DO9BAU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DO9BAU, decoded by SO8OO in southeastern Poland. 40,727 FT8 messages attributed to this token as transmitter, on 160m, 80m, 10m, across 101 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-09-21.
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 40,727 FT8 messages attributed to DO9BAU as the transmitting token by decoded message structure across 101 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (98%), followed by 10 m (2%) and 160 m (0%). Most decodes (56%) fell within the six-hour window 21:00-03:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (93%); the estimated median was +4 dB.
Overview
Bands
Last attributed message: 2026-09-21 02:01 UTC
Observed FT8 message patterns
- Attributed sample
- 40,727 messages
- Active dates
- 101 UTC dates
- Estimated median S/N
- +4 dB
- Estimated 10th-90th percentile
- -6.4 to +12 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 981, moderate (-15 to -9 dB) 2,048, strong (≥ -8 dB) 37,698.
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 DO9BAU 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 DO9BAU
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
- JO62 · 36,361 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 675 km (approx.)
- Last such locator decoded
- 2026-09-21 02:01 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 | DO9BAU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-21 01:55 | 80m | +10 / - | F5UKW | - / - | 13 | Partial capture |
| 09-21 01:49 | 80m | +2 / - | 9Y4D | - / - | 11 | Partial capture |
| 09-21 01:43 | 80m | +5 / -2 | ON7EQ | +6 / - | 3 | ✓ Closing observed |
| 09-21 01:37 | 80m | +2 / - | ON7EQ | - / - | 7 | Partial capture |
| 09-21 01:21 | 80m | 0 / - | EA1PG | - / -16 | 2 | Partial capture |
| 09-21 01:17 | 80m | +1 / +9 | F6CSQ | -3 / -6 | 6 | ✓ Full exchange observed |
| 09-21 01:06 | 80m | -2 / - | ON6AA | - / - | 12 | Partial capture |
| 09-21 00:52 | 80m | -2 / - | HB0CC | - / - | 12 | Partial capture |
| 09-21 00:41 | 80m | +3 / -13 | RV6G/QRP | -18 / - | 9 | Partial capture |
| 09-21 00:40 | 80m | +4 / - | UA9JTJ/9 | - / - | 2 | Partial capture |
| 09-21 00:31 | 80m | +9 / - | OH5RF | - / - | 13 | Partial capture |
| 09-21 00:16 | 80m | +3 / - | EA3FR | -20 / +6 | 12 | ✓ Closing observed |
| 09-20 23:50 | 80m | +4 / - | UA3RMR | - / -14 | 7 | ✓ Closing fragment |
| 09-20 23:35 | 80m | +6 / - | ON6AA | - / - | 11 | Partial capture |
| 09-20 23:06 | 80m | +2 / - | RI1FJZ | - / - | 11 | Partial capture |
| 09-20 22:39 | 80m | +6 / - | ON5WR | - / - | 42 | Partial capture |
| 09-20 22:27 | 80m | +7 / - | 8Y5PHM | - / - | 13 | Partial capture |
| 09-20 22:19 | 80m | 0 / - | F6HZF | - / - | 12 | Partial capture |
| 09-20 22:07 | 80m | +4 / - | F6HZF | - / - | 10 | Partial capture |
| 09-20 21:53 | 80m | +5 / - | IK2NHH | - / -21 | 22 | Partial capture |
| 09-20 21:42 | 80m | +5 / - | DG0CFK | - / - | 13 | Partial capture |
| 09-20 21:38 | 80m | +6 / - | G4LCM | -17 / -18 | 6 | ✓ Closing observed |
