OH8MBU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving OH8MBU, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 20m, across 4 UTC dates in the available aggregate history. Observed between 2026-07-25 and 2026-08-20.
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 12 FT8 messages attributed to OH8MBU as the transmitting token by decoded message structure across 4 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 12 messages
- Active dates
- 4 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 8, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 0.
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 OH8MBU in decoded directed-looking exchanges:
Most frequent locator attributed to OH8MBU
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
- KP34 · 7 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,648 km (approx.)
- Last such locator decoded
- 2026-08-20 14:18 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 | OH8MBU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-12 13:32 | 40m | - / - | DJ0MAB | -11 / - | 3 | Partial capture |
| 08-25 04:47 | 60m | - / - | ON7GB | 0 / - | 4 | Partial capture |
| 08-25 04:45 | 60m | - / -23 | LY3W | +7 / - | 3 | ✓ Closing fragment |
| 08-20 14:14 | 20m | - / -7 | EA1IOK | -7 / - | 3 | ✓ Closing fragment |
| 08-20 14:11 | 20m | - / -11 | IU2VBP | +4 / - | 5 | ✓ Closing fragment |
| 08-03 19:33 | 80m | - / - | 9A4ZM | +5 / - | 3 | Partial capture |
| 08-03 19:33 | 80m | - / - | DO1HWM | -1 / - | 11 | Partial capture |
| 07-27 15:33 | 20m | - / -1 | IU5TPM | -19 / - | 3 | ✓ Closing fragment |
| 07-25 17:40 | 20m | -11 / - | M7YDM | - / -13 | 3 | ✓ Closing fragment |
| 07-25 17:37 | 20m | -16 / - | M7YDM | - / - | 2 | Partial capture |
| 07-25 17:06 | 20m | -19 / - | BV2NF | - / -11 | 3 | Partial capture |
| 07-21 16:52 | 40m | - / -16 | DL8TV | -14 / - | 2 | Partial capture |
| 07-21 16:52 | 40m | - / - | UA4FKT | -14 / - | 4 | Partial capture |
| 07-20 19:31 | 20m | - / +5 | I0XNH | +3 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 165215 -13 1917 OH8MBU UA4FKT LO23 (x2) 165245 -15 1383 OH8MBU DL8TV -16 165315 -20 1917 OH8MBU UA4FKT LO23 165315 -14 1383 OH8MBU DL8TV -16 165345 -13 1917 OH8MBU UA4FKT LO23 133230 -12 740 OH8MBU DJ0MAB JN49 (x3)
UTC dB Audio Message 044530 +7 2536 OH8MBU LY3W KO14 (x3) 044700 +0 2612 OH8MBU ON7GB JO21 (x4)
UTC dB Audio Message 153445 -20 2059 OH8MBU IU5TPM 73 175830 -20 2216 9J2FI OH8MBU KP34 182245 -24 2038 OH8MBU EA3DBZ JN12 172715 -13 2395 9J2FI OH8MBU 73 172945 -17 2395 RX3DRC OH8MBU -04 141015 -17 1941 OH8MBU SP5TBR -07 141145 +6 870 OH8MBU IU2VBP JN45 (x5) 141415 -6 672 OH8MBU EA1IOK IN62 (x3) 141830 -23 1885 <CT1END/P> OH8MBU KP34
UTC dB Audio Message 193315 +1 1556 OH8MBU DO1HWM JO41 (x2) 193345 +8 1049 OH8MBU 9A4ZM JN86 193415 +0 1556 OH8MBU DO1HWM JO41 193415 +5 1049 OH8MBU 9A4ZM JN86 193445 -3 1556 OH8MBU DO1HWM JO41 193445 +3 1049 OH8MBU 9A4ZM JN86 193515 +1 1557 OH8MBU DO1HWM JO41 (x7)
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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