OK4RS — 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 OK4RS, decoded by SO8OO in southeastern Poland. 265 FT8 messages attributed to this token as transmitter, on 80m, 40m, 20m, across 7 UTC dates in the available aggregate history. Observed between 2026-06-07 and 2026-10-30.
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 265 FT8 messages attributed to OK4RS as the transmitting token by decoded message structure across 7 UTC dates in the available aggregate history. The largest monitored-band total was 40 m (59%), followed by 80 m (35%) and 20 m (5%). Most decodes (62%) fell within the six-hour window 17:00-23:00 UTC. Most successfully decoded messages attributed to this token fell in SO8OO's strong S/N range (91%); the estimated median was -2 dB.
Overview
Bands
Last attributed message: 2026-10-30 05:51 UTC
Observed FT8 message patterns
- Attributed sample
- 265 messages
- Active dates
- 7 UTC dates
- Estimated median S/N
- -2 dB
- Estimated 10th-90th percentile
- -8 to +4 dB
- Recurring-pattern threshold
- Met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 0, moderate (-15 to -9 dB) 25, strong (≥ -8 dB) 240.
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 OK4RS in decoded directed-looking exchanges:
Most frequent locator attributed to OK4RS
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
- JN69 · 204 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 634 km (approx.)
- Last such locator decoded
- 2026-10-30 05:51 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 | OK4RS S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 11-02 17:28 | 40m | - / -10 | G8KHF | -11 / - | 3 | ✓ Closing fragment |
| 10-30 05:46 | 40m | -3 / - | W6DGH | - / - | 11 | Partial capture |
| 10-30 05:39 | 40m | -7 / - | XE1GLL | - / - | 7 | Partial capture |
| 10-29 06:44 | 40m | -4 / - | IQ0AAI | - / - | 7 | Partial capture |
| 08-27 11:02 | 40m | -8 / - | <...> | - / -12 | 2 | Partial capture |
| 08-27 06:05 | 20m | - / -23 | XQ1KK | -15 / - | 3 | Partial capture |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 054530 -7 2239 W9MO OK4RS JN69 054630 -4 2239 W6DGH OK4RS JN69 (x11) 172830 -8 733 OK4RS G8KHF -10 (x3)
UTC dB Audio Message 181800 -1 618 OK4RS IU5HIU JN53 060530 -18 1042 OK4RS XQ1KK -23 (x3)
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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