S57BDM — 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 S57BDM, decoded by SO8OO in southeastern Poland. 516 FT8 messages attributed to this token as transmitter, on 80m, 60m, 40m, 20m, 10m, across 40 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-10-17.
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 516 FT8 messages attributed to S57BDM as the transmitting token by decoded message structure across 40 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (50%), followed by 80 m (32%) and 60 m (11%). Several six-hour UTC windows tied for the largest share (58%), so no unique busiest interval is claimed. Received S/N was mixed across SO8OO's weak, moderate and strong ranges; the estimated median was -9.1 dB.
Overview
Bands
Last attributed message: 2026-10-17 17:49 UTC
Observed FT8 message patterns
- Attributed sample
- 516 messages
- Active dates
- 40 UTC dates
- Estimated median S/N
- -9.1 dB
- Estimated 10th-90th percentile
- -18 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 113, moderate (-15 to -9 dB) 155, strong (≥ -8 dB) 248.
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 S57BDM 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 S57BDM
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
- JN76 · 249 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 631 km (approx.)
- Last such locator decoded
- 2026-10-17 17:48 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 | S57BDM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-17 17:48 | 60m | -4 / +3 | OH3MB | -8 / +8 | 5 | ✓ Full exchange observed |
| 10-17 17:46 | 60m | -5 / +9 | 9A4ZM | +1 / - | 5 | ✓ Full exchange observed |
| 10-17 17:44 | 60m | -2 / +10 | SP2EWQ | -4 / - | 6 | ✓ Full exchange observed |
| 10-17 17:43 | 60m | -2 / -7 | GW3TYI | -11 / +7 | 5 | ✓ Full exchange observed |
| 10-17 17:42 | 60m | -3 / - | IK4CBO | -6 / - | 4 | ✓ Full exchange observed |
| 10-17 17:40 | 60m | -2 / -6 | YL2NX | +9 / - | 6 | ✓ Full exchange observed |
| 10-17 06:22 | 60m | - / 0 | IQ3TR | -6 / - | 2 | ✓ Closing fragment |
| 10-16 19:25 | 60m | - / - | EA1IOK | -2 / - | 4 | Partial capture |
| 10-16 19:24 | 60m | - / - | 9A4ZM | -2 / - | 4 | Partial capture |
| 10-16 19:23 | 60m | 0 / -18 | IQ3TR | -6 / -8 | 6 | ✓ Full exchange observed |
| 10-16 16:55 | 40m | -10 / - | IQ3TR | - / - | 4 | Partial capture |
| 10-13 19:55 | 80m | +1 / - | IQ3TR | - / -4 | 9 | ✓ Closing fragment |
| 10-13 19:17 | 60m | -8 / +1 | I8OHQ | -12 / +7 | 7 | ✓ Full exchange observed |
| 10-13 19:17 | 60m | -4 / - | G8CVS | - / -9 | 2 | ✓ Closing fragment |
| 10-13 19:16 | 60m | - / - | DK7ZT | -8 / - | 3 | ✓ Closing fragment |
| 10-13 19:16 | 60m | -4 / 0 | F5LMJ | -19 / -2 | 4 | ✓ Full exchange observed |
| 10-13 19:14 | 60m | -10 / - | F6FHZ | -24 / -2 | 3 | ✓ Closing observed |
| 10-13 19:13 | 60m | -2 / - | PA0LDE | - / +4 | 2 | ✓ Closing fragment |
| 10-13 19:12 | 60m | -6 / -5 | US2YW | -8 / - | 5 | ✓ Full exchange observed |
| 10-13 19:11 | 60m | -3 / -11 | DL1GKC | -9 / +1 | 5 | ✓ Full exchange observed |
| 10-13 19:09 | 60m | -7 / +1 | SP9UPH | -11 / - | 5 | ✓ Full exchange observed |
| 10-13 19:08 | 60m | -10 / - | F4HSB | - / +2 | 2 | Partial capture |
| 10-13 19:07 | 60m | -10 / - | G8CVS | - / -9 | 2 | Partial capture |
| 10-13 19:06 | 60m | -7 / - | US2YW | - / - | 2 | Partial capture |
