UB3DWZ — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving UB3DWZ, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 8 UTC dates in the available aggregate history. Observed between 2026-07-15 and 2026-09-06.
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 16 FT8 messages attributed to UB3DWZ as the transmitting token by decoded message structure across 8 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (94%), followed by 40 m (6%). In this small sample, the estimated median decoder S/N was -15 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-06 04:47 UTC
Observed FT8 message patterns
- Attributed sample
- 16 messages
- Active dates
- 8 UTC dates
- Estimated median S/N
- -15 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 7, 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 UB3DWZ 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 UB3DWZ
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 · 9 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,193 km (approx.)
- Last such locator decoded
- 2026-07-31 19:34 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 | UB3DWZ S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-06 04:47 | 40m | - / -3 | DK7ZT | -6 / - | 3 | ✓ Closing fragment |
| 09-06 04:43 | 40m | - / -8 | RD6OZ | -4 / - | 4 | ✓ Closing fragment |
| 09-06 04:42 | 40m | - / -5 | UA3LRN | -14 / - | 3 | ✓ Closing fragment |
| 09-05 16:18 | 40m | - / -4 | RX9ABI | -12 / - | 2 | Partial capture |
| 09-05 16:17 | 40m | - / -17 | R3WDW | +2 / - | 3 | ✓ Closing fragment |
| 09-05 16:15 | 40m | - / -18 | UN7PPV | -18 / - | 3 | ✓ Closing fragment |
| 09-05 16:15 | 40m | - / -12 | RA4HG | +2 / - | 2 | Partial capture |
| 09-05 16:14 | 40m | - / -15 | SP6FME | -2 / - | 2 | Partial capture |
| 08-23 10:06 | 20m | - / - | RL3QGD | -6 / - | 2 | Partial capture |
| 08-22 19:55 | 20m | - / -15 | 9A2RD | +17 / - | 3 | Partial capture |
| 08-22 16:26 | 20m | - / - | F5JAE | -6 / - | 4 | Partial capture |
| 08-22 16:25 | 20m | -7 / - | UA2FFD | - / -10 | 2 | ✓ Closing fragment |
| 08-16 09:29 | 20m | - / +9 | DM2DXA | -19 / - | 2 | Partial capture |
| 08-16 09:26 | 20m | -19 / -12 | R3KCW | -11 / - | 5 | ✓ Closing observed |
| 08-08 20:30 | 40m | - / -14 | I1RJP | +1 / - | 3 | ✓ Closing fragment |
| 08-08 20:29 | 40m | - / -14 | 5P1KZX | -8 / - | 2 | ✓ Closing fragment |
| 08-08 20:22 | 40m | - / -14 | DR800WE | -5 / - | 2 | Partial capture |
| 08-06 13:23 | 20m | - / -15 | RT6DU | -2 / - | 2 | Partial capture |
| 08-06 13:23 | 20m | - / -18 | F5HNQ | +3 / - | 2 | Partial capture |
| 08-06 13:20 | 20m | - / - | R6TA | -8 / - | 3 | Partial capture |
| 08-06 09:58 | 20m | - / -18 | F6HUK | -16 / - | 2 | ✓ Closing fragment |
| 08-05 13:04 | 20m | - / -13 | PC2K | -17 / - | 2 | ✓ Closing fragment |
| 08-05 08:28 | 20m | - / - | G4DBW | -2 / - | 2 | Partial capture |
| 08-05 08:26 | 20m | - / - | IK4LZH | +6 / - | 4 | Partial capture |
| 08-05 08:22 | 20m | - / - | IK4LZH | +8 / - | 4 | Partial capture |
| 08-05 08:17 | 20m | - / -22 | IQ4JO | -10 / - | 2 | ✓ Closing fragment |
| 08-05 02:34 | 20m | - / -13 | UA9CK | -11 / - | 2 | ✓ Closing fragment |
| 08-03 08:27 | 20m | - / - | IU2THY | -4 / - | 2 | Partial capture |
| 08-01 12:25 | 20m | - / - | PD3LKN | -20 / - | 4 | Partial capture |
| 08-01 06:06 | 20m | - / - | RZ4FWA | -7 / - | 2 | ✓ Closing fragment |
| 07-31 21:29 | 20m | - / -13 | <...> | -7 / - | 4 | ✓ Closing fragment |
| 07-31 21:05 | 20m | - / -16 | F4HTA | +6 / - | 2 | ✓ Closing fragment |
| 07-31 20:18 | 20m | - / -12 | M7INZ | -20 / - | 4 | Partial capture |
| 07-31 19:56 | 20m | - / - | PD3LKN | +4 / - | 7 | Partial capture |
| 07-31 19:47 | 20m | - / -7 | F4FEP | +2 / - | 3 | Partial capture |
| 07-31 19:31 | 20m | -22 / -6 | G7IJI | -9 / - | 2 | ✓ Closing observed |
| 07-31 18:06 | 20m | - / +2 | R6DZR | -8 / - | 4 | ✓ Closing fragment |
| 07-31 17:21 | 20m | - / -11 | RY7G | -11 / - | 3 | ✓ Closing fragment |
| 07-30 11:53 | 20m | - / - | PD3LKN | -23 / - | 2 | Partial capture |
| 07-30 09:49 | 20m | - / - | PE9JAN | -6 / - | 2 | Partial capture |
| 07-29 20:28 | 20m | - / -16 | TA3TER | -21 / - | 3 | ✓ Closing fragment |
| 07-29 19:28 | 20m | - / -14 | LA2GCA | -16 / - | 4 | Partial capture |
| 07-29 14:34 | 20m | - / -12 | LZ2SPD | -19 / - | 3 | Partial capture |
| 07-29 14:06 | 20m | - / +2 | DL4EQ | -19 / - | 2 | ✓ Closing fragment |
| 07-29 13:57 | 20m | - / -14 | DD0AM | -7 / - | 2 | Partial capture |
| 07-29 12:09 | 20m | - / - | IK3JLT | -20 / - | 3 | Partial capture |
| 07-29 12:01 | 20m | - / - | PE9JAN | -21 / - | 2 | Partial capture |
| 07-28 09:59 | 20m | - / - | R3KCW | -14 / - | 2 | Partial capture |
| 07-28 09:11 | 20m | - / - | HG8LXL | +8 / - | 3 | Partial capture |
| 07-28 06:37 | 20m | - / +4 | UA6HGM | -18 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 161815 +4 624 UB3DWZ R3WDW 73 161845 -12 2607 UB3DWZ RX9ABI -04 (x2) 044245 -15 2369 UB3DWZ UA3LRN KO64 (x2) 044315 +2 827 UB3DWZ RD6OZ KN98 044345 -17 2370 UB3DWZ UA3LRN 73 044345 -3 827 UB3DWZ RD6OZ KN98 (x3) 044545 -13 1631 UB3DWZ UA4FEN RR73 044730 -16 1983 RU6CH UB3DWZ 73 044745 -6 1907 UB3DWZ DK7ZT -03 (x3)
UTC dB Audio Message 092900 -17 2019 UB3DWZ DM2DXA JO64 (x2) 093200 -24 1420 UB3DWZ RU3QR -14 162530 -10 1812 UA2FFD UB3DWZ R-10 (x2) 162615 -4 1812 UB3DWZ F5JAE JN14 (x4) 195515 +19 619 UB3DWZ 9A2RD JN65 (x3) 100400 -13 1490 UB3DWZ JY5IB RR73 100630 -3 2523 UB3DWZ RL3QGD KO91 (x2)
UTC dB Audio Message 195130 +11 2708 UB3DWZ RT6Z KN98
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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