DB4BD — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving DB4BD, decoded by SO8OO in southeastern Poland. 9 FT8 messages attributed to this token as transmitter, on 20m, 10m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-09 and 2026-08-26.
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 9 FT8 messages attributed to DB4BD as the transmitting token by decoded message structure across 6 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (89%), followed by 10 m (11%). In this small sample, the estimated median decoder S/N was -11 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-08-26 09:19 UTC
Observed FT8 message patterns
- Attributed sample
- 9 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -11 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 7, strong (≥ -8 dB) 2.
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 DB4BD in decoded directed-looking exchanges:
Most frequent locator attributed to DB4BD
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
- JO32 · 2 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,067 km (approx.)
- Last such locator decoded
- 2026-06-09 09:41 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 | DB4BD S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-28 12:37 | 20m | - / -5 | MM3RCR | +8 / - | 2 | ✓ Closing fragment |
| 08-26 09:18 | 20m | -11 / - | WA1BXY | - / -12 | 2 | Partial capture |
| 08-22 12:49 | 20m | - / -11 | M0LAD | -8 / - | 2 | ✓ Closing fragment |
| 07-15 07:33 | 20m | - / -6 | IW4DNI | -8 / - | 2 | ✓ Closing fragment |
| 06-26 11:43 | 10m | - / +2 | OH5KNL | -4 / - | 2 | ✓ Closing fragment |
| 06-25 10:43 | 10m | - / -3 | IQ6PE | -8 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 073330 -10 1951 DB4BD IW4DNI R-06 (x2) 124930 -9 2838 DB4BD M0LAD R-11 (x2) 123945 -13 2788 E74K DB4BD +12 091830 -10 2670 WA1BXY DB4BD -12 (x2) 123715 +6 2603 DB4BD MM3RCR R-05 (x2)
UTC dB Audio Message 104330 -8 1433 DB4BD IQ6PE R-03 (x2) 114300 -5 2784 DB4BD OH5KNL R+02 (x2) 162430 +9 2837 DB4BD F4DWY R-02 142900 -5 2906 DO1NUE DB4BD 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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