UB3BCT — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UB3BCT, decoded by SO8OO in southeastern Poland. 348 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 17 UTC dates in the available aggregate history. Observed between 2026-07-19 and 2026-08-22.
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 348 FT8 messages attributed to UB3BCT as the transmitting token by decoded message structure across 17 UTC dates in the available aggregate history. The largest monitored-band total was 10 m (50%), followed by 20 m (50%). The busiest six-hour window was 14:00-20:00 UTC, containing 47% of decodes. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -14.3 dB.
Overview
Bands
Last attributed message: 2026-08-22 15:54 UTC
Observed FT8 message patterns
- Attributed sample
- 348 messages
- Active dates
- 17 UTC dates
- Estimated median S/N
- -14.3 dB
- Estimated 10th-90th percentile
- -21 to -4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 152, moderate (-15 to -9 dB) 122, strong (≥ -8 dB) 74.
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 UB3BCT 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 UB3BCT
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
- KO85 · 206 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,193 km (approx.)
- Last such locator decoded
- 2026-08-22 15:54 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 | UB3BCT S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 09:21 | 10m | - / 0 | S56P | -6 / - | 2 | Partial capture |
| 08-22 16:16 | 20m | - / -16 | BG7BMG | -15 / - | 3 | Partial capture |
| 08-22 16:08 | 20m | - / -1 | GJ0KYZ | +3 / - | 2 | ✓ Closing fragment |
| 08-22 15:56 | 20m | - / -14 | 7K1CPT | -10 / - | 2 | ✓ Closing fragment |
| 08-22 15:48 | 20m | -14 / +2 | DK5OPA | +5 / +5 | 4 | ✓ Full exchange observed |
| 08-22 15:35 | 20m | - / -7 | I3QDK | -10 / - | 4 | Partial capture |
| 08-22 15:34 | 20m | - / - | RZ4FWA | -14 / - | 3 | Partial capture |
| 08-22 15:33 | 20m | - / -7 | SP3JHZ | -1 / - | 3 | ✓ Closing fragment |
| 08-22 07:37 | 20m | - / - | F1PPH | -17 / - | 9 | Partial capture |
| 08-22 07:37 | 20m | - / -13 | RZ7KR | -1 / - | 5 | Partial capture |
| 08-22 07:31 | 20m | -5 / - | R4AAR | - / -6 | 2 | Partial capture |
| 08-22 07:25 | 20m | -4 / - | DL1R | +11 / -15 | 13 | Partial capture |
| 08-22 07:24 | 20m | -2 / - | RV9CD | - / +4 | 2 | ✓ Closing fragment |
| 08-22 07:19 | 20m | - / +2 | RK4FF | +13 / - | 2 | ✓ Closing fragment |
| 08-22 07:17 | 20m | - / - | DM2DXA | +9 / - | 5 | ✓ Closing fragment |
| 08-22 07:15 | 20m | -4 / -8 | RZ6L | -10 / -8 | 5 | ✓ Full exchange observed |
| 08-22 07:15 | 20m | 0 / -18 | M7JVT | -11 / - | 2 | Partial capture |
| 08-20 18:45 | 10m | - / -13 | CX2AQ | -21 / - | 2 | ✓ Closing fragment |
| 08-20 18:43 | 10m | - / -13 | DF5KX | -13 / - | 3 | Partial capture |
| 08-20 15:50 | 10m | - / - | DL6ZAJ | -14 / - | 4 | Partial capture |
| 08-20 15:48 | 10m | - / - | DF6QN | -2 / - | 2 | Partial capture |
