BD4IAA — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving BD4IAA, decoded by SO8OO in southeastern Poland. 16 FT8 messages attributed to this token as transmitter, on 40m, across 1 UTC dates in the available aggregate history. Last observed 2026-09-10.
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 BD4IAA as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (100%). In this small sample, the estimated median decoder S/N was -14 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 16 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -14 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 4, moderate (-15 to -9 dB) 12, 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 BD4IAA in decoded directed-looking exchanges:
Most frequent locator attributed to BD4IAA
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
- PM07 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,495 km (approx.)
- Last such locator decoded
- 2026-09-10 21:40 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 | BD4IAA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 09-16 14:46 | 40m | - / -16 | RY3D | +4 / - | 4 | ✓ Closing fragment |
| 09-10 22:08 | 40m | - / -13 | F6KHM | +8 / - | 5 | ✓ Closing fragment |
| 09-10 22:05 | 40m | - / -24 | F8DBF | +4 / - | 5 | ✓ Closing fragment |
| 09-10 22:03 | 40m | - / -17 | G8KHF | -6 / - | 2 | ✓ Closing fragment |
| 09-10 21:54 | 40m | - / -16 | R3VA | -13 / - | 3 | Partial capture |
| 09-10 21:48 | 40m | - / -12 | EA7BF | -15 / - | 2 | Partial capture |
| 09-10 21:47 | 40m | - / -14 | GI7LOU | +4 / - | 6 | Partial capture |
| 09-10 21:45 | 40m | -19 / - | SP7NC | - / -15 | 2 | Partial capture |
| 09-10 21:44 | 40m | - / - | EA4CFT | -8 / - | 5 | Partial capture |
| 09-10 21:44 | 40m | - / -8 | F5RRS | +12 / - | 5 | ✓ Closing fragment |
| 09-10 21:44 | 40m | -14 / -9 | IK6DLK | -7 / -6 | 3 | ✓ Full exchange observed |
| 09-10 21:42 | 40m | - / - | PD2PE | -10 / - | 6 | Partial capture |
| 09-10 21:42 | 40m | -13 / - | RA3ZH | -8 / -6 | 4 | ✓ Closing observed |
| 09-10 21:41 | 40m | -14 / - | DK7ZT | - / -19 | 2 | ✓ Closing fragment |
| 09-10 21:37 | 40m | -12 / -6 | EA3EDU | -3 / -6 | 6 | ✓ Full exchange observed |
| 09-10 21:37 | 40m | -12 / - | YG2CLC | - / - | 4 | Partial capture |
| 09-10 14:22 | 40m | - / -17 | UR1CCT | +14 / - | 2 | ✓ Closing fragment |
| 09-10 14:15 | 40m | - / -15 | RK4UZ | -3 / - | 5 | Partial capture |
| 09-10 14:10 | 40m | - / - | UR1CCT | +14 / - | 2 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 220530 +8 2473 BD4IAA F8DBF IN78 220600 -22 1647 BD4IAA HG8LXL KN06 220600 +2 2473 BD4IAA F8DBF IN78 (x4) 220830 +8 2671 BD4IAA F6KHM -13 (x5) 144630 +2 2599 BD4IAA RY3D KO95 (x4)
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