| 09-20 21:26 | 80m | -1 / - | IK2NHH | -21 / -21 | 20 | ✓ Closing observed |
| 09-20 21:20 | 80m | +3 / - | EI3KE | - / - | 11 | Partial capture |
| 09-20 21:19 | 80m | - / - | ON4MAP | -10 / - | 5 | Partial capture |
| 09-20 20:30 | 80m | +6 / -8 | RW3LS | -8 / -14 | 5 | ✓ Full exchange observed |
| 09-20 20:23 | 80m | -1 / - | IZ6FXP | - / - | 9 | Partial capture |
| 09-20 20:13 | 80m | +4 / -13 | SP3PZL | -5 / - | 12 | Partial capture |
| 09-20 20:06 | 80m | +9 / - | DL5XU | - / - | 13 | Partial capture |
| 09-20 19:54 | 80m | - / -16 | DF0PDF | +6 / - | 2 | ✓ Closing fragment |
| 09-20 19:48 | 80m | +9 / - | ON6AA | - / - | 3 | Partial capture |
| 09-20 19:27 | 80m | +1 / - | EI4KF | - / - | 13 | Partial capture |
| 09-20 19:22 | 80m | +5 / - | IU1NGT | - / -16 | 4 | ✓ Closing fragment |
| 09-20 19:17 | 80m | +4 / +4 | PA3ATR | +8 / -8 | 8 | ✓ Full exchange observed |
| 09-20 19:08 | 80m | +4 / -3 | DM3F | -2 / - | 4 | ✓ Closing observed |
| 09-20 19:00 | 80m | +8 / - | UA3PKH | - / - | 11 | Partial capture |
| 09-20 18:56 | 80m | +10 / - | OK2UPY/P | - / -4 | 6 | Partial capture |
| 09-20 18:53 | 80m | +8 / -12 | DD1RO | -14 / -16 | 5 | ✓ Full exchange observed |
| 09-20 18:47 | 80m | +9 / - | S56KR | - / - | 12 | Partial capture |
| 09-20 18:33 | 80m | +7 / - | LY3AB | - / - | 25 | Partial capture |
| 09-20 18:31 | 80m | +10 / +9 | DL4KBK | -8 / -13 | 5 | ✓ Full exchange observed |
| 09-20 18:28 | 80m | +1 / 0 | DL0IPA | +16 / 0 | 7 | ✓ Full exchange observed |
| 09-20 18:16 | 80m | -2 / - | OK2UPY/P | - / - | 13 | Partial capture |
| 09-20 18:12 | 80m | -4 / - | UA3PKH | - / - | 7 | Partial capture |
| 09-20 18:09 | 80m | 0 / - | UA3PKH | - / - | 2 | Partial capture |
| 09-20 18:03 | 80m | -6 / - | SQ2OK | - / -20 | 4 | ✓ Closing fragment |
| 09-20 18:01 | 80m | -2 / - | RA7T | - / - | 3 | ✓ Closing fragment |
| 09-20 17:59 | 80m | -6 / -10 | DG3YEV | +20 / - | 4 | ✓ Closing observed |
| 09-20 05:48 | 80m | 0 / - | F5UKW | - / - | 13 | Partial capture |
| 09-20 05:31 | 80m | +3 / - | F5UKW | - / - | 26 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 015400 +3 2002 9Y4D DO9BAU JO62 (x2) 015515 +10 2002 F5UKW DO9BAU JO62 (x13)
UTC dB Audio Message 150445 +9 2731 DO9BAU SV1FKZ RR73 155615 -24 1698 DO9BAU SV1QEZ -15 (x4) 074630 -24 1735 DO9BAU IW8PQ JM78 065030 -14 2402 DO9BAU R6DNC KN94 143545 -19 2364 DO9BAU EA8JF -01 (x2) 151345 -24 1957 DO9BAU OH2CI +18 (x2) 085915 -10 496 DO9BAU <...> -05 100245 -23 1499 DO9BAU JA1GLM -14 (x2) 094730 -11 2599 OK1TNM DO9BAU JO62
UTC dB Audio Message 190430 -15 2296 YU1EA DO9BAU JO62 (x6) 190845 -24 2295 TK/4O7CC DO9BAU JO62 190900 -15 1752 DO9BAU SP100PKP -03 190915 -21 2295 TK/4O7CC DO9BAU R-14 190930 -15 1752 DO9BAU RR73; SQ5N <...> +00 191200 -12 2295 LY3KI DO9BAU JO62 (x5)
UTC dB Audio Message 034630 -6 2328 DO9BAU 9A4ZM JN86 (x5)
UTC dB Audio Message 033315 -13 2534 DO9BAU DK7UY JO44 (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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