F8CDM — 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 F8CDM, decoded by SO8OO in southeastern Poland. 21 FT8 messages attributed to this token as transmitter, on 40m, 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 21 FT8 messages attributed to F8CDM 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 -18 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 21 messages
- Active dates
- 1 UTC dates
- Estimated median S/N
- -18 dB
- Estimated 10th-90th percentile
- -21 to -15 dB
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 18, moderate (-15 to -9 dB) 3, 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 F8CDM in decoded directed-looking exchanges:
Most frequent locator attributed to F8CDM
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
- JN07 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 1,544 km (approx.)
- Last such locator decoded
- 2026-10-21 08:21 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 | F8CDM S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 08:19 | 40m | -19 / - | KC2NJ | - / -17 | 2 | Partial capture |
| 10-21 08:12 | 40m | -17 / - | PD1WS | - / -12 | 2 | ✓ Closing fragment |
| 10-21 08:06 | 40m | -16 / - | F1JUM | - / -7 | 2 | Partial capture |
| 10-21 08:04 | 40m | - / - | SP5EXA | +20 / - | 5 | Partial capture |
| 10-21 08:00 | 40m | -18 / - | KD9RDU | - / - | 2 | Partial capture |
| 09-09 08:41 | 40m | - / - | PD1ADA | -21 / - | 2 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 080800 -16 1694 OS4K F8CDM 73 080830 -14 1694 F3CJ F8CDM -09 080900 -19 1695 CQ F8CDM JN07 080915 -15 1695 F8CDM DH5BM JO41 081130 -18 1694 W1UU F8CDM RR73 081200 -18 1694 PD1WS F8CDM -12 (x2) 081500 -21 1730 CQ DX F8CDM JN07 (x2) 081600 -23 1730 PD4RJ F8CDM -05 081945 -18 1748 KC2NJ F8CDM JN07 (x2) 082115 -21 1748 CQ F8CDM JN07 a1 082200 -5 1746 F8CDM UW5KW KO30 082215 -21 1748 WV9L F8CDM RR73
CW
No CW receptions recorded for this callsign in the last 30 days.
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