UB3FAJ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UB3FAJ, decoded by SO8OO in southeastern Poland. 18 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-26 and 2026-08-27.
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 18 FT8 messages attributed to UB3FAJ as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (89%), followed by 20 m (11%). In this small sample, the estimated median decoder S/N was -16 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-27 09:15 UTC
Observed FT8 message patterns
- Attributed sample
- 18 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -16 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 9, moderate (-15 to -9 dB) 8, strong (≥ -8 dB) 1.
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 UB3FAJ 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 UB3FAJ
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
- LO06 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,465 km (approx.)
- Last such locator decoded
- 2026-08-27 09:14 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 | UB3FAJ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-27 09:14 | 20m | -17 / - | RN1TV | - / - | 2 | ✓ Closing fragment |
| 08-27 05:47 | 40m | - / +8 | EU6KA | -19 / - | 2 | Partial capture |
| 08-27 05:41 | 40m | - / -7 | UA3RAU | -2 / - | 3 | ✓ Closing fragment |
| 08-27 05:33 | 40m | - / -15 | UI6O | -14 / - | 2 | Partial capture |
| 08-27 05:30 | 40m | - / -13 | RA6FC | -14 / - | 4 | ✓ Closing fragment |
| 08-27 03:14 | 40m | -9 / -9 | RZ6L | +10 / +6 | 5 | ✓ Full exchange observed |
| 08-27 02:56 | 40m | - / -6 | DJ0MAB | -14 / - | 4 | ✓ Closing fragment |
| 08-27 02:53 | 40m | - / -18 | RK6OV | -7 / - | 4 | ✓ Closing fragment |
| 08-27 02:48 | 40m | - / - | RL3QGD | -6 / - | 8 | ✓ Closing fragment |
| 08-26 18:47 | 40m | - / - | DJ0MAB | -4 / - | 2 | Partial capture |
| 08-26 18:45 | 40m | -23 / -19 | I1RJP | -3 / - | 6 | ✓ Closing observed |
| 08-26 18:42 | 40m | - / - | DJ0MAB | -2 / - | 2 | Partial capture |
| 08-26 18:42 | 40m | - / - | RC6OX | -6 / - | 2 | Partial capture |
| 08-26 18:41 | 40m | - / - | I1RJP | 0 / - | 2 | Partial capture |
| 08-26 18:41 | 40m | - / -8 | RZ6CO | -6 / - | 5 | ✓ Closing fragment |
| 08-26 18:13 | 40m | - / -15 | UA4FEN | +2 / - | 2 | Partial capture |
| 08-26 18:02 | 40m | -11 / -5 | EU6UE | -2 / -5 | 5 | ✓ Full exchange observed |
| 08-26 17:36 | 40m | -10 / - | UA3ON | -3 / +4 | 4 | ✓ Closing observed |
| 08-26 17:06 | 40m | -20 / - | R9SAP | - / -7 | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 091430 -21 676 RN1TV UB3FAJ LO06 (x2)
UTC dB Audio Message 031700 -9 2490 RZ6L UB3FAJ +06 031715 +15 2488 UB3FAJ RZ6L R-09 (x2) 032430 -13 2565 ER1CW UB3FAJ LO06 053015 -13 982 UB3FAJ RA6FC LN13 (x4) 053330 -15 938 UB3FAJ UI6O -15 (x2) 054115 -4 996 UB3FAJ UA3RAU -07 (x3) 054730 -21 1889 UB3FAJ EU6KA +08 (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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