| 08-20 15:45 | 10m | - / -15 | F1PBZ | -12 / - | 2 | Partial capture |
| 08-20 15:37 | 10m | - / - | DN9AD | -22 / - | 3 | Partial capture |
| 08-20 15:33 | 10m | -16 / - | ZS6KBS | - / -22 | 2 | Partial capture |
| 08-20 15:29 | 10m | -16 / - | SP9UPH | - / -3 | 2 | ✓ Closing fragment |
| 08-20 14:38 | 10m | - / -7 | IK3XJP | -5 / - | 2 | ✓ Closing fragment |
| 08-17 20:20 | 10m | -8 / - | DL4RAQ | - / -15 | 3 | Partial capture |
| 08-17 20:15 | 10m | -6 / - | PU2UTY | - / -20 | 2 | Partial capture |
| 08-17 20:09 | 10m | -1 / - | YU2SA | - / -6 | 2 | Partial capture |
| 08-17 19:44 | 10m | -21 / - | PY2KQ | - / - | 2 | Partial capture |
| 08-17 19:42 | 10m | -18 / - | PP5HR | - / -22 | 3 | Partial capture |
| 08-17 19:29 | 10m | -6 / - | PY5TD | - / -13 | 5 | Partial capture |
| 08-17 18:41 | 10m | - / -13 | OD5VB | -16 / - | 3 | ✓ Closing fragment |
| 08-17 17:56 | 10m | - / - | SV1EKI | -19 / - | 3 | Partial capture |
| 08-17 17:45 | 10m | - / - | SV1EKI | -18 / - | 4 | Partial capture |
| 08-17 17:10 | 10m | -15 / - | 7X3WPL | - / -21 | 5 | Partial capture |
| 08-17 17:03 | 10m | -19 / -6 | YT5DL | -11 / - | 4 | ✓ Closing observed |
| 08-17 16:56 | 10m | -15 / - | IQ4JO | - / -20 | 2 | ✓ Closing fragment |
| 08-12 15:24 | 10m | - / - | RR73; | +12 / - | 2 | Partial capture |
| 08-12 15:22 | 10m | - / -23 | GW8DX | +12 / - | 5 | ✓ Closing fragment |
| 08-11 19:00 | 10m | -16 / - | OE6GBG | - / -13 | 2 | ✓ Closing fragment |
| 08-11 18:55 | 10m | -14 / - | IU0VOG | -8 / -17 | 6 | ✓ Full exchange observed |
| 08-11 18:46 | 10m | -19 / -9 | EA8UP | -6 / - | 3 | ✓ Closing observed |
| 08-11 18:31 | 10m | -15 / - | UA9C | - / - | 3 | Partial capture |
| 08-11 18:21 | 10m | -16 / - | UA9C | - / -18 | 5 | Partial capture |
| 08-11 17:54 | 10m | -24 / - | JY5JA | - / - | 2 | Partial capture |
| 08-11 17:51 | 10m | - / -13 | RC6OX | -6 / - | 3 | ✓ Closing fragment |
| 08-11 17:49 | 10m | -20 / - | SP6FME | - / -18 | 4 | ✓ Closing fragment |
| 08-11 17:31 | 10m | - / - | RA3DAD | -12 / - | 4 | Partial capture |
| 08-11 17:17 | 10m | - / -6 | F1PBZ | 0 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 155300 -9 1045 UB3BCT DL6ZAJ JO40 (x2) 155545 -24 1663 HA5LW UB3BCT KO85 180645 -15 2401 UB3BCT OZ2UH RR73 180845 -17 1702 UB3BCT DL1IG -12 184330 -14 910 UB3BCT DF5KX -13 (x3) 184545 -22 1972 UB3BCT CX2AQ -13 (x2) 091115 -16 2368 UB3BCT S56P JN76 (x3) 175315 -18 2110 UB3BCT CX6TU -09 092430 -13 2438 UB3BCT <...> -09
UTC dB Audio Message 154815 -19 2271 CQ UB3BCT KO85 154830 +6 558 UB3BCT DK5OPA JO30 154845 -14 2272 DK5OPA UB3BCT +05 154900 +5 558 UB3BCT DK5OPA R+02 (x2) 155130 +3 958 UB3BCT F5NNN IN94 155415 -6 2292 R9HW/M UB3BCT KO85 155600 -10 2726 UB3BCT 7K1CPT -14 (x2) 160300 -13 1027 UB3BCT G6MTI IO81 160845 +1 661 UB3BCT GJ0KYZ -01 (x2) 161600 -15 2272 UB3BCT BG7BMG -16 (x3)
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.
FT8DB and SO8OO WebSDR are a hobby project maintained solo. ☕ Buy me a coffee