK1FBU -04 (x2)
UTC dB Audio Message 060900 -14 1316 OK1FBU R6YG -16 061100 -5 2358 OK1FBU RD7LC -14 (x2) 061615 -24 1614 OK1FBU UK8OM -13 164200 -9 1463 SM5VSS OK1FBU JN79 (x3) 150930 -11 803 OK1FBU R50RKZ -06 194100 -11 2601 OK1FBU CE2SV RR73 184030 -23 1912 OK1FBU LA1HW +06 (x3)
UTC dB Audio Message 185430 -24 1624 OK1FBU GM3CQD -02
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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