DK4BM — reception at SO8OO
Signals decoded by SO8OO in southeastern Poland. FT8 and CW have separate histories; all times are UTC.
FT8 activity
Receiver-side FT8 activity involving DK4BM, decoded by SO8OO in southeastern Poland. 25 FT8 messages attributed to this token as transmitter, on 160m, 80m, across 1 UTC dates in the available aggregate history. Last observed 2026-10-21.
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 25 FT8 messages attributed to DK4BM as the transmitting token by decoded message structure across 1 UTC dates in the available aggregate history. The largest monitored-band total was 80 m (76%), followed by 160 m (24%). In this small sample, the estimated median decoder S/N was +12 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-10-21 21:46 UTC
Observed FT8 message patterns
- Attributed sample
- 25 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- +12 dB
- Estimated 10th-90th percentile
- -1 to +18 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 0, strong (≥ -8 dB) 25.
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 DK4BM in decoded directed-looking exchanges:
Most frequent locator attributed to DK4BM
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
- JO43 · 11 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 964 km (approx.)
- Last such locator decoded
- 2026-10-21 21:36 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 | DK4BM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 21:45 | 160m | +7 / - | SP9JCN | +9 / -3 | 4 | Partial capture |
| 10-21 21:44 | 160m | -2 / - | PE1NPS | -16 / -5 | 4 | ✓ Closing observed |
| 10-21 21:43 | 160m | -2 / - | DO5PY | - / -3 | 2 | ✓ Closing fragment |
| 10-21 21:36 | 80m | +14 / - | M7KBB | - / -6 | 4 | ✓ Closing fragment |
| 10-21 21:34 | 80m | +10 / - | DO6LE | +6 / - | 4 | ✓ Full exchange observed |
| 10-21 21:32 | 80m | +12 / - | W1MK | - / -17 | 2 | ✓ Closing fragment |
| 10-21 21:28 | 80m | +16 / - | OH3DJP | - / - | 7 | Partial capture |
| 10-21 21:27 | 80m | - / -17 | R2EA/P | -2 / - | 3 | Partial capture |
| 10-21 21:26 | 80m | +12 / - | EA8DSJ | - / -14 | 4 | ✓ Closing fragment |
| 10-21 19:41 | 40m | - / - | SV1DKR | +1 / - | 2 | Partial capture |
| 10-21 19:34 | 40m | - / - | TA2EE | -15 / - | 5 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 214330 +12 2620 DK4BM UA4FKT LO23 214345 -4 2302 DO5PY DK4BM R-03 214400 -15 2397 DK4BM PE1NPS JO22 214415 +1 2302 DO5PY DK4BM 73 214430 -17 2397 DK4BM PE1NPS JO22 214445 -1 2302 PE1NPS DK4BM -05 214500 +9 2519 DK4BM SP9JCN JO90 214515 -4 2317 PE1NPS DK4BM RR73 214530 +9 2519 DK4BM SP9JCN JO90 214615 +7 2519 SP9JCN DK4BM -03 (x2)
UTC dB Audio Message 212945 +17 479 OH3DJP DK4BM JO43 (x4) 213245 +14 739 W1MK DK4BM -17 (x2) 213445 +3 2170 DK4BM DO6LE +14 213500 +10 1670 DO6LE DK4BM R+19 213515 +9 1670 DK4BM DO6LE RR73 213530 +11 1670 DO6LE DK4BM 73 213600 +15 1409 M7KBB DK4BM JO43 213615 +5 918 DK4BM R2EA/P -11 213630 +12 1409 M7KBB DK4BM JO43 (x3)
UTC dB Audio Message 193430 -13 2371 DK4BM TA2EE KM69 (x6) 194130 -1 1409 DK4BM SV1DKR KM18 (x2) 194430 -13 1059 DK4BM SV9AUP KM25
CW
No CW receptions recorded for this callsign in the last 30 days.
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