WB4DCM — 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 WB4DCM, decoded by SO8OO in southeastern Poland. 74 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-06-08 and 2026-09-09.
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 74 FT8 messages attributed to WB4DCM 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 (99%), followed by 40 m (1%). Several six-hour UTC windows tied for the largest share (100%), so no unique busiest interval is claimed. Most successfully decoded messages attributed to this token fell in SO8OO's moderate S/N range (62%); the estimated median was -14 dB.
Overview
Bands
Last attributed message: 2026-09-09 22:42 UTC
Observed FT8 message patterns
- Attributed sample
- 74 messages
- Active dates
- 6 UTC dates
- Estimated median S/N
- -14 dB
- Estimated 10th-90th percentile
- -22 to -9 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 25, moderate (-15 to -9 dB) 46, strong (≥ -8 dB) 3.
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 WB4DCM in decoded directed-looking exchanges:
Most frequent locator attributed to WB4DCM
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
- FM05 · 36 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,754 km (approx.)
- Last such locator decoded
- 2026-07-18 00:12 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 | WB4DCM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-31 21:51 | 40m | - / +4 | IZ5WTV | -7 / - | 3 | ✓ Closing fragment |
| 09-09 22:34 | 40m | - / -13 | F5PBG | -6 / - | 4 | ✓ Closing fragment |
| 09-09 22:32 | 40m | - / -11 | EA1KCN | -2 / - | 4 | ✓ Closing fragment |
| 09-09 22:22 | 40m | - / - | F5PBG | -4 / - | 2 | Partial capture |
| 09-09 22:22 | 40m | - / -18 | F5RRS | -4 / - | 6 | ✓ Closing fragment |
| 09-09 22:21 | 40m | - / -16 | CR7BRV | -7 / - | 2 | ✓ Closing fragment |
| 09-04 21:47 | 40m | - / - | DL7VGU | +11 / - | 6 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 222545 -2 2792 WB4DCM EA1KCN IN53 (x4) 223415 -2 2245 WB4DCM F5PBG IN78 223415 -2 2697 WB4DCM EA1KCN 73 223445 -9 2245 WB4DCM F5PBG IN78 (x3) 224245 -18 2194 VE3SX WB4DCM 73 215130 -5 2298 WB4DCM IZ5WTV +04 (x3) 211030 -12 502 WB4DCM 2E0MCP RR73 210845 -13 633 WB4DCM IZ6ASI -02
CW
No CW receptions recorded for this callsign in the last 30 days.
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