K4WPA — 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 K4WPA, decoded by SO8OO in southeastern Poland. 5 FT8 messages attributed to this token as transmitter, on 40m, 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-06-12 and 2026-09-20.
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 5 FT8 messages attributed to K4WPA as the transmitting token by decoded message structure across 2 UTC dates in the available aggregate history. The largest monitored-band total was 20 m (80%), followed by 40 m (20%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Bands
Last attributed message: 2026-09-20 23:58 UTC
Observed FT8 message patterns
- Attributed sample
- 5 messages
- Active dates
- 2 UTC dates
- Estimated median S/N
- -17 dB
- S/N percentile sample
- Too small
- Recurring-pattern threshold
- Not met
SO8OO display ranges among successful decodes: weak (≤ -16 dB) 5, moderate (-15 to -9 dB) 0, 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 K4WPA in decoded directed-looking exchanges:
Most frequent locator attributed to K4WPA
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
- FM14 · 3 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,713 km (approx.)
- Last such locator decoded
- 2026-06-12 00:39 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 | K4WPA S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 10-21 02:45 | 40m | - / -17 | SV4LGX | -1 / - | 5 | ✓ Closing fragment |
| 10-19 00:18 | 40m | - / -6 | F1PBZ | +1 / - | 4 | ✓ Closing fragment |
| 08-10 21:24 | 20m | - / -15 | SV5BYP | -14 / - | 2 | ✓ Closing fragment |
| 08-07 12:18 | 20m | - / - | CT3MD | -11 / - | 4 | Partial capture |
| 08-04 23:01 | 20m | - / - | DL1R | +4 / - | 8 | Partial capture |
| 08-02 11:39 | 20m | - / -17 | DC9LJ | -16 / - | 2 | Partial capture |
| 08-01 00:27 | 20m | - / -7 | EA5ISM | -13 / - | 4 | Partial capture |
| 07-30 11:54 | 20m | - / -20 | PA7Q | -12 / - | 4 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 235815 -24 2038 PD7LJ K4WPA RR73 001830 -6 2737 K4WPA F1PBZ -06 (x4) 023830 -2 2040 K4WPA SV4LGX KM09 (x6)
UTC dB Audio Message 230445 +6 2672 K4WPA DL1R JN58 230545 +0 2773 K4WPA F1PBZ -15 230545 +3 2671 K4WPA DL1R JN58 115045 -23 2124 K4WPA F4HQL JN29 121815 -11 928 K4WPA CT3MD IM13 (x4) 122615 -15 1734 K4WPA F5ICC JN04 212415 -14 1580 K4WPA SV5BYP -15 (x2) 213015 -19 1235 K4WPA ON1DGN RR73 213015 -3 291 K4WPA OK4SD JN79 002715 -7 2635 K4WPA F1PBZ -02 010045 -10 2531 K4WPA UN0GY RR73
CW
No CW receptions recorded for this callsign in the last 30 days.
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