PD1BU — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving PD1BU, decoded by SO8OO in southeastern Poland. 29 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 5 UTC dates in the available aggregate history. Observed between 2026-07-21 and 2026-08-31.
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 29 FT8 messages attributed to PD1BU as the transmitting token by decoded message structure across 5 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (93%), followed by 40 m (7%). Several six-hour UTC windows tied for the largest share (86%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (79%); the estimated median was -1 dB.
Overview
Bands
Last attributed message: 2026-08-31 16:53 UTC
Observed FT8 message patterns
- Attributed sample
- 29 messages
- Active dates
- 5 UTC dates
- Estimated median S/N
- -1 dB
- Estimated 10th-90th percentile
- -15 to +13 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 2, moderate (-15 to -9 dB) 4, strong (≥ -8 dB) 23.
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 PD1BU 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 PD1BU
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
- JO21 · 23 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,192 km (approx.)
- Last such locator decoded
- 2026-08-31 16:53 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 | PD1BU S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-31 16:49 | 20m | -5 / - | 9M2DGA | - / - | 4 | Partial capture |
| 08-31 16:42 | 20m | -6 / - | 9M2DGA | - / - | 5 | Partial capture |
| 08-26 12:04 | 20m | -11 / -14 | 7X2KF | -12 / -19 | 3 | Partial capture |
| 08-25 18:59 | 20m | +9 / - | JA1PSS | -15 / -16 | 5 | ✓ Closing observed |
| 08-25 18:54 | 20m | +14 / - | WZ8DX | - / - | 4 | Partial capture |
| 08-25 18:51 | 20m | +6 / - | W2DAN | - / -15 | 6 | ✓ Closing fragment |
| 07-21 00:32 | 40m | -16 / -13 | W4DXM | -3 / -2 | 4 | ✓ Full exchange observed |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 190015 +12 580 JA1PSS PD1BU R-16 190030 -15 723 PD1BU JA1PSS RR73 190045 +10 580 JA1PSS PD1BU 73 120415 -8 616 7X2KF PD1BU JO21 120430 -12 529 PD1BU 7X2KF -14 120445 -14 616 7X2KF PD1BU R-19 164200 -8 729 9M2DGA PD1BU JO21 (x9)
UTC dB Audio Message 003230 -7 2791 PD1BU F1PBZ -12 003245 -16 949 W4DXM PD1BU JO21 003400 -2 787 PD1BU W4DXM -13 003415 -15 949 W4DXM PD1BU R-02 003430 -4 786 PD1BU W4DXM RR73
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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