EA4K — FT8 activity observed at SO8OO
Receiver-side FT8 activity involving EA4K, decoded by SO8OO in southeastern Poland. 14 FT8 messages attributed to this token as transmitter, on 20m, across 6 UTC dates in the available aggregate history. Observed between 2026-08-01 and 2026-08-30.
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 14 FT8 messages attributed to EA4K 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 (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
- 14 messages
- Active dates
- 6 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) 12, moderate (-15 to -9 dB) 2, 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 EA4K in decoded directed-looking exchanges:
Attributed messages by UTC hour
Rolling 90-day UTC chart window. Counts follow decoded message structure: the first token for CQ, or the second token in a directed-looking message.
Most frequent locator attributed to EA4K
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
- IN80 · 10 decoded messages
- SO8OO receiver locator
- KN09VW
- Locator-centre separation
- 2,193 km (approx.)
- Last such locator decoded
- 2026-08-30 18:31 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 | EA4K S/N | Counterpart | Counterpart S/N | Msgs | Capture |
|---|---|---|---|---|---|---|
| 08-30 18:33 | 20m | - / - | DK8HC | -11 / - | 3 | Partial capture |
| 08-30 18:31 | 20m | -21 / - | <...> | - / -14 | 2 | Partial capture |
| 08-30 07:38 | 20m | -18 / - | 3V8HP | - / - | 3 | Partial capture |
| 08-06 18:27 | 20m | -17 / -16 | F5PBG | -21 / -11 | 3 | Partial capture |
| 08-05 16:51 | 20m | -16 / - | A61OK | - / - | 3 | Partial capture |
| 08-01 21:25 | 20m | -17 / - | 3A2MW | - / -14 | 3 | ✓ Closing fragment |
Recent FT8 messages decoded at SO8OO
Frequency values are decoder audio offsets in hertz, not RF frequencies.
UTC dB Audio Message 165330 -15 1116 A61OK EA4K IN80 182330 -14 1915 EA4K YO9PH -14 182700 -21 1422 EA4K F5PBG R-16 (x2) 182815 -17 1372 F5PBG EA4K -11 075445 -17 1037 VP2MAA EA4K IN80 104400 -16 725 HB9FAW EA4K IN80 073800 -19 833 3V8HP EA4K IN80 (x3) 183115 -23 1509 <...> EA4K IN80 (x2) 183300 -9 629 EA4K DK8HC JO42 (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.
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