| 10-13 19:04 | 60m | - / - | F4HSB | -18 / - | 3 | Partial capture |
| 10-13 19:04 | 60m | 0 / -15 | DJ1TU | -1 / - | 6 | ✓ Full exchange observed |
| 10-13 19:02 | 60m | -10 / -1 | LZ2VQ | -9 / +2 | 7 | ✓ Full exchange observed |
| 10-13 19:02 | 60m | - / - | US2YW | -8 / - | 2 | Partial capture |
| 10-13 19:01 | 60m | -12 / +2 | ER3UA | +1 / +6 | 7 | ✓ Full exchange observed |
| 10-13 19:01 | 60m | -4 / +5 | ON7GB | +12 / - | 6 | ✓ Full exchange observed |
| 10-13 19:00 | 60m | -5 / -1 | IQ3TR | 0 / +3 | 5 | ✓ Full exchange observed |
| 10-13 18:42 | 40m | -4 / - | IQ3TR | +2 / - | 2 | ✓ Closing observed |
| 10-13 18:33 | 40m | -6 / - | IQ3TR | - / - | 9 | Partial capture |
| 10-10 06:15 | 40m | -4 / +10 | AO5CV | -14 / - | 4 | ✓ Closing observed |
| 10-10 06:13 | 40m | -10 / - | IK4TVP | -16 / - | 5 | ✓ Full exchange observed |
| 10-10 06:07 | 40m | -4 / - | AN5CV | - / -3 | 3 | ✓ Closing fragment |
| 10-10 06:04 | 40m | -8 / - | AO5CV | - / - | 5 | Partial capture |
| 10-09 04:48 | 80m | +4 / - | DO5PY | - / -6 | 3 | Partial capture |
| 10-09 04:46 | 80m | +4 / - | SP5EXA | +9 / +2 | 6 | ✓ Closing observed |
| 10-09 04:42 | 80m | +4 / -3 | F5PBG | -8 / -7 | 6 | ✓ Full exchange observed |
| 10-09 04:40 | 80m | - / - | DL4DP | -12 / - | 2 | Partial capture |
| 10-09 04:40 | 80m | +5 / -3 | SM7WNM | -10 / -24 | 6 | ✓ Full exchange observed |
| 10-09 04:40 | 80m | +6 / -1 | SP6FME | +5 / +7 | 6 | ✓ Full exchange observed |
| 10-09 04:39 | 80m | +6 / +3 | LY5A | +9 / -10 | 5 | ✓ Full exchange observed |
| 10-08 04:00 | 40m | - / -10 | OD5KU | +2 / - | 8 | ✓ Closing fragment |
| 10-07 19:43 | 80m | - / - | DL7ACA | +4 / - | 4 | Partial capture |
| 10-07 19:40 | 80m | +10 / -5 | DK8HC | +3 / -4 | 6 | ✓ Full exchange observed |
| 10-07 19:39 | 80m | +6 / -9 | AM5CV | -1 / - | 4 | ✓ Full exchange observed |
| 10-07 19:37 | 80m | +6 / - | AN5CV | -9 / -5 | 4 | ✓ Closing observed |
| 10-07 04:35 | 80m | -3 / - | PE1NPS | -6 / -7 | 4 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 174500 -4 1949 SP2EWQ S57BDM +23 (x2) 174545 -3 1874 S57BDM SP2EWQ R+10 174600 -3 1949 SP2EWQ S57BDM RR73 174615 -5 1874 S57BDM SP2EWQ 73 174615 +3 1945 S57BDM 9A4ZM JN86 174630 -7 1949 9A4ZM S57BDM +43 174645 -2 1945 S57BDM 9A4ZM R+09 174700 -3 1949 9A4ZM S57BDM RR73 174715 +2 1945 S57BDM 9A4ZM 73 174830 +1 1584 OH3MB S57BDM JN76 174845 -11 1583 S57BDM OH3MB +03 174900 -6 1584 OH3MB S57BDM R+08 174915 -5 1583 S57BDM OH3MB RR73 174930 -6 1584 OH3MB S57BDM 73
UTC dB Audio Message 183300 -5 1844 IQ3TR S57BDM JN76 (x10) 184345 +2 1344 S57BDM IQ3TR RR73 165500 -11 1737 IQ3TR S57BDM JN76 (x4)
UTC dB Audio Message 044745 +5 1919 SP5EXA S57BDM RR73 044800 +12 1920 S57BDM SP5EXA 73 044845 +5 1919 DO5PY S57BDM -06 (x3) 193315 +4 1724 AO5CV S57BDM JN76 195530 -1 1825 IQ3TR S57BDM JN76 (x9)
UTC dB Audio Message 191900 -20 1924 BU2FW S57BDM R-15 (x2) 192000 -19 1924 A41ZZ S57BDM R-06 192145 -17 2023 TF4M S57BDM JN76 074145 -19 1791 9A7DNZ S57BDM JN76 (x5) 074545 -21 1985 OI5AY S57BDM JN76 (x4) 212400 +6 2942 S57BDM N2BJ -12 212430 +11 2943 S57BDM RR73; F4LHR <...> +00
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.
CW
No CW receptions recorded for this callsign in the last 30 days.
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