KJ4EB — 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 KJ4EB, decoded by SO8OO in southeastern Poland. 12 FT8 messages attributed to this token as transmitter, on 20m, across 2 UTC dates in the available aggregate history. Observed between 2026-08-22 and 2026-08-23.
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 12 FT8 messages attributed to KJ4EB 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 (100%). In this small sample, the estimated median decoder S/N was -17 dB; no usual signal pattern is inferred.
Overview
Observed FT8 message patterns
- Attributed sample
- 12 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) 9, 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 KJ4EB in decoded directed-looking exchanges:
Most frequent locator attributed to KJ4EB
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
- EM85 · 5 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 7,995 km (approx.)
- Last such locator decoded
- 2026-08-23 00:03 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 | KJ4EB S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-22 23:51 | 20m | - / - | DL1VCA | -4 / - | 3 | Partial capture |
| 08-22 23:51 | 20m | -16 / - | IS0KNG | - / -12 | 2 | ✓ Closing fragment |
| 08-22 23:48 | 20m | -17 / - | EA5IHI | - / -16 | 4 | ✓ Closing fragment |
| 08-22 23:32 | 20m | - / -7 | PY5EJ | -14 / - | 2 | Partial capture |
| 08-22 00:05 | 40m | - / - | F6FDY | -7 / - | 3 | Partial capture |
| 08-22 00:04 | 40m | - / -19 | IK6DLK | -11 / - | 3 | Partial capture |
| 08-21 23:47 | 20m | - / - | DG5PW | -3 / - | 2 | Partial capture |
| 08-21 23:38 | 20m | - / -5 | OK2CNI | -10 / - | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 234830 -17 2078 EA5IHI KJ4EB R-14 (x3) 235030 -16 2077 CQ KJ4EB EM85 235100 -15 2077 IS0KNG KJ4EB R-12 235115 -5 2299 KJ4EB DL1VCA JO62 235130 -17 2076 IS0KNG KJ4EB 73 235145 -3 2298 KJ4EB DL1VCA JO62 (x2) 235700 -18 2073 KJ1R KJ4EB -14 000130 -15 2073 CQ KJ4EB EM85 000145 +1 2073 KJ4EB YT1DDL KN04 000300 -13 2072 CQ KJ4EB EM85 (x2) 234515 -9 2778 KJ4EB F1PBZ RR73
UTC dB Audio Message 000430 -10 1913 KJ4EB IK6DLK JN63 (x3) 000530 -7 991 KJ4EB F6FDY JN33 